Publish

- 0x.js@2.0.2 - @0x/abi-gen-wrappers@1.0.3 - @0x/assert@1.0.16 - @0x/asset-buyer@2.2.1 - @0x/base-contract@3.0.4 - @0x/connect@3.0.4 - @0x/contract-wrappers@4.0.0 - contracts@2.1.52 - @0x/dev-tools-pages@0.0.4 - @0x/dev-utils@1.0.15 - @0x/fill-scenarios@1.0.10 - @0x/instant@0.0.5 - @0x/json-schemas@2.1.0 - @0x/metacoin@0.0.26 - @0x/migrations@2.0.2 - @0x/order-utils@3.0.0 - @0x/order-watcher@2.2.2 - @0x/react-docs@1.0.16 - @0x/react-shared@1.0.19 - @0x/sol-compiler@1.1.10 - @0x/sol-cov@2.1.10 - @0x/sol-doc@1.0.5 - @0x/sra-spec@1.0.9 - @0x/subproviders@2.1.2 - @0x/testnet-faucets@1.0.54 - @0x/web3-wrapper@3.1.2 - @0x/website@0.0.57
Updated CHANGELOGS
2018-11-12 14:30:26 +01:00 · 2018-11-12 14:30:14 +01:00 · 2018-11-12 14:04:28 +01:00 · 2018-11-12 13:54:38 +01:00 · 2018-11-12 13:53:39 +01:00 · 2018-11-12 13:44:24 +01:00
419 changed files with 9104 additions and 2845 deletions
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -31,7 +31,7 @@ jobs:
            - restore_cache:
                  keys:
                      - repo-{{ .Environment.CIRCLE_SHA1 }}
-            - run: cd packages/website && yarn build
+            - run: cd packages/website && yarn build:prod
    test-contracts-ganache:
        docker:
            - image: circleci/node:9
@@ -162,6 +162,9 @@ jobs:
        working_directory: ~/repo
        docker:
            - image: circleci/python
+            - image: 0xorg/ganache-cli
+              command: |
+                  ganache-cli --gasLimit 10000000 --noVMErrorsOnRPCResponse --db /snapshot --noVMErrorsOnRPCResponse -p 8545 --networkId 50 -m "concert load couple harbor equip island argue ramp clarify fence smart topic"
        steps:
            - checkout
            - run: sudo chown -R circleci:circleci /usr/local/bin
--- a/.gitignore
+++ b/.gitignore
@@ -99,6 +99,7 @@ packages/*/scripts/
 .mypy_cache
 .tox
 python-packages/*/build
+python-packages/*/dist
 __pycache__
 python-packages/*/src/*.egg-info
 python-packages/*/.coverage
--- a/.prettierignore
+++ b/.prettierignore
@@ -4,6 +4,7 @@ lib
 /packages/contracts/generated-artifacts
 /packages/abi-gen-wrappers/src/generated-wrappers
 /packages/contract-artifacts/artifacts
+/python-packages/order_utils/src/zero_ex/contract_artifacts/artifacts
 /packages/json-schemas/schemas
 /packages/metacoin/src/contract_wrappers
 /packages/metacoin/artifacts
--- a/19
+++ b/19
@@ -10,19 +10,26 @@ packages/instant/  @BMillman19 @fragosti @steveklebanoff
 packages/website/  @BMillman19 @fragosti @fabioberger @steveklebanoff

 # Dev tools & setup
+.circleci/ @LogvinovLeon
 packages/abi-gen/ @LogvinovLeon
 packages/base-contract/ @LogvinovLeon
+packages/connect/ @fragosti 
 packages/contract_templates/ @LogvinovLeon
+packages/contract-addresses/ @albrow
+packages/contract-artifacts/ @albrow
 packages/dev-utils/ @LogvinovLeon @fabioberger
-
+packages/devnet/ @albrow
 packages/ethereum-types/ @LogvinovLeon
 packages/metacoin/ @LogvinovLeon
+packages/monorepo-scripts/ @fabioberger
+packages/order-utils/ @fabioberger @LogvinovLeon 
 packages/sol-compiler/ @LogvinovLeon
 packages/sol-cov/ @LogvinovLeon
 packages/sol-resolver/ @LogvinovLeon
-packages/web3-wrapper/ @LogvinovLeon @fabioberger
-.circleci/ @LogvinovLeon
 packages/subproviders/ @fabioberger @dekz
-packages/connect/ @fragosti 
-packages/monorepo-scripts/ @fabioberger
-packages/order-utils/ @fabioberger @LogvinovLeon 
+packages/verdaccio/ @albrow
+packages/web3-wrapper/ @LogvinovLeon @fabioberger
+python-packages/ @feuGeneA
+
+# Protocol/smart contracts
+packages/contracts/test/ @albrow
--- a/README.md
+++ b/README.md
@@ -20,29 +20,37 @@ If you're developing on 0x now or are interested in using 0x infrastructure in t

 ### Published Packages

-| Package                                                  | Version                                                                                                                 | Description                                                                                                               |
-| -------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------- |
-| [`0x.js`](/packages/0x.js)                               | [![npm](https://img.shields.io/npm/v/0x.js.svg)](https://www.npmjs.com/package/0x.js)                                   | A Javascript library for interacting with the 0x protocol                                                                 |
-| [`@0x/abi-gen`](/packages/abi-gen)                       | [![npm](https://img.shields.io/npm/v/@0x/abi-gen.svg)](https://www.npmjs.com/package/@0x/abi-gen)                       | Tool to generate TS wrappers from smart contract ABIs                                                                     |
-| [`@0x/assert`](/packages/assert)                         | [![npm](https://img.shields.io/npm/v/@0x/assert.svg)](https://www.npmjs.com/package/@0x/assert)                         | Type and schema assertions used by our packages                                                                           |
-| [`@0x/asset-buyer`](/packages/asset-buyer)               | [![npm](https://img.shields.io/npm/v/@0x/asset-buyer.svg)](https://www.npmjs.com/package/@0x/asset-buyer)               | Convenience package for discovering and buying assets with Ether.                                                         |
-| [`@0x/base-contract`](/packages/base-contract)           | [![npm](https://img.shields.io/npm/v/@0x/base-contract.svg)](https://www.npmjs.com/package/@0x/base-contract)           | BaseContract used by auto-generated `abi-gen` wrapper contracts                                                           |
-| [`@0x/connect`](/packages/connect)                       | [![npm](https://img.shields.io/npm/v/@0x/connect.svg)](https://www.npmjs.com/package/@0x/connect)                       | A Javascript library for interacting with the Standard Relayer API                                                        |
-| [`@0x/dev-utils`](/packages/dev-utils)                   | [![npm](https://img.shields.io/npm/v/@0x/dev-utils.svg)](https://www.npmjs.com/package/@0x/dev-utils)                   | Dev utils to be shared across 0x projects and packages                                                                    |
-| [`@0x/json-schemas`](/packages/json-schemas)             | [![npm](https://img.shields.io/npm/v/@0x/json-schemas.svg)](https://www.npmjs.com/package/@0x/json-schemas)             | 0x-related json schemas                                                                                                   |
-| [`@0x/monorepo-scripts`](/packages/monorepo-scripts)     | [![npm](https://img.shields.io/npm/v/@0x/monorepo-scripts.svg)](https://www.npmjs.com/package/@0x/monorepo-scripts)     | Monorepo scripts                                                                                                          |
-| [`@0x/order-utils`](/packages/order-utils)               | [![npm](https://img.shields.io/npm/v/@0x/order-utils.svg)](https://www.npmjs.com/package/@0x/order-utils)               | A set of utilities for generating, parsing, signing and validating 0x orders.                                             |
-| [`@0x/react-docs`](/packages/react-docs)                 | [![npm](https://img.shields.io/npm/v/@0x/react-docs.svg)](https://www.npmjs.com/package/@0x/react-docs)                 | React documentation component for rendering TypeDoc & Doxity generated JSON                                               |
-| [`@0x/react-shared`](/packages/react-shared)             | [![npm](https://img.shields.io/npm/v/@0x/react-shared.svg)](https://www.npmjs.com/package/@0x/react-shared)             | 0x shared react components                                                                                                |
-| [`@0x/sol-compiler`](/packages/sol-compiler)             | [![npm](https://img.shields.io/npm/v/@0x/sol-compiler.svg)](https://www.npmjs.com/package/@0x/sol-compiler)             | A thin wrapper around Solc.js that outputs artifacts, resolves imports, only re-compiles when needed, and other niceties. |
-| [`@0x/sol-cov`](/packages/sol-cov)                       | [![npm](https://img.shields.io/npm/v/@0x/sol-cov.svg)](https://www.npmjs.com/package/@0x/sol-cov)                       | Solidity test coverage tool                                                                                               |
-| [`@0x/sra-spec`](/packages/sra-spec)                     | [![npm](https://img.shields.io/npm/v/@0x/sra-spec.svg)](https://www.npmjs.com/package/@0x/sra-spec)                     | OpenAPI specification for the standard relayer API                                                                        |
-| [`@0x/subproviders`](/packages/subproviders)             | [![npm](https://img.shields.io/npm/v/@0x/subproviders.svg)](https://www.npmjs.com/package/@0x/subproviders)             | Useful web3 subproviders (e.g LedgerSubprovider)                                                                          |
-| [`@0x/tslint-config`](/packages/tslint-config)           | [![npm](https://img.shields.io/npm/v/@0x/tslint-config.svg)](https://www.npmjs.com/package/@0x/tslint-config)           | Custom 0x development TSLint rules                                                                                        |
-| [`@0x/types`](/packages/types)                           | [![npm](https://img.shields.io/npm/v/@0x/types.svg)](https://www.npmjs.com/package/@0x/types)                           | Shared type declarations                                                                                                  |
-| [`@0x/typescript-typings`](/packages/typescript-typings) | [![npm](https://img.shields.io/npm/v/@0x/typescript-typings.svg)](https://www.npmjs.com/package/@0x/typescript-typings) | Repository of types for external packages                                                                                 |
-| [`@0x/utils`](/packages/utils)                           | [![npm](https://img.shields.io/npm/v/@0x/utils.svg)](https://www.npmjs.com/package/@0x/utils)                           | Shared utilities                                                                                                          |
-| [`@0x/web3-wrapper`](/packages/web3-wrapper)             | [![npm](https://img.shields.io/npm/v/@0x/web3-wrapper.svg)](https://www.npmjs.com/package/@0x/web3-wrapper)             | Web3 wrapper                                                                                                              |
+| Package                                                  | Version                                                                                                                 | Description                                                                                                              |
+| -------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------ |
+| [`0x.js`](/packages/0x.js)                               | [![npm](https://img.shields.io/npm/v/0x.js.svg)](https://www.npmjs.com/package/0x.js)                                   | A Javascript library for interacting with the 0x protocol                                                                |
+| [`@0x/abi-gen`](/packages/abi-gen)                       | [![npm](https://img.shields.io/npm/v/@0x/abi-gen.svg)](https://www.npmjs.com/package/@0x/abi-gen)                       | Tool to generate TS wrappers from smart contract ABIs                                                                    |
+| [`@0x/abi-gen-wrappers`](/packages/abi-gen-wrappers)     | [![npm](https://img.shields.io/npm/v/@0x/abi-gen-wrappers.svg)](https://www.npmjs.com/package/@0x/abi-gen-wrappers)     | Low-level 0x smart contract wrappers generated using @0x/abi-gen                                                         |
+| [`@0x/assert`](/packages/assert)                         | [![npm](https://img.shields.io/npm/v/@0x/assert.svg)](https://www.npmjs.com/package/@0x/assert)                         | Type and schema assertions used by our packages                                                                          |
+| [`@0x/asset-buyer`](/packages/asset-buyer)               | [![npm](https://img.shields.io/npm/v/@0x/asset-buyer.svg)](https://www.npmjs.com/package/@0x/asset-buyer)               | Convenience package for discovering and buying assets with Ether                                                         |
+| [`@0x/base-contract`](/packages/base-contract)           | [![npm](https://img.shields.io/npm/v/@0x/base-contract.svg)](https://www.npmjs.com/package/@0x/base-contract)           | BaseContract used by auto-generated `abi-gen` wrapper contracts                                                          |
+| [`@0x/connect`](/packages/connect)                       | [![npm](https://img.shields.io/npm/v/@0x/connect.svg)](https://www.npmjs.com/package/@0x/connect)                       | A Javascript library for interacting with the Standard Relayer API                                                       |
+| [`@0x/contract-addresses`](/packages/contract-addresses) | [![npm](https://img.shields.io/npm/v/@0x/contract-addresses.svg)](https://www.npmjs.com/package/@0x/contract-addresses) | Used to get known addresses of deployed 0x contracts                                                                     |
+| [`@0x/contract-artifacts`](/packages/contract-artifacts) | [![npm](https://img.shields.io/npm/v/@0x/contract-artifacts.svg)](https://www.npmjs.com/package/@0x/contract-artifacts) | 0x smart contract compilation artifacts                                                                                  |
+| [`@0x/contract-wrappers`](/packages/contract-wrappers)   | [![npm](https://img.shields.io/npm/v/@0x/contract-wrappers.svg)](https://www.npmjs.com/package/@0x/contract-wrappers)   | Smart TS wrappers for 0x smart contracts                                                                                 |
+| [`@0x/dev-utils`](/packages/dev-utils)                   | [![npm](https://img.shields.io/npm/v/@0x/dev-utils.svg)](https://www.npmjs.com/package/@0x/dev-utils)                   | Dev utils to be shared across 0x projects and packages                                                                   |
+| [`@0x/fill-scenarios`](/packages/fill-scenarios)         | [![npm](https://img.shields.io/npm/v/@0x/fill-scenarios.svg)](https://www.npmjs.com/package/@0x/fill-scenarios)         | 0x order fill scenario generation                                                                                        |
+| [`@0x/json-schemas`](/packages/json-schemas)             | [![npm](https://img.shields.io/npm/v/@0x/json-schemas.svg)](https://www.npmjs.com/package/@0x/json-schemas)             | 0x-related json schemas                                                                                                  |
+| [`@0x/migrations`](/packages/migrations)                 | [![npm](https://img.shields.io/npm/v/@0x/migrations.svg)](https://www.npmjs.com/package/@0x/migrations)                 | 0x smart contract migrations                                                                                             |
+| [`@0x/order-utils`](/packages/order-utils)               | [![npm](https://img.shields.io/npm/v/@0x/order-utils.svg)](https://www.npmjs.com/package/@0x/order-utils)               | A set of utilities for generating, parsing, signing and validating 0x orders                                             |
+| [`@0x/order-watcher`](/packages/order-watcher)           | [![npm](https://img.shields.io/npm/v/@0x/order-watcher.svg)](https://www.npmjs.com/package/@0x/order-watcher)           | An order watcher daemon that watches for order validity                                                                  |
+| [`@0x/react-docs`](/packages/react-docs)                 | [![npm](https://img.shields.io/npm/v/@0x/react-docs.svg)](https://www.npmjs.com/package/@0x/react-docs)                 | React documentation component for rendering TypeDoc & Doxity generated JSON                                              |
+| [`@0x/react-shared`](/packages/react-shared)             | [![npm](https://img.shields.io/npm/v/@0x/react-shared.svg)](https://www.npmjs.com/package/@0x/react-shared)             | 0x shared react components                                                                                               |
+| [`@0x/sol-compiler`](/packages/sol-compiler)             | [![npm](https://img.shields.io/npm/v/@0x/sol-compiler.svg)](https://www.npmjs.com/package/@0x/sol-compiler)             | A thin wrapper around Solc.js that outputs artifacts, resolves imports, only re-compiles when needed, and other niceties |
+| [`@0x/sol-cov`](/packages/sol-cov)                       | [![npm](https://img.shields.io/npm/v/@0x/sol-cov.svg)](https://www.npmjs.com/package/@0x/sol-cov)                       | Solidity test coverage tool                                                                                              |
+| [`@0x/sol-doc`](/packages/sol-doc)                       | [![npm](https://img.shields.io/npm/v/@0x/sol-doc.svg)](https://www.npmjs.com/package/@0x/sol-doc)                       | Solidity documentation generator                                                                                         |
+| [`@0x/sol-resolver`](/packages/sol-resolver)             | [![npm](https://img.shields.io/npm/v/@0x/sol-resolver.svg)](https://www.npmjs.com/package/@0x/sol-resolver)             | Import resolver for smart contracts dependencies                                                                         |
+| [`@0x/sra-spec`](/packages/sra-spec)                     | [![npm](https://img.shields.io/npm/v/@0x/sra-spec.svg)](https://www.npmjs.com/package/@0x/sra-spec)                     | OpenAPI specification for the standard relayer API                                                                       |
+| [`@0x/subproviders`](/packages/subproviders)             | [![npm](https://img.shields.io/npm/v/@0x/subproviders.svg)](https://www.npmjs.com/package/@0x/subproviders)             | Useful web3 subproviders (e.g. LedgerSubprovider)                                                                        |
+| [`@0x/tslint-config`](/packages/tslint-config)           | [![npm](https://img.shields.io/npm/v/@0x/tslint-config.svg)](https://www.npmjs.com/package/@0x/tslint-config)           | Custom 0x development TSLint rules                                                                                       |
+| [`@0x/types`](/packages/types)                           | [![npm](https://img.shields.io/npm/v/@0x/types.svg)](https://www.npmjs.com/package/@0x/types)                           | Shared type declarations                                                                                                 |
+| [`@0x/typescript-typings`](/packages/typescript-typings) | [![npm](https://img.shields.io/npm/v/@0x/typescript-typings.svg)](https://www.npmjs.com/package/@0x/typescript-typings) | Repository of types for external packages                                                                                |
+| [`@0x/utils`](/packages/utils)                           | [![npm](https://img.shields.io/npm/v/@0x/utils.svg)](https://www.npmjs.com/package/@0x/utils)                           | Shared utilities                                                                                                         |
+| [`@0x/web3-wrapper`](/packages/web3-wrapper)             | [![npm](https://img.shields.io/npm/v/@0x/web3-wrapper.svg)](https://www.npmjs.com/package/@0x/web3-wrapper)             | Web3 wrapper                                                                                                             |

 ### Private Packages

@@ -86,6 +94,10 @@ We strongly recommend that the community help us make improvements and determine

 Make sure you are using Yarn v1.9.4. To install using brew:

+```bash
+brew install yarn@1.9.4
+```
+
 Then install dependencies

 ```bash
--- a/package.json
+++ b/package.json
@@ -50,7 +50,7 @@
            },
            {
                "path": "packages/instant/public/main.bundle.js",
-                "maxSize": "500kB"
+                "maxSize": "1000kB"
            }
        ],
        "ci": {
--- a/packages/0x.js/CHANGELOG.json
+++ b/packages/0x.js/CHANGELOG.json
@@ -1,4 +1,22 @@
 [
+    {
+        "timestamp": 1542028948,
+        "version": "2.0.2",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "version": "2.0.1",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ],
+        "timestamp": 1541740904
+    },
    {
        "version": "2.0.0",
        "changes": [
--- a/packages/0x.js/CHANGELOG.md
+++ b/packages/0x.js/CHANGELOG.md
@@ -5,6 +5,14 @@ Edit the package's CHANGELOG.json file only.

 CHANGELOG

+## v2.0.2 - _November 12, 2018_
+
+    * Dependencies updated
+
+## v2.0.1 - _November 9, 2018_
+
+    * Dependencies updated
+
 ## v2.0.0 - _October 18, 2018_

    * Add support for `eth_signTypedData`. (#1102)
--- a/packages/0x.js/package.json
+++ b/packages/0x.js/package.json
@@ -1,6 +1,6 @@
 {
    "name": "0x.js",
-    "version": "2.0.0",
+    "version": "2.0.2",
    "engines": {
        "node": ">=6.12"
    },
@@ -18,7 +18,7 @@
        "build": "yarn build:all",
        "build:ci": "yarn build:commonjs",
        "build:all": "run-p build:umd:prod build:commonjs",
-        "lint": "tslint --project . --exclude **/src/generated_contract_wrappers/**/*",
+        "lint": "tslint --format stylish --project .",
        "test:circleci": "run-s test:coverage",
        "rebuild_and_test": "run-s build test",
        "test:coverage": "nyc npm run test --all && yarn coverage:report:lcov",
@@ -42,13 +42,12 @@
    },
    "license": "Apache-2.0",
    "devDependencies": {
-        "@0x/abi-gen": "^1.0.14",
-        "@0x/abi-gen-wrappers": "^1.0.1",
-        "@0x/contract-addresses": "^1.0.1",
-        "@0x/dev-utils": "^1.0.13",
-        "@0x/migrations": "^2.0.0",
-        "@0x/monorepo-scripts": "^1.0.12",
-        "@0x/tslint-config": "^1.0.9",
+        "@0x/abi-gen": "^1.0.15",
+        "@0x/abi-gen-wrappers": "^1.0.3",
+        "@0x/contract-addresses": "^1.1.0",
+        "@0x/dev-utils": "^1.0.15",
+        "@0x/migrations": "^2.0.2",
+        "@0x/tslint-config": "^1.0.10",
        "@types/lodash": "4.14.104",
        "@types/mocha": "^2.2.42",
        "@types/node": "*",
@@ -74,18 +73,18 @@
        "webpack": "^4.20.2"
    },
    "dependencies": {
-        "@0x/assert": "^1.0.14",
-        "@0x/base-contract": "^3.0.2",
-        "@0x/contract-wrappers": "^3.0.0",
-        "@0x/order-utils": "^2.0.0",
-        "@0x/order-watcher": "^2.2.0",
-        "@0x/subproviders": "^2.1.0",
-        "@0x/types": "^1.2.0",
-        "@0x/typescript-typings": "^3.0.3",
-        "@0x/utils": "^2.0.3",
-        "@0x/web3-wrapper": "^3.1.0",
+        "@0x/assert": "^1.0.16",
+        "@0x/base-contract": "^3.0.4",
+        "@0x/contract-wrappers": "^4.0.0",
+        "@0x/order-utils": "^3.0.0",
+        "@0x/order-watcher": "^2.2.2",
+        "@0x/subproviders": "^2.1.2",
+        "@0x/types": "^1.2.1",
+        "@0x/typescript-typings": "^3.0.4",
+        "@0x/utils": "^2.0.4",
+        "@0x/web3-wrapper": "^3.1.2",
        "@types/web3-provider-engine": "^14.0.0",
-        "ethereum-types": "^1.1.1",
+        "ethereum-types": "^1.1.2",
        "ethers": "~4.0.4",
        "lodash": "^4.17.5",
        "web3-provider-engine": "14.0.6"
--- a/packages/abi-gen-wrappers/CHANGELOG.json
+++ b/packages/abi-gen-wrappers/CHANGELOG.json
@@ -1,4 +1,22 @@
 [
+    {
+        "timestamp": 1542028948,
+        "version": "1.0.3",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "version": "1.0.2",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ],
+        "timestamp": 1541740904
+    },
    {
        "timestamp": 1539871071,
        "version": "1.0.1",
--- a/packages/abi-gen-wrappers/CHANGELOG.md
+++ b/packages/abi-gen-wrappers/CHANGELOG.md
@@ -5,6 +5,14 @@ Edit the package's CHANGELOG.json file only.

 CHANGELOG

+## v1.0.3 - _November 12, 2018_
+
+    * Dependencies updated
+
+## v1.0.2 - _November 9, 2018_
+
+    * Dependencies updated
+
 ## v1.0.1 - _October 18, 2018_

    * Dependencies updated
--- a/packages/abi-gen-wrappers/package.json
+++ b/packages/abi-gen-wrappers/package.json
@@ -1,6 +1,6 @@
 {
    "name": "@0x/abi-gen-wrappers",
-    "version": "1.0.1",
+    "version": "1.0.3",
    "engines": {
        "node": ">=6.12"
    },
@@ -12,7 +12,7 @@
    "scripts": {
        "build": "yarn pre_build && tsc -b",
        "build:ci": "yarn build",
-        "lint": "tslint --project .",
+        "lint": "tslint --format stylish --project .",
        "pre_build": "yarn generate_contract_wrappers",
        "clean": "shx rm -rf lib wrappers",
        "generate_contract_wrappers": "abi-gen --abis  ${npm_package_config_abis} --template ../contract_templates/contract.handlebars --partials '../contract_templates/partials/**/*.handlebars' --output src/generated-wrappers --backend ethers"
@@ -30,17 +30,17 @@
    },
    "homepage": "https://github.com/0xProject/0x-monorepo/packages/abi-gen-wrappers/README.md",
    "devDependencies": {
-        "@0x/abi-gen": "^1.0.14",
-        "@0x/tslint-config": "^1.0.9",
-        "@0x/utils": "^2.0.3",
-        "@0x/web3-wrapper": "^3.1.0",
-        "ethereum-types": "^1.1.1",
+        "@0x/abi-gen": "^1.0.15",
+        "@0x/tslint-config": "^1.0.10",
+        "@0x/utils": "^2.0.4",
+        "@0x/web3-wrapper": "^3.1.2",
+        "ethereum-types": "^1.1.2",
        "ethers": "~4.0.4",
        "lodash": "^4.17.5",
        "shx": "^0.2.2"
    },
    "dependencies": {
-        "@0x/base-contract": "^3.0.2"
+        "@0x/base-contract": "^3.0.4"
    },
    "publishConfig": {
        "access": "public"
--- a/packages/abi-gen/CHANGELOG.json
+++ b/packages/abi-gen/CHANGELOG.json
@@ -1,4 +1,13 @@
 [
+    {
+        "version": "1.0.15",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ],
+        "timestamp": 1541740904
+    },
    {
        "timestamp": 1539871071,
        "version": "1.0.14",
--- a/packages/abi-gen/CHANGELOG.md
+++ b/packages/abi-gen/CHANGELOG.md
@@ -5,6 +5,10 @@ Edit the package's CHANGELOG.json file only.

 CHANGELOG

+## v1.0.15 - _November 9, 2018_
+
+    * Dependencies updated
+
 ## v1.0.14 - _October 18, 2018_

    * Dependencies updated
--- a/packages/abi-gen/package.json
+++ b/packages/abi-gen/package.json
@@ -1,6 +1,6 @@
 {
    "name": "@0x/abi-gen",
-    "version": "1.0.14",
+    "version": "1.0.15",
    "engines": {
        "node": ">=6.12"
    },
@@ -8,7 +8,7 @@
    "main": "lib/src/index.js",
    "types": "lib/src/index.d.ts",
    "scripts": {
-        "lint": "tslint --project .",
+        "lint": "tslint --format stylish --project .",
        "clean": "shx rm -rf lib",
        "build": "tsc -b",
        "build:ci": "yarn build",
@@ -31,10 +31,10 @@
    },
    "homepage": "https://github.com/0xProject/0x-monorepo/packages/abi-gen/README.md",
    "dependencies": {
-        "@0x/typescript-typings": "^3.0.3",
-        "@0x/utils": "^2.0.3",
+        "@0x/typescript-typings": "^3.0.4",
+        "@0x/utils": "^2.0.4",
        "chalk": "^2.3.0",
-        "ethereum-types": "^1.1.1",
+        "ethereum-types": "^1.1.2",
        "glob": "^7.1.2",
        "handlebars": "^4.0.11",
        "lodash": "^4.17.5",
@@ -45,7 +45,7 @@
        "yargs": "^10.0.3"
    },
    "devDependencies": {
-        "@0x/tslint-config": "^1.0.9",
+        "@0x/tslint-config": "^1.0.10",
        "@types/glob": "5.0.35",
        "@types/handlebars": "^4.0.36",
        "@types/mkdirp": "^0.5.1",
--- a/packages/assert/CHANGELOG.json
+++ b/packages/assert/CHANGELOG.json
@@ -1,4 +1,22 @@
 [
+    {
+        "timestamp": 1542028948,
+        "version": "1.0.16",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "version": "1.0.15",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ],
+        "timestamp": 1541740904
+    },
    {
        "timestamp": 1539871071,
        "version": "1.0.14",
--- a/packages/assert/CHANGELOG.md
+++ b/packages/assert/CHANGELOG.md
@@ -5,6 +5,14 @@ Edit the package's CHANGELOG.json file only.

 CHANGELOG

+## v1.0.16 - _November 12, 2018_
+
+    * Dependencies updated
+
+## v1.0.15 - _November 9, 2018_
+
+    * Dependencies updated
+
 ## v1.0.14 - _October 18, 2018_

    * Dependencies updated
--- a/packages/assert/package.json
+++ b/packages/assert/package.json
@@ -1,6 +1,6 @@
 {
    "name": "@0x/assert",
-    "version": "1.0.14",
+    "version": "1.0.16",
    "engines": {
        "node": ">=6.12"
    },
@@ -11,7 +11,7 @@
        "build": "tsc -b",
        "build:ci": "yarn build",
        "clean": "shx rm -rf lib test_temp",
-        "lint": "tslint --project .",
+        "lint": "tslint --format stylish --project .",
        "run_mocha": "mocha --require source-map-support/register --require make-promises-safe lib/test/**/*_test.js --exit",
        "test": "yarn run_mocha",
        "rebuild_and_test": "run-s clean build test",
@@ -29,7 +29,7 @@
    },
    "homepage": "https://github.com/0xProject/0x-monorepo/packages/assert/README.md",
    "devDependencies": {
-        "@0x/tslint-config": "^1.0.9",
+        "@0x/tslint-config": "^1.0.10",
        "@types/lodash": "4.14.104",
        "@types/mocha": "^2.2.42",
        "@types/valid-url": "^1.0.2",
@@ -44,9 +44,9 @@
        "typescript": "3.0.1"
    },
    "dependencies": {
-        "@0x/json-schemas": "^2.0.0",
-        "@0x/typescript-typings": "^3.0.3",
-        "@0x/utils": "^2.0.3",
+        "@0x/json-schemas": "^2.1.0",
+        "@0x/typescript-typings": "^3.0.4",
+        "@0x/utils": "^2.0.4",
        "lodash": "^4.17.5",
        "valid-url": "^1.0.9"
    },
--- a/packages/asset-buyer/CHANGELOG.json
+++ b/packages/asset-buyer/CHANGELOG.json
@@ -1,4 +1,46 @@
 [
+    {
+        "timestamp": 1542028948,
+        "version": "2.2.1",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "version": "2.2.0",
+        "changes": [
+            {
+                "note": "`getAssetBuyerForProvidedOrders` factory function now takes 3 args instead of 4",
+                "pr": 1187
+            },
+            {
+                "note":
+                    "the `OrderProvider` now requires a new method `getAvailableMakerAssetDatasAsync` and the `StandardRelayerAPIOrderProvider` requires the network id at init.",
+                "pr": 1203
+            },
+            {
+                "note": "No longer require that provided orders all have the same maker and taker asset data",
+                "pr": 1197
+            },
+            {
+                "note":
+                    "Fix bug where `BuyQuoteInfo` objects could return `totalEthAmount` and `feeEthAmount` that were not whole numbers",
+                "pr": 1207
+            },
+            {
+                "note":
+                    "Fix bug where default values for `AssetBuyer` public facing methods could get overriden by `undefined` values",
+                "pr": 1207
+            },
+            {
+                "note": "Lower default expiry buffer from 5 minutes to 2 minutes",
+                "pr": 1217
+            }
+        ],
+        "timestamp": 1541740904
+    },
    {
        "version": "2.1.0",
        "changes": [
@@ -25,6 +67,10 @@
            {
                "note": "Add missing types to public interface",
                "pr": 1139
+            },
+            {
+                "note": "Throw `SignatureRequestDenied` and `TransactionValueTooLow` errors when executing buy",
+                "pr": 1147
            }
        ],
        "timestamp": 1539871071
--- a/packages/asset-buyer/CHANGELOG.md
+++ b/packages/asset-buyer/CHANGELOG.md
@@ -5,6 +5,19 @@ Edit the package's CHANGELOG.json file only.

 CHANGELOG

+## v2.2.1 - _November 12, 2018_
+
+    * Dependencies updated
+
+## v2.2.0 - _November 9, 2018_
+
+    * `getAssetBuyerForProvidedOrders` factory function now takes 3 args instead of 4 (#1187)
+    * the `OrderProvider` now requires a new method `getAvailableMakerAssetDatasAsync` and the `StandardRelayerAPIOrderProvider` requires the network id at init. (#1203)
+    * No longer require that provided orders all have the same maker and taker asset data (#1197)
+    * Fix bug where `BuyQuoteInfo` objects could return `totalEthAmount` and `feeEthAmount` that were not whole numbers (#1207)
+    * Fix bug where default values for `AssetBuyer` public facing methods could get overriden by `undefined` values (#1207)
+    * Lower default expiry buffer from 5 minutes to 2 minutes (#1217)
+
 ## v2.1.0 - _October 18, 2018_

    * Add `gasLimit` and `gasPrice` as optional properties on `BuyQuoteExecutionOpts`
@@ -13,6 +26,7 @@ CHANGELOG
    * Add `gasLimit` and `gasPrice` as optional properties on `BuyQuoteExecutionOpts` (#1116)
    * Add `docs:json` command to package.json (#1139)
    * Add missing types to public interface (#1139)
+    * Throw `SignatureRequestDenied` and `TransactionValueTooLow` errors when executing buy (#1147)

 ## v2.0.0 - _October 4, 2018_

--- a/packages/asset-buyer/package.json
+++ b/packages/asset-buyer/package.json
@@ -1,6 +1,6 @@
 {
    "name": "@0x/asset-buyer",
-    "version": "2.1.0",
+    "version": "2.2.1",
    "engines": {
        "node": ">=6.12"
    },
@@ -10,7 +10,7 @@
    "scripts": {
        "build": "yarn tsc -b",
        "build:ci": "yarn build",
-        "lint": "tslint --project .",
+        "lint": "tslint --format stylish --project .",
        "test": "yarn run_mocha",
        "rebuild_and_test": "run-s clean build test",
        "test:coverage": "nyc npm run test --all && yarn coverage:report:lcov",
@@ -36,21 +36,21 @@
    },
    "homepage": "https://github.com/0xProject/0x-monorepo/packages/asset-buyer/README.md",
    "dependencies": {
-        "@0x/assert": "^1.0.14",
-        "@0x/connect": "^3.0.2",
-        "@0x/contract-wrappers": "^3.0.0",
-        "@0x/json-schemas": "^2.0.0",
-        "@0x/order-utils": "^2.0.0",
-        "@0x/subproviders": "^2.1.0",
-        "@0x/types": "^1.2.0",
-        "@0x/typescript-typings": "^3.0.3",
-        "@0x/utils": "^2.0.3",
-        "@0x/web3-wrapper": "^3.1.0",
-        "ethereum-types": "^1.1.1",
+        "@0x/assert": "^1.0.16",
+        "@0x/connect": "^3.0.4",
+        "@0x/contract-wrappers": "^4.0.0",
+        "@0x/json-schemas": "^2.1.0",
+        "@0x/order-utils": "^3.0.0",
+        "@0x/subproviders": "^2.1.2",
+        "@0x/types": "^1.2.1",
+        "@0x/typescript-typings": "^3.0.4",
+        "@0x/utils": "^2.0.4",
+        "@0x/web3-wrapper": "^3.1.2",
+        "ethereum-types": "^1.1.2",
        "lodash": "^4.17.10"
    },
    "devDependencies": {
-        "@0x/tslint-config": "^1.0.9",
+        "@0x/tslint-config": "^1.0.10",
        "@types/lodash": "^4.14.116",
        "@types/mocha": "^2.2.42",
        "@types/node": "*",
--- a/packages/asset-buyer/src/asset_buyer.ts
+++ b/packages/asset-buyer/src/asset_buyer.ts
@@ -1,4 +1,4 @@
-import { ContractWrappers } from '@0x/contract-wrappers';
+import { ContractWrappers, ContractWrappersError, ForwarderWrapperError } from '@0x/contract-wrappers';
 import { schemas } from '@0x/json-schemas';
 import { SignedOrder } from '@0x/order-utils';
 import { ObjectMap } from '@0x/types';
@@ -52,16 +52,12 @@ export class AssetBuyer {
    public static getAssetBuyerForProvidedOrders(
        provider: Provider,
        orders: SignedOrder[],
-        feeOrders: SignedOrder[] = [],
        options: Partial<AssetBuyerOpts> = {},
    ): AssetBuyer {
        assert.isWeb3Provider('provider', provider);
        assert.doesConformToSchema('orders', orders, schemas.signedOrdersSchema);
-        assert.doesConformToSchema('feeOrders', feeOrders, schemas.signedOrdersSchema);
-        assert.areValidProvidedOrders('orders', orders);
-        assert.areValidProvidedOrders('feeOrders', feeOrders);
        assert.assert(orders.length !== 0, `Expected orders to contain at least one order`);
-        const orderProvider = new BasicOrderProvider(_.concat(orders, feeOrders));
+        const orderProvider = new BasicOrderProvider(orders);
        const assetBuyer = new AssetBuyer(provider, orderProvider, options);
        return assetBuyer;
    }
@@ -80,7 +76,8 @@ export class AssetBuyer {
    ): AssetBuyer {
        assert.isWeb3Provider('provider', provider);
        assert.isWebUri('sraApiUrl', sraApiUrl);
-        const orderProvider = new StandardRelayerAPIOrderProvider(sraApiUrl);
+        const networkId = options.networkId || constants.DEFAULT_ASSET_BUYER_OPTS.networkId;
+        const orderProvider = new StandardRelayerAPIOrderProvider(sraApiUrl, networkId);
        const assetBuyer = new AssetBuyer(provider, orderProvider, options);
        return assetBuyer;
    }
@@ -93,10 +90,11 @@ export class AssetBuyer {
     * @return  An instance of AssetBuyer
     */
    constructor(provider: Provider, orderProvider: OrderProvider, options: Partial<AssetBuyerOpts> = {}) {
-        const { networkId, orderRefreshIntervalMs, expiryBufferSeconds } = {
-            ...constants.DEFAULT_ASSET_BUYER_OPTS,
-            ...options,
-        };
+        const { networkId, orderRefreshIntervalMs, expiryBufferSeconds } = _.merge(
+            {},
+            constants.DEFAULT_ASSET_BUYER_OPTS,
+            options,
+        );
        assert.isWeb3Provider('provider', provider);
        assert.isValidOrderProvider('orderProvider', orderProvider);
        assert.isNumber('networkId', networkId);
@@ -125,19 +123,25 @@ export class AssetBuyer {
        assetBuyAmount: BigNumber,
        options: Partial<BuyQuoteRequestOpts> = {},
    ): Promise<BuyQuote> {
-        const { feePercentage, shouldForceOrderRefresh, slippagePercentage } = {
-            ...constants.DEFAULT_BUY_QUOTE_REQUEST_OPTS,
-            ...options,
-        };
+        const { feePercentage, shouldForceOrderRefresh, slippagePercentage } = _.merge(
+            {},
+            constants.DEFAULT_BUY_QUOTE_REQUEST_OPTS,
+            options,
+        );
        assert.isString('assetData', assetData);
        assert.isBigNumber('assetBuyAmount', assetBuyAmount);
        assert.isValidPercentage('feePercentage', feePercentage);
        assert.isBoolean('shouldForceOrderRefresh', shouldForceOrderRefresh);
        assert.isNumber('slippagePercentage', slippagePercentage);
        const zrxTokenAssetData = this._getZrxTokenAssetDataOrThrow();
+        const isMakerAssetZrxToken = assetData === zrxTokenAssetData;
+        // get the relevant orders for the makerAsset and fees
+        // if the requested assetData is ZRX, don't get the fee info
        const [ordersAndFillableAmounts, feeOrdersAndFillableAmounts] = await Promise.all([
            this._getOrdersAndFillableAmountsAsync(assetData, shouldForceOrderRefresh),
-            this._getOrdersAndFillableAmountsAsync(zrxTokenAssetData, shouldForceOrderRefresh),
+            isMakerAssetZrxToken
+                ? Promise.resolve(constants.EMPTY_ORDERS_AND_FILLABLE_AMOUNTS)
+                : this._getOrdersAndFillableAmountsAsync(zrxTokenAssetData, shouldForceOrderRefresh),
            shouldForceOrderRefresh,
        ]);
        if (ordersAndFillableAmounts.orders.length === 0) {
@@ -149,6 +153,7 @@ export class AssetBuyer {
            assetBuyAmount,
            feePercentage,
            slippagePercentage,
+            isMakerAssetZrxToken,
        );
        return buyQuote;
    }
@@ -183,10 +188,11 @@ export class AssetBuyer {
        buyQuote: BuyQuote,
        options: Partial<BuyQuoteExecutionOpts> = {},
    ): Promise<string> {
-        const { ethAmount, takerAddress, feeRecipient, gasLimit, gasPrice } = {
-            ...constants.DEFAULT_BUY_QUOTE_EXECUTION_OPTS,
-            ...options,
-        };
+        const { ethAmount, takerAddress, feeRecipient, gasLimit, gasPrice } = _.merge(
+            {},
+            constants.DEFAULT_BUY_QUOTE_EXECUTION_OPTS,
+            options,
+        );
        assert.isValidBuyQuote('buyQuote', buyQuote);
        if (!_.isUndefined(ethAmount)) {
            assert.isBigNumber('ethAmount', ethAmount);
@@ -195,6 +201,12 @@ export class AssetBuyer {
            assert.isETHAddressHex('takerAddress', takerAddress);
        }
        assert.isETHAddressHex('feeRecipient', feeRecipient);
+        if (!_.isUndefined(gasLimit)) {
+            assert.isNumber('gasLimit', gasLimit);
+        }
+        if (!_.isUndefined(gasPrice)) {
+            assert.isBigNumber('gasPrice', gasPrice);
+        }
        const { orders, feeOrders, feePercentage, assetBuyAmount, worstCaseQuoteInfo } = buyQuote;
        // if no takerAddress is provided, try to get one from the provider
        let finalTakerAddress;
@@ -210,21 +222,41 @@ export class AssetBuyer {
                throw new Error(AssetBuyerError.NoAddressAvailable);
            }
        }
-        // if no ethAmount is provided, default to the worst ethAmount from buyQuote
-        const txHash = await this._contractWrappers.forwarder.marketBuyOrdersWithEthAsync(
-            orders,
-            assetBuyAmount,
-            finalTakerAddress,
-            ethAmount || worstCaseQuoteInfo.totalEthAmount,
-            feeOrders,
-            feePercentage,
-            feeRecipient,
-            {
-                gasLimit,
-                gasPrice,
-            },
-        );
-        return txHash;
+        try {
+            // if no ethAmount is provided, default to the worst ethAmount from buyQuote
+            const txHash = await this._contractWrappers.forwarder.marketBuyOrdersWithEthAsync(
+                orders,
+                assetBuyAmount,
+                finalTakerAddress,
+                ethAmount || worstCaseQuoteInfo.totalEthAmount,
+                feeOrders,
+                feePercentage,
+                feeRecipient,
+                {
+                    gasLimit,
+                    gasPrice,
+                    shouldValidate: true,
+                },
+            );
+            return txHash;
+        } catch (err) {
+            if (_.includes(err.message, ContractWrappersError.SignatureRequestDenied)) {
+                throw new Error(AssetBuyerError.SignatureRequestDenied);
+            } else if (_.includes(err.message, ForwarderWrapperError.CompleteFillFailed)) {
+                throw new Error(AssetBuyerError.TransactionValueTooLow);
+            } else {
+                throw err;
+            }
+        }
+    }
+    /**
+     * Get the asset data of all assets that are purchaseable with ether token (wETH) in the order provider passed in at init.
+     *
+     * @return  An array of asset data strings that can be purchased using wETH.
+     */
+    public async getAvailableAssetDatasAsync(): Promise<string[]> {
+        const etherTokenAssetData = this._getEtherTokenAssetDataOrThrow();
+        return this.orderProvider.getAvailableMakerAssetDatasAsync(etherTokenAssetData);
    }
    /**
     * Grab orders from the map, if there is a miss or it is time to refresh, fetch and process the orders
--- a/packages/asset-buyer/src/constants.ts
+++ b/packages/asset-buyer/src/constants.ts
@@ -1,6 +1,7 @@
+import { SignedOrder } from '@0x/types';
 import { BigNumber } from '@0x/utils';

-import { AssetBuyerOpts, BuyQuoteExecutionOpts, BuyQuoteRequestOpts } from './types';
+import { AssetBuyerOpts, BuyQuoteExecutionOpts, BuyQuoteRequestOpts, OrdersAndFillableAmounts } from './types';

 const NULL_ADDRESS = '0x0000000000000000000000000000000000000000';
 const MAINNET_NETWORK_ID = 1;
@@ -8,7 +9,7 @@ const MAINNET_NETWORK_ID = 1;
 const DEFAULT_ASSET_BUYER_OPTS: AssetBuyerOpts = {
    networkId: MAINNET_NETWORK_ID,
    orderRefreshIntervalMs: 10000, // 10 seconds
-    expiryBufferSeconds: 300, // 5 minutes
+    expiryBufferSeconds: 120, // 2 minutes
 };

 const DEFAULT_BUY_QUOTE_REQUEST_OPTS: BuyQuoteRequestOpts = {
@@ -22,6 +23,11 @@ const DEFAULT_BUY_QUOTE_EXECUTION_OPTS: BuyQuoteExecutionOpts = {
    feeRecipient: NULL_ADDRESS,
 };

+const EMPTY_ORDERS_AND_FILLABLE_AMOUNTS: OrdersAndFillableAmounts = {
+    orders: [] as SignedOrder[],
+    remainingFillableMakerAssetAmounts: [] as BigNumber[],
+};
+
 export const constants = {
    ZERO_AMOUNT: new BigNumber(0),
    NULL_ADDRESS,
@@ -30,5 +36,5 @@ export const constants = {
    DEFAULT_ASSET_BUYER_OPTS,
    DEFAULT_BUY_QUOTE_EXECUTION_OPTS,
    DEFAULT_BUY_QUOTE_REQUEST_OPTS,
-    MAX_PER_PAGE: 10000,
+    EMPTY_ORDERS_AND_FILLABLE_AMOUNTS,
 };
--- a/packages/asset-buyer/src/order_providers/basic_order_provider.ts
+++ b/packages/asset-buyer/src/order_providers/basic_order_provider.ts
@@ -29,4 +29,13 @@ export class BasicOrderProvider implements OrderProvider {
        });
        return { orders };
    }
+    /**
+     * Given a taker asset data string, return all availabled paired maker asset data strings.
+     * @param   takerAssetData   A string representing the taker asset data.
+     * @return  An array of asset data strings that can be purchased using takerAssetData.
+     */
+    public async getAvailableMakerAssetDatasAsync(takerAssetData: string): Promise<string[]> {
+        const ordersWithTakerAssetData = _.filter(this.orders, { takerAssetData });
+        return _.map(ordersWithTakerAssetData, order => order.makerAssetData);
+    }
 }
--- a/packages/asset-buyer/src/order_providers/standard_relayer_api_order_provider.ts
+++ b/packages/asset-buyer/src/order_providers/standard_relayer_api_order_provider.ts
@@ -1,5 +1,5 @@
 import { HttpClient } from '@0x/connect';
-import { APIOrder, OrderbookResponse } from '@0x/types';
+import { APIOrder, AssetPairsResponse, OrderbookResponse } from '@0x/types';
 import * as _ from 'lodash';

 import {
@@ -14,6 +14,7 @@ import { orderUtils } from '../utils/order_utils';

 export class StandardRelayerAPIOrderProvider implements OrderProvider {
    public readonly apiUrl: string;
+    public readonly networkId: number;
    private readonly _sraClient: HttpClient;
    /**
     * Given an array of APIOrder objects from a standard relayer api, return an array
@@ -30,7 +31,7 @@ export class StandardRelayerAPIOrderProvider implements OrderProvider {
                'remainingTakerAssetAmount',
                order.takerAssetAmount,
            );
-            const remainingFillableMakerAssetAmount = orderUtils.calculateRemainingMakerAssetAmount(
+            const remainingFillableMakerAssetAmount = orderUtils.getRemainingMakerAmount(
                order,
                remainingFillableTakerAssetAmount,
            );
@@ -44,12 +45,15 @@ export class StandardRelayerAPIOrderProvider implements OrderProvider {
    }
    /**
     * Instantiates a new StandardRelayerAPIOrderProvider instance
-     * @param   apiUrl  The standard relayer API base HTTP url you would like to source orders from.
+     * @param   apiUrl      The standard relayer API base HTTP url you would like to source orders from.
+     * @param   networkId   The ethereum network id.
     * @return  An instance of StandardRelayerAPIOrderProvider
     */
-    constructor(apiUrl: string) {
+    constructor(apiUrl: string, networkId: number) {
        assert.isWebUri('apiUrl', apiUrl);
+        assert.isNumber('networkId', networkId);
        this.apiUrl = apiUrl;
+        this.networkId = networkId;
        this._sraClient = new HttpClient(apiUrl);
    }
    /**
@@ -59,9 +63,9 @@ export class StandardRelayerAPIOrderProvider implements OrderProvider {
     */
    public async getOrdersAsync(orderProviderRequest: OrderProviderRequest): Promise<OrderProviderResponse> {
        assert.isValidOrderProviderRequest('orderProviderRequest', orderProviderRequest);
-        const { makerAssetData, takerAssetData, networkId } = orderProviderRequest;
+        const { makerAssetData, takerAssetData } = orderProviderRequest;
        const orderbookRequest = { baseAssetData: makerAssetData, quoteAssetData: takerAssetData };
-        const requestOpts = { networkId };
+        const requestOpts = { networkId: this.networkId };
        let orderbook: OrderbookResponse;
        try {
            orderbook = await this._sraClient.getOrderbookAsync(orderbookRequest, requestOpts);
@@ -76,4 +80,26 @@ export class StandardRelayerAPIOrderProvider implements OrderProvider {
            orders,
        };
    }
+    /**
+     * Given a taker asset data string, return all availabled paired maker asset data strings.
+     * @param   takerAssetData   A string representing the taker asset data.
+     * @return  An array of asset data strings that can be purchased using takerAssetData.
+     */
+    public async getAvailableMakerAssetDatasAsync(takerAssetData: string): Promise<string[]> {
+        // Return a maximum of 1000 asset datas
+        const maxPerPage = 1000;
+        const requestOpts = { networkId: this.networkId, perPage: maxPerPage };
+        const assetPairsRequest = { assetDataA: takerAssetData };
+        const fullRequest = {
+            ...requestOpts,
+            ...assetPairsRequest,
+        };
+        let response: AssetPairsResponse;
+        try {
+            response = await this._sraClient.getAssetPairsAsync(fullRequest);
+        } catch (err) {
+            throw new Error(AssetBuyerError.StandardRelayerApiError);
+        }
+        return _.map(response.records, item => item.assetDataB.assetData);
+    }
 }
--- a/packages/asset-buyer/src/types.ts
+++ b/packages/asset-buyer/src/types.ts
@@ -9,7 +9,6 @@ import { BigNumber } from '@0x/utils';
 export interface OrderProviderRequest {
    makerAssetData: string;
    takerAssetData: string;
-    networkId: number;
 }

 /**
@@ -27,10 +26,12 @@ export interface SignedOrderWithRemainingFillableMakerAssetAmount extends Signed
    remainingFillableMakerAssetAmount?: BigNumber;
 }
 /**
- * Given an OrderProviderRequest, get an OrderProviderResponse.
+ * gerOrdersAsync: Given an OrderProviderRequest, get an OrderProviderResponse.
+ * getAvailableMakerAssetDatasAsync: Given a taker asset data string, return all availabled paired maker asset data strings.
 */
 export interface OrderProvider {
    getOrdersAsync: (orderProviderRequest: OrderProviderRequest) => Promise<OrderProviderResponse>;
+    getAvailableMakerAssetDatasAsync: (takerAssetData: string) => Promise<string[]>;
 }

 /**
@@ -112,6 +113,8 @@ export enum AssetBuyerError {
    NoAddressAvailable = 'NO_ADDRESS_AVAILABLE',
    InvalidOrderProviderResponse = 'INVALID_ORDER_PROVIDER_RESPONSE',
    AssetUnavailable = 'ASSET_UNAVAILABLE',
+    SignatureRequestDenied = 'SIGNATURE_REQUEST_DENIED',
+    TransactionValueTooLow = 'TRANSACTION_VALUE_TOO_LOW',
 }

 export interface OrdersAndFillableAmounts {
--- a/packages/asset-buyer/src/utils/assert.ts
+++ b/packages/asset-buyer/src/utils/assert.ts
@@ -1,6 +1,5 @@
 import { assert as sharedAssert } from '@0x/assert';
 import { schemas } from '@0x/json-schemas';
-import { SignedOrder } from '@0x/types';
 import * as _ from 'lodash';

 import { BuyQuote, BuyQuoteInfo, OrderProvider, OrderProviderRequest } from '../types';
@@ -29,22 +28,6 @@ export const assert = {
    isValidOrderProviderRequest(variableName: string, orderFetcherRequest: OrderProviderRequest): void {
        sharedAssert.isHexString(`${variableName}.makerAssetData`, orderFetcherRequest.makerAssetData);
        sharedAssert.isHexString(`${variableName}.takerAssetData`, orderFetcherRequest.takerAssetData);
-        sharedAssert.isNumber(`${variableName}.networkId`, orderFetcherRequest.networkId);
-    },
-    areValidProvidedOrders(variableName: string, orders: SignedOrder[]): void {
-        if (orders.length === 0) {
-            return;
-        }
-        const makerAssetData = orders[0].makerAssetData;
-        const takerAssetData = orders[0].takerAssetData;
-        const filteredOrders = _.filter(
-            orders,
-            order => order.makerAssetData === makerAssetData && order.takerAssetData === takerAssetData,
-        );
-        sharedAssert.assert(
-            orders.length === filteredOrders.length,
-            `Expected all orders in ${variableName} to have the same makerAssetData and takerAssetData.`,
-        );
    },
    isValidPercentage(variableName: string, percentage: number): void {
        assert.isNumber(variableName, percentage);
--- a/packages/asset-buyer/src/utils/buy_quote_calculator.ts
+++ b/packages/asset-buyer/src/utils/buy_quote_calculator.ts
@@ -1,10 +1,12 @@
-import { marketUtils, rateUtils } from '@0x/order-utils';
+import { marketUtils, SignedOrder } from '@0x/order-utils';
 import { BigNumber } from '@0x/utils';
 import * as _ from 'lodash';

 import { constants } from '../constants';
 import { AssetBuyerError, BuyQuote, BuyQuoteInfo, OrdersAndFillableAmounts } from '../types';

+import { orderUtils } from './order_utils';
+
 // Calculates a buy quote for orders that have WETH as the takerAsset
 export const buyQuoteCalculator = {
    calculate(
@@ -13,6 +15,7 @@ export const buyQuoteCalculator = {
        assetBuyAmount: BigNumber,
        feePercentage: number,
        slippagePercentage: number,
+        isMakerAssetZrxToken: boolean,
    ): BuyQuote {
        const orders = ordersAndFillableAmounts.orders;
        const remainingFillableMakerAssetAmounts = ordersAndFillableAmounts.remainingFillableMakerAssetAmounts;
@@ -32,22 +35,31 @@ export const buyQuoteCalculator = {
        if (remainingFillAmount.gt(constants.ZERO_AMOUNT)) {
            throw new Error(AssetBuyerError.InsufficientAssetLiquidity);
        }
+        // if we are not buying ZRX:
        // given the orders calculated above, find the fee-orders that cover the desired assetBuyAmount (with slippage)
        // TODO(bmillman): optimization
        // update this logic to find the minimum amount of feeOrders to cover the worst case as opposed to
        // finding order that cover all fees, this will help with estimating ETH and minimizing gas usage
-        const {
-            resultFeeOrders,
-            remainingFeeAmount,
-            feeOrdersRemainingFillableMakerAssetAmounts,
-        } = marketUtils.findFeeOrdersThatCoverFeesForTargetOrders(resultOrders, feeOrders, {
-            remainingFillableMakerAssetAmounts: ordersRemainingFillableMakerAssetAmounts,
-            remainingFillableFeeAmounts,
-        });
-        // if we do not have enough feeOrders to cover the fees, throw
-        if (remainingFeeAmount.gt(constants.ZERO_AMOUNT)) {
-            throw new Error(AssetBuyerError.InsufficientZrxLiquidity);
+        let resultFeeOrders = [] as SignedOrder[];
+        let feeOrdersRemainingFillableMakerAssetAmounts = [] as BigNumber[];
+        if (!isMakerAssetZrxToken) {
+            const feeOrdersAndRemainingFeeAmount = marketUtils.findFeeOrdersThatCoverFeesForTargetOrders(
+                resultOrders,
+                feeOrders,
+                {
+                    remainingFillableMakerAssetAmounts: ordersRemainingFillableMakerAssetAmounts,
+                    remainingFillableFeeAmounts,
+                },
+            );
+            // if we do not have enough feeOrders to cover the fees, throw
+            if (feeOrdersAndRemainingFeeAmount.remainingFeeAmount.gt(constants.ZERO_AMOUNT)) {
+                throw new Error(AssetBuyerError.InsufficientZrxLiquidity);
+            }
+            resultFeeOrders = feeOrdersAndRemainingFeeAmount.resultFeeOrders;
+            feeOrdersRemainingFillableMakerAssetAmounts =
+                feeOrdersAndRemainingFeeAmount.feeOrdersRemainingFillableMakerAssetAmounts;
        }
+
        // assetData information for the result
        const assetData = orders[0].makerAssetData;
        // compile the resulting trimmed set of orders for makerAsset and feeOrders that are needed for assetBuyAmount
@@ -64,6 +76,7 @@ export const buyQuoteCalculator = {
            trimmedFeeOrdersAndFillableAmounts,
            assetBuyAmount,
            feePercentage,
+            isMakerAssetZrxToken,
        );
        // in order to calculate the maxRate, reverse the ordersAndFillableAmounts such that they are sorted from worst rate to best rate
        const worstCaseQuoteInfo = calculateQuoteInfo(
@@ -71,6 +84,7 @@ export const buyQuoteCalculator = {
            reverseOrdersAndFillableAmounts(trimmedFeeOrdersAndFillableAmounts),
            assetBuyAmount,
            feePercentage,
+            isMakerAssetZrxToken,
        );
        return {
            assetData,
@@ -89,22 +103,30 @@ function calculateQuoteInfo(
    feeOrdersAndFillableAmounts: OrdersAndFillableAmounts,
    assetBuyAmount: BigNumber,
    feePercentage: number,
+    isMakerAssetZrxToken: boolean,
 ): BuyQuoteInfo {
    // find the total eth and zrx needed to buy assetAmount from the resultOrders from left to right
-    const [ethAmountToBuyAsset, zrxAmountToBuyAsset] = findEthAndZrxAmountNeededToBuyAsset(
-        ordersAndFillableAmounts,
-        assetBuyAmount,
-    );
-    // find the total eth needed to buy fees
-    const ethAmountToBuyFees = findEthAmountNeededToBuyFees(feeOrdersAndFillableAmounts, zrxAmountToBuyAsset);
-    const affiliateFeeEthAmount = ethAmountToBuyAsset.mul(feePercentage);
-    const totalEthAmountWithoutAffiliateFee = ethAmountToBuyAsset.plus(ethAmountToBuyFees);
-    const totalEthAmount = totalEthAmountWithoutAffiliateFee.plus(affiliateFeeEthAmount);
+    let ethAmountToBuyAsset = constants.ZERO_AMOUNT;
+    let ethAmountToBuyZrx = constants.ZERO_AMOUNT;
+    if (isMakerAssetZrxToken) {
+        ethAmountToBuyAsset = findEthAmountNeededToBuyZrx(ordersAndFillableAmounts, assetBuyAmount);
+    } else {
+        // find eth and zrx amounts needed to buy
+        const ethAndZrxAmountToBuyAsset = findEthAndZrxAmountNeededToBuyAsset(ordersAndFillableAmounts, assetBuyAmount);
+        ethAmountToBuyAsset = ethAndZrxAmountToBuyAsset[0];
+        const zrxAmountToBuyAsset = ethAndZrxAmountToBuyAsset[1];
+        // find eth amount needed to buy zrx
+        ethAmountToBuyZrx = findEthAmountNeededToBuyZrx(feeOrdersAndFillableAmounts, zrxAmountToBuyAsset);
+    }
+    /// find the eth amount needed to buy the affiliate fee
+    const ethAmountToBuyAffiliateFee = ethAmountToBuyAsset.mul(feePercentage).ceil();
+    const totalEthAmountWithoutAffiliateFee = ethAmountToBuyAsset.plus(ethAmountToBuyZrx);
+    const ethAmountTotal = totalEthAmountWithoutAffiliateFee.plus(ethAmountToBuyAffiliateFee);
    // divide into the assetBuyAmount in order to find rate of makerAsset / WETH
    const ethPerAssetPrice = totalEthAmountWithoutAffiliateFee.div(assetBuyAmount);
    return {
-        totalEthAmount,
-        feeEthAmount: affiliateFeeEthAmount,
+        totalEthAmount: ethAmountTotal,
+        feeEthAmount: ethAmountToBuyAffiliateFee,
        ethPerAssetPrice,
    };
 }
@@ -119,29 +141,38 @@ function reverseOrdersAndFillableAmounts(ordersAndFillableAmounts: OrdersAndFill
    };
 }

-function findEthAmountNeededToBuyFees(
+function findEthAmountNeededToBuyZrx(
    feeOrdersAndFillableAmounts: OrdersAndFillableAmounts,
-    feeAmount: BigNumber,
+    zrxBuyAmount: BigNumber,
 ): BigNumber {
    const { orders, remainingFillableMakerAssetAmounts } = feeOrdersAndFillableAmounts;
    const result = _.reduce(
        orders,
        (acc, order, index) => {
+            const { totalEthAmount, remainingZrxBuyAmount } = acc;
            const remainingFillableMakerAssetAmount = remainingFillableMakerAssetAmounts[index];
-            const amountToFill = BigNumber.min(acc.remainingFeeAmount, remainingFillableMakerAssetAmount);
-            const feeAdjustedRate = rateUtils.getFeeAdjustedRateOfFeeOrder(order);
-            const ethAmountForThisOrder = feeAdjustedRate.mul(amountToFill);
+            const makerFillAmount = BigNumber.min(remainingZrxBuyAmount, remainingFillableMakerAssetAmount);
+            const [takerFillAmount, adjustedMakerFillAmount] = orderUtils.getTakerFillAmountForFeeOrder(
+                order,
+                makerFillAmount,
+            );
+            const extraFeeAmount = remainingFillableMakerAssetAmount.greaterThanOrEqualTo(adjustedMakerFillAmount)
+                ? constants.ZERO_AMOUNT
+                : adjustedMakerFillAmount.sub(makerFillAmount);
            return {
-                ethAmount: acc.ethAmount.plus(ethAmountForThisOrder),
-                remainingFeeAmount: BigNumber.max(constants.ZERO_AMOUNT, acc.remainingFeeAmount.minus(amountToFill)),
+                totalEthAmount: totalEthAmount.plus(takerFillAmount),
+                remainingZrxBuyAmount: BigNumber.max(
+                    constants.ZERO_AMOUNT,
+                    remainingZrxBuyAmount.minus(makerFillAmount).plus(extraFeeAmount),
+                ),
            };
        },
        {
-            ethAmount: constants.ZERO_AMOUNT,
-            remainingFeeAmount: feeAmount,
+            totalEthAmount: constants.ZERO_AMOUNT,
+            remainingZrxBuyAmount: zrxBuyAmount,
        },
    );
-    return result.ethAmount;
+    return result.totalEthAmount;
 }

 function findEthAndZrxAmountNeededToBuyAsset(
@@ -152,28 +183,25 @@ function findEthAndZrxAmountNeededToBuyAsset(
    const result = _.reduce(
        orders,
        (acc, order, index) => {
+            const { totalEthAmount, totalZrxAmount, remainingAssetBuyAmount } = acc;
            const remainingFillableMakerAssetAmount = remainingFillableMakerAssetAmounts[index];
-            const amountToFill = BigNumber.min(acc.remainingAssetBuyAmount, remainingFillableMakerAssetAmount);
-            // find the amount of eth required to fill amountToFill (amountToFill / makerAssetAmount) * takerAssetAmount
-            const ethAmountForThisOrder = amountToFill
-                .mul(order.takerAssetAmount)
-                .dividedToIntegerBy(order.makerAssetAmount);
-            // find the amount of zrx required to fill fees for amountToFill (amountToFill / makerAssetAmount) * takerFee
-            const zrxAmountForThisOrder = amountToFill.mul(order.takerFee).dividedToIntegerBy(order.makerAssetAmount);
+            const makerFillAmount = BigNumber.min(acc.remainingAssetBuyAmount, remainingFillableMakerAssetAmount);
+            const takerFillAmount = orderUtils.getTakerFillAmount(order, makerFillAmount);
+            const takerFeeAmount = orderUtils.getTakerFeeAmount(order, takerFillAmount);
            return {
-                ethAmount: acc.ethAmount.plus(ethAmountForThisOrder),
-                zrxAmount: acc.zrxAmount.plus(zrxAmountForThisOrder),
+                totalEthAmount: totalEthAmount.plus(takerFillAmount),
+                totalZrxAmount: totalZrxAmount.plus(takerFeeAmount),
                remainingAssetBuyAmount: BigNumber.max(
                    constants.ZERO_AMOUNT,
-                    acc.remainingAssetBuyAmount.minus(amountToFill),
+                    remainingAssetBuyAmount.minus(makerFillAmount),
                ),
            };
        },
        {
-            ethAmount: constants.ZERO_AMOUNT,
-            zrxAmount: constants.ZERO_AMOUNT,
+            totalEthAmount: constants.ZERO_AMOUNT,
+            totalZrxAmount: constants.ZERO_AMOUNT,
            remainingAssetBuyAmount: assetBuyAmount,
        },
    );
-    return [result.ethAmount, result.zrxAmount];
+    return [result.totalEthAmount, result.totalZrxAmount];
 }
--- a/packages/asset-buyer/src/utils/order_provider_response_processor.ts
+++ b/packages/asset-buyer/src/utils/order_provider_response_processor.ts
@@ -110,10 +110,7 @@ function getValidOrdersWithRemainingFillableMakerAssetAmountsFromOnChain(
                traderInfo.makerZrxBalance,
            ]);
            const remainingTakerAssetAmount = order.takerAssetAmount.minus(orderInfo.orderTakerAssetFilledAmount);
-            const remainingMakerAssetAmount = orderUtils.calculateRemainingMakerAssetAmount(
-                order,
-                remainingTakerAssetAmount,
-            );
+            const remainingMakerAssetAmount = orderUtils.getRemainingMakerAmount(order, remainingTakerAssetAmount);
            const remainingFillableCalculator = new RemainingFillableCalculator(
                order.makerFee,
                order.makerAssetAmount,
--- a/packages/asset-buyer/src/utils/order_utils.ts
+++ b/packages/asset-buyer/src/utils/order_utils.ts
@@ -12,19 +12,63 @@ export const orderUtils = {
        const currentUnixTimestampSec = new BigNumber(Date.now() / millisecondsInSecond).round();
        return order.expirationTimeSeconds.lessThan(currentUnixTimestampSec.plus(secondsFromNow));
    },
-    calculateRemainingMakerAssetAmount(order: SignedOrder, remainingTakerAssetAmount: BigNumber): BigNumber {
-        if (remainingTakerAssetAmount.eq(0)) {
-            return constants.ZERO_AMOUNT;
-        }
-        return remainingTakerAssetAmount.times(order.makerAssetAmount).dividedToIntegerBy(order.takerAssetAmount);
-    },
-    calculateRemainingTakerAssetAmount(order: SignedOrder, remainingMakerAssetAmount: BigNumber): BigNumber {
-        if (remainingMakerAssetAmount.eq(0)) {
-            return constants.ZERO_AMOUNT;
-        }
-        return remainingMakerAssetAmount.times(order.takerAssetAmount).dividedToIntegerBy(order.makerAssetAmount);
-    },
    isOpenOrder(order: SignedOrder): boolean {
        return order.takerAddress === constants.NULL_ADDRESS;
    },
+    // given a remaining amount of takerAsset, calculate how much makerAsset is available
+    getRemainingMakerAmount(order: SignedOrder, remainingTakerAmount: BigNumber): BigNumber {
+        const remainingMakerAmount = remainingTakerAmount
+            .times(order.makerAssetAmount)
+            .div(order.takerAssetAmount)
+            .floor();
+        return remainingMakerAmount;
+    },
+    // given a desired amount of makerAsset, calculate how much takerAsset is required to fill that amount
+    getTakerFillAmount(order: SignedOrder, makerFillAmount: BigNumber): BigNumber {
+        // Round up because exchange rate favors Maker
+        const takerFillAmount = makerFillAmount
+            .mul(order.takerAssetAmount)
+            .div(order.makerAssetAmount)
+            .ceil();
+        return takerFillAmount;
+    },
+    // given a desired amount of takerAsset to fill, calculate how much fee is required by the taker to fill that amount
+    getTakerFeeAmount(order: SignedOrder, takerFillAmount: BigNumber): BigNumber {
+        // Round down because Taker fee rate favors Taker
+        const takerFeeAmount = takerFillAmount
+            .mul(order.takerFee)
+            .div(order.takerAssetAmount)
+            .floor();
+        return takerFeeAmount;
+    },
+    // given a desired amount of takerAsset to fill, calculate how much makerAsset will be filled
+    getMakerFillAmount(order: SignedOrder, takerFillAmount: BigNumber): BigNumber {
+        // Round down because exchange rate favors Maker
+        const makerFillAmount = takerFillAmount
+            .mul(order.makerAssetAmount)
+            .div(order.takerAssetAmount)
+            .floor();
+        return makerFillAmount;
+    },
+    // given a desired amount of makerAsset, calculate how much fee is required by the maker to fill that amount
+    getMakerFeeAmount(order: SignedOrder, makerFillAmount: BigNumber): BigNumber {
+        // Round down because Maker fee rate favors Maker
+        const makerFeeAmount = makerFillAmount
+            .mul(order.makerFee)
+            .div(order.makerAssetAmount)
+            .floor();
+        return makerFeeAmount;
+    },
+    // given a desired amount of ZRX from a fee order, calculate how much takerAsset is required to fill that amount
+    // also calculate how much ZRX needs to be bought in order fill the desired amount + takerFee
+    getTakerFillAmountForFeeOrder(order: SignedOrder, makerFillAmount: BigNumber): [BigNumber, BigNumber] {
+        // For each unit of TakerAsset we buy (MakerAsset - TakerFee)
+        const adjustedTakerFillAmount = makerFillAmount
+            .mul(order.takerAssetAmount)
+            .div(order.makerAssetAmount.sub(order.takerFee))
+            .ceil();
+        // The amount that we buy will be greater than makerFillAmount, since we buy some amount for fees.
+        const adjustedMakerFillAmount = orderUtils.getMakerFillAmount(order, adjustedTakerFillAmount);
+        return [adjustedTakerFillAmount, adjustedMakerFillAmount];
+    },
 };
--- a/packages/asset-buyer/test/buy_quote_calculator_test.ts
+++ b/packages/asset-buyer/test/buy_quote_calculator_test.ts
@@ -49,9 +49,9 @@ describe('buyQuoteCalculator', () => {
                remainingFillableMakerAssetAmounts: [smallFeeOrder.makerAssetAmount],
            };
            const largeFeeOrder = orderFactory.createSignedOrderFromPartial({
-                makerAssetAmount: new BigNumber(110),
+                makerAssetAmount: new BigNumber(113),
                takerAssetAmount: new BigNumber(200),
-                takerFee: new BigNumber(10),
+                takerFee: new BigNumber(11),
            });
            allFeeOrdersAndFillableAmounts = {
                orders: [smallFeeOrder, largeFeeOrder],
@@ -70,6 +70,7 @@ describe('buyQuoteCalculator', () => {
                    new BigNumber(500),
                    0,
                    0,
+                    false,
                ),
            ).to.throw(AssetBuyerError.InsufficientAssetLiquidity);
        });
@@ -82,6 +83,7 @@ describe('buyQuoteCalculator', () => {
                    new BigNumber(300),
                    0,
                    0,
+                    false,
                ),
            ).to.throw(AssetBuyerError.InsufficientZrxLiquidity);
        });
@@ -97,6 +99,7 @@ describe('buyQuoteCalculator', () => {
                assetBuyAmount,
                feePercentage,
                slippagePercentage,
+                false,
            );
            // test if orders are correct
            expect(buyQuote.orders).to.deep.equal([ordersAndFillableAmounts.orders[0]]);
@@ -134,6 +137,7 @@ describe('buyQuoteCalculator', () => {
                assetBuyAmount,
                feePercentage,
                slippagePercentage,
+                false,
            );
            // test if orders are correct
            expect(buyQuote.orders).to.deep.equal(ordersAndFillableAmounts.orders);
@@ -149,9 +153,9 @@ describe('buyQuoteCalculator', () => {
            expect(buyQuote.bestCaseQuoteInfo.feeEthAmount).to.bignumber.equal(expectedFeeEthAmount);
            expect(buyQuote.bestCaseQuoteInfo.totalEthAmount).to.bignumber.equal(expectedTotalEthAmount);
            expect(buyQuote.bestCaseQuoteInfo.ethPerAssetPrice).to.bignumber.equal(expectedEthPerAssetPrice);
-            // 100 eth to fill the first order + 200 eth for fees
+            // 100 eth to fill the first order + 208 eth for fees
            const expectedWorstEthAmountForAsset = new BigNumber(100);
-            const expectedWorstEthAmountForZrxFees = new BigNumber(200);
+            const expectedWorstEthAmountForZrxFees = new BigNumber(208);
            const expectedWorstFillEthAmount = expectedWorstEthAmountForAsset.plus(expectedWorstEthAmountForZrxFees);
            const expectedWorstFeeEthAmount = expectedWorstEthAmountForAsset.mul(feePercentage);
            const expectedWorstTotalEthAmount = expectedWorstFillEthAmount.plus(expectedWorstFeeEthAmount);
--- a/packages/base-contract/CHANGELOG.json
+++ b/packages/base-contract/CHANGELOG.json
@@ -1,4 +1,22 @@
 [
+    {
+        "timestamp": 1542028948,
+        "version": "3.0.4",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "version": "3.0.3",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ],
+        "timestamp": 1541740904
+    },
    {
        "timestamp": 1539871071,
        "version": "3.0.2",
--- a/packages/base-contract/CHANGELOG.md
+++ b/packages/base-contract/CHANGELOG.md
@@ -5,6 +5,14 @@ Edit the package's CHANGELOG.json file only.

 CHANGELOG

+## v3.0.4 - _November 12, 2018_
+
+    * Dependencies updated
+
+## v3.0.3 - _November 9, 2018_
+
+    * Dependencies updated
+
 ## v3.0.2 - _October 18, 2018_

    * Dependencies updated
--- a/packages/base-contract/package.json
+++ b/packages/base-contract/package.json
@@ -1,6 +1,6 @@
 {
    "name": "@0x/base-contract",
-    "version": "3.0.2",
+    "version": "3.0.4",
    "engines": {
        "node": ">=6.12"
    },
@@ -17,7 +17,7 @@
        "run_mocha": "mocha --require source-map-support/register --require make-promises-safe lib/test/**/*_test.js --bail --exit",
        "test:coverage": "nyc npm run test --all && yarn coverage:report:lcov",
        "coverage:report:lcov": "nyc report --reporter=text-lcov > coverage/lcov.info",
-        "lint": "tslint --project . --exclude **/src/contract_wrappers/**/*"
+        "lint": "tslint --format stylish --project ."
    },
    "license": "Apache-2.0",
    "repository": {
@@ -29,7 +29,7 @@
    },
    "homepage": "https://github.com/0xProject/0x-monorepo/packages/base-contract/README.md",
    "devDependencies": {
-        "@0x/tslint-config": "^1.0.9",
+        "@0x/tslint-config": "^1.0.10",
        "@types/lodash": "4.14.104",
        "chai": "^4.0.1",
        "make-promises-safe": "^1.1.0",
@@ -40,10 +40,10 @@
        "typescript": "3.0.1"
    },
    "dependencies": {
-        "@0x/typescript-typings": "^3.0.3",
-        "@0x/utils": "^2.0.3",
-        "@0x/web3-wrapper": "^3.1.0",
-        "ethereum-types": "^1.1.1",
+        "@0x/typescript-typings": "^3.0.4",
+        "@0x/utils": "^2.0.4",
+        "@0x/web3-wrapper": "^3.1.2",
+        "ethereum-types": "^1.1.2",
        "ethers": "~4.0.4",
        "lodash": "^4.17.5"
    },
--- a/packages/connect/CHANGELOG.json
+++ b/packages/connect/CHANGELOG.json
@@ -1,4 +1,22 @@
 [
+    {
+        "timestamp": 1542028948,
+        "version": "3.0.4",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "version": "3.0.3",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ],
+        "timestamp": 1541740904
+    },
    {
        "timestamp": 1539871071,
        "version": "3.0.2",
--- a/packages/connect/CHANGELOG.md
+++ b/packages/connect/CHANGELOG.md
@@ -5,6 +5,14 @@ Edit the package's CHANGELOG.json file only.

 CHANGELOG

+## v3.0.4 - _November 12, 2018_
+
+    * Dependencies updated
+
+## v3.0.3 - _November 9, 2018_
+
+    * Dependencies updated
+
 ## v3.0.2 - _October 18, 2018_

    * Dependencies updated
--- a/packages/connect/package.json
+++ b/packages/connect/package.json
@@ -1,6 +1,6 @@
 {
    "name": "@0x/connect",
-    "version": "3.0.2",
+    "version": "3.0.4",
    "engines": {
        "node": ">=6.12"
    },
@@ -19,7 +19,7 @@
        "build:ci": "yarn build",
        "clean": "shx rm -rf lib test_temp generated_docs",
        "copy_test_fixtures": "copyfiles -u 2 './test/fixtures/**/*.json' ./lib/test/fixtures",
-        "lint": "tslint --project .",
+        "lint": "tslint --format stylish --project .",
        "run_mocha": "mocha --require source-map-support/register --require make-promises-safe lib/test/**/*_test.js --exit",
        "test": "run-s copy_test_fixtures run_mocha",
        "rebuild_and_test": "run-s clean build test",
@@ -44,12 +44,12 @@
    },
    "homepage": "https://github.com/0xProject/0x-monorepo/packages/connect/README.md",
    "dependencies": {
-        "@0x/assert": "^1.0.14",
-        "@0x/json-schemas": "^2.0.0",
-        "@0x/order-utils": "^2.0.0",
-        "@0x/types": "^1.2.0",
-        "@0x/typescript-typings": "^3.0.3",
-        "@0x/utils": "^2.0.3",
+        "@0x/assert": "^1.0.16",
+        "@0x/json-schemas": "^2.1.0",
+        "@0x/order-utils": "^3.0.0",
+        "@0x/types": "^1.2.1",
+        "@0x/typescript-typings": "^3.0.4",
+        "@0x/utils": "^2.0.4",
        "lodash": "^4.17.5",
        "query-string": "^5.0.1",
        "sinon": "^4.0.0",
@@ -57,7 +57,7 @@
        "websocket": "^1.0.25"
    },
    "devDependencies": {
-        "@0x/tslint-config": "^1.0.9",
+        "@0x/tslint-config": "^1.0.10",
        "@types/fetch-mock": "^6.0.3",
        "@types/lodash": "4.14.104",
        "@types/mocha": "^2.2.42",
--- a/packages/connect/src/http_client.ts
+++ b/packages/connect/src/http_client.ts
@@ -19,7 +19,6 @@ import { fetchAsync } from '@0x/utils';
 import * as _ from 'lodash';
 import * as queryString from 'query-string';

-import { schemas as clientSchemas } from './schemas/schemas';
 import { Client, HttpRequestOptions, HttpRequestType } from './types';
 import { relayerResponseJsonParsers } from './utils/relayer_response_json_parsers';

@@ -61,9 +60,9 @@ export class HttpClient implements Client {
        requestOpts?: RequestOpts & AssetPairsRequestOpts & PagedRequestOpts,
    ): Promise<AssetPairsResponse> {
        if (!_.isUndefined(requestOpts)) {
-            assert.doesConformToSchema('requestOpts', requestOpts, clientSchemas.assetPairsRequestOptsSchema);
-            assert.doesConformToSchema('requestOpts', requestOpts, clientSchemas.pagedRequestOptsSchema);
-            assert.doesConformToSchema('requestOpts', requestOpts, clientSchemas.requestOptsSchema);
+            assert.doesConformToSchema('requestOpts', requestOpts, schemas.assetPairsRequestOptsSchema);
+            assert.doesConformToSchema('requestOpts', requestOpts, schemas.pagedRequestOptsSchema);
+            assert.doesConformToSchema('requestOpts', requestOpts, schemas.requestOptsSchema);
        }
        const httpRequestOpts = {
            params: requestOpts,
@@ -81,9 +80,9 @@ export class HttpClient implements Client {
        requestOpts?: RequestOpts & OrdersRequestOpts & PagedRequestOpts,
    ): Promise<OrdersResponse> {
        if (!_.isUndefined(requestOpts)) {
-            assert.doesConformToSchema('requestOpts', requestOpts, clientSchemas.ordersRequestOptsSchema);
-            assert.doesConformToSchema('requestOpts', requestOpts, clientSchemas.pagedRequestOptsSchema);
-            assert.doesConformToSchema('requestOpts', requestOpts, clientSchemas.requestOptsSchema);
+            assert.doesConformToSchema('requestOpts', requestOpts, schemas.ordersRequestOptsSchema);
+            assert.doesConformToSchema('requestOpts', requestOpts, schemas.pagedRequestOptsSchema);
+            assert.doesConformToSchema('requestOpts', requestOpts, schemas.requestOptsSchema);
        }
        const httpRequestOpts = {
            params: requestOpts,
@@ -99,7 +98,7 @@ export class HttpClient implements Client {
     */
    public async getOrderAsync(orderHash: string, requestOpts?: RequestOpts): Promise<APIOrder> {
        if (!_.isUndefined(requestOpts)) {
-            assert.doesConformToSchema('requestOpts', requestOpts, clientSchemas.requestOptsSchema);
+            assert.doesConformToSchema('requestOpts', requestOpts, schemas.requestOptsSchema);
        }
        assert.doesConformToSchema('orderHash', orderHash, schemas.orderHashSchema);
        const httpRequestOpts = {
@@ -119,10 +118,10 @@ export class HttpClient implements Client {
        request: OrderbookRequest,
        requestOpts?: RequestOpts & PagedRequestOpts,
    ): Promise<OrderbookResponse> {
-        assert.doesConformToSchema('request', request, clientSchemas.orderBookRequestSchema);
+        assert.doesConformToSchema('request', request, schemas.orderBookRequestSchema);
        if (!_.isUndefined(requestOpts)) {
-            assert.doesConformToSchema('requestOpts', requestOpts, clientSchemas.pagedRequestOptsSchema);
-            assert.doesConformToSchema('requestOpts', requestOpts, clientSchemas.requestOptsSchema);
+            assert.doesConformToSchema('requestOpts', requestOpts, schemas.pagedRequestOptsSchema);
+            assert.doesConformToSchema('requestOpts', requestOpts, schemas.requestOptsSchema);
        }
        const httpRequestOpts = {
            params: _.defaults({}, request, requestOpts),
@@ -142,9 +141,9 @@ export class HttpClient implements Client {
        requestOpts?: RequestOpts,
    ): Promise<OrderConfigResponse> {
        if (!_.isUndefined(requestOpts)) {
-            assert.doesConformToSchema('requestOpts', requestOpts, clientSchemas.requestOptsSchema);
+            assert.doesConformToSchema('requestOpts', requestOpts, schemas.requestOptsSchema);
        }
-        assert.doesConformToSchema('request', request, clientSchemas.orderConfigRequestSchema);
+        assert.doesConformToSchema('request', request, schemas.orderConfigRequestSchema);
        const httpRequestOpts = {
            params: requestOpts,
            payload: request,
@@ -160,8 +159,8 @@ export class HttpClient implements Client {
     */
    public async getFeeRecipientsAsync(requestOpts?: RequestOpts & PagedRequestOpts): Promise<FeeRecipientsResponse> {
        if (!_.isUndefined(requestOpts)) {
-            assert.doesConformToSchema('requestOpts', requestOpts, clientSchemas.pagedRequestOptsSchema);
-            assert.doesConformToSchema('requestOpts', requestOpts, clientSchemas.requestOptsSchema);
+            assert.doesConformToSchema('requestOpts', requestOpts, schemas.pagedRequestOptsSchema);
+            assert.doesConformToSchema('requestOpts', requestOpts, schemas.requestOptsSchema);
        }
        const httpRequestOpts = {
            params: requestOpts,
--- a/packages/connect/src/schemas/asset_pairs_request_opts_schema.ts
+++ b/packages/connect/src/schemas/asset_pairs_request_opts_schema.ts
@@ -1,8 +0,0 @@
-export const assetPairsRequestOptsSchema = {
-    id: '/AssetPairsRequestOpts',
-    type: 'object',
-    properties: {
-        assetDataA: { $ref: '/hexSchema' },
-        assetDataB: { $ref: '/hexSchema' },
-    },
-};
--- a/packages/connect/src/schemas/order_config_request_schema.ts
+++ b/packages/connect/src/schemas/order_config_request_schema.ts
@@ -1,24 +0,0 @@
-export const orderConfigRequestSchema = {
-    id: '/OrderConfigRequest',
-    type: 'object',
-    properties: {
-        makerAddress: { $ref: '/addressSchema' },
-        takerAddress: { $ref: '/addressSchema' },
-        makerAssetAmount: { $ref: '/numberSchema' },
-        takerAssetAmount: { $ref: '/numberSchema' },
-        makerAssetData: { $ref: '/hexSchema' },
-        takerAssetData: { $ref: '/hexSchema' },
-        exchangeAddress: { $ref: '/addressSchema' },
-        expirationTimeSeconds: { $ref: '/numberSchema' },
-    },
-    required: [
-        'makerAddress',
-        'takerAddress',
-        'makerAssetAmount',
-        'takerAssetAmount',
-        'makerAssetData',
-        'takerAssetData',
-        'exchangeAddress',
-        'expirationTimeSeconds',
-    ],
-};
--- a/packages/connect/src/schemas/orderbook_request_schema.ts
+++ b/packages/connect/src/schemas/orderbook_request_schema.ts
@@ -1,9 +0,0 @@
-export const orderBookRequestSchema = {
-    id: '/OrderBookRequest',
-    type: 'object',
-    properties: {
-        baseAssetData: { $ref: '/hexSchema' },
-        quoteAssetData: { $ref: '/hexSchema' },
-    },
-    required: ['baseAssetData', 'quoteAssetData'],
-};
--- a/packages/connect/src/schemas/orders_request_opts_schema.ts
+++ b/packages/connect/src/schemas/orders_request_opts_schema.ts
@@ -1,19 +0,0 @@
-export const ordersRequestOptsSchema = {
-    id: '/OrdersRequestOpts',
-    type: 'object',
-    properties: {
-        makerAssetProxyId: { $ref: '/hexSchema' },
-        takerAssetProxyId: { $ref: '/hexSchema' },
-        makerAssetAddress: { $ref: '/addressSchema' },
-        takerAssetAddress: { $ref: '/addressSchema' },
-        exchangeAddress: { $ref: '/addressSchema' },
-        senderAddress: { $ref: '/addressSchema' },
-        makerAssetData: { $ref: '/hexSchema' },
-        takerAssetData: { $ref: '/hexSchema' },
-        traderAssetData: { $ref: '/hexSchema' },
-        makerAddress: { $ref: '/addressSchema' },
-        takerAddress: { $ref: '/addressSchema' },
-        traderAddress: { $ref: '/addressSchema' },
-        feeRecipientAddress: { $ref: '/addressSchema' },
-    },
-};
--- a/packages/connect/src/schemas/paged_request_opts_schema.ts
+++ b/packages/connect/src/schemas/paged_request_opts_schema.ts
@@ -1,8 +0,0 @@
-export const pagedRequestOptsSchema = {
-    id: '/PagedRequestOpts',
-    type: 'object',
-    properties: {
-        page: { type: 'number' },
-        perPage: { type: 'number' },
-    },
-};
--- a/packages/connect/src/schemas/request_opts_schema.ts
+++ b/packages/connect/src/schemas/request_opts_schema.ts
@@ -1,7 +0,0 @@
-export const requestOptsSchema = {
-    id: '/RequestOpts',
-    type: 'object',
-    properties: {
-        networkId: { type: 'number' },
-    },
-};
--- a/packages/connect/src/schemas/schemas.ts
+++ b/packages/connect/src/schemas/schemas.ts
@@ -1,15 +0,0 @@
-import { assetPairsRequestOptsSchema } from './asset_pairs_request_opts_schema';
-import { orderConfigRequestSchema } from './order_config_request_schema';
-import { orderBookRequestSchema } from './orderbook_request_schema';
-import { ordersRequestOptsSchema } from './orders_request_opts_schema';
-import { pagedRequestOptsSchema } from './paged_request_opts_schema';
-import { requestOptsSchema } from './request_opts_schema';
-
-export const schemas = {
-    orderConfigRequestSchema,
-    orderBookRequestSchema,
-    ordersRequestOptsSchema,
-    pagedRequestOptsSchema,
-    requestOptsSchema,
-    assetPairsRequestOptsSchema,
-};
--- a/packages/contract-addresses/CHANGELOG.json
+++ b/packages/contract-addresses/CHANGELOG.json
@@ -1,4 +1,14 @@
 [
+    {
+        "version": "1.1.0",
+        "changes": [
+            {
+                "pr": 1192,
+                "note": "Update Forwarder addresses"
+            }
+        ],
+        "timestamp": 1541740904
+    },
    {
        "version": "1.0.1",
        "changes": [
--- a/packages/contract-addresses/CHANGELOG.md
+++ b/packages/contract-addresses/CHANGELOG.md
@@ -5,6 +5,10 @@ Edit the package's CHANGELOG.json file only.

 CHANGELOG

+## v1.1.0 - _November 9, 2018_
+
+    * Update Forwarder addresses (#1192)
+
 ## v1.0.1 - _October 18, 2018_

    * Initial release (#1105)
--- a/packages/contract-addresses/package.json
+++ b/packages/contract-addresses/package.json
@@ -1,6 +1,6 @@
 {
    "name": "@0x/contract-addresses",
-    "version": "1.0.1",
+    "version": "1.1.0",
    "engines": {
        "node": ">=6.12"
    },
--- a/packages/contract-addresses/src/index.ts
+++ b/packages/contract-addresses/src/index.ts
@@ -25,7 +25,7 @@ const networkToAddresses: { [networkId: number]: ContractAddresses } = {
        etherToken: '0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2',
        exchange: '0x4f833a24e1f95d70f028921e27040ca56e09ab0b',
        assetProxyOwner: '0x17992e4ffb22730138e4b62aaa6367fa9d3699a6',
-        forwarder: '0x7afc2d5107af94c462a194d2c21b5bdd238709d6',
+        forwarder: '0x5468a1dc173652ee28d249c271fa9933144746b1',
        orderValidator: '0x9463e518dea6810309563c81d5266c1b1d149138',
    },
    3: {
@@ -35,7 +35,7 @@ const networkToAddresses: { [networkId: number]: ContractAddresses } = {
        etherToken: '0xc778417e063141139fce010982780140aa0cd5ab',
        exchange: '0x4530c0483a1633c7a1c97d2c53721caff2caaaaf',
        assetProxyOwner: '0xf5fa5b5fed2727a0e44ac67f6772e97977aa358b',
-        forwarder: '0x3983e204b12b3c02fb0638caf2cd406a62e0ead3',
+        forwarder: '0x2240dab907db71e64d3e0dba4800c83b5c502d4e',
        orderValidator: '0x90431a90516ab49af23a0530e04e8c7836e7122f',
    },
    42: {
@@ -45,7 +45,7 @@ const networkToAddresses: { [networkId: number]: ContractAddresses } = {
        etherToken: '0xd0a1e359811322d97991e03f863a0c30c2cf029c',
        exchange: '0x35dd2932454449b14cee11a94d3674a936d5d7b2',
        assetProxyOwner: '0x2c824d2882baa668e0d5202b1e7f2922278703f8',
-        forwarder: '0xd85e2fa7e7e252b27b01bf0d65c946959d2f45b8',
+        forwarder: '0x17992e4ffb22730138e4b62aaa6367fa9d3699a6',
        orderValidator: '0xb389da3d204b412df2f75c6afb3d0a7ce0bc283d',
    },
 };
--- a/packages/contract-artifacts/CHANGELOG.json
+++ b/packages/contract-artifacts/CHANGELOG.json
@@ -1,4 +1,14 @@
 [
+    {
+        "version": "1.1.0",
+        "changes": [
+            {
+                "pr": 1192,
+                "note": "Update Forwarder artifact"
+            }
+        ],
+        "timestamp": 1541740904
+    },
    {
        "version": "1.0.1",
        "changes": [
--- a/packages/contract-artifacts/CHANGELOG.md
+++ b/packages/contract-artifacts/CHANGELOG.md
@@ -5,6 +5,10 @@ Edit the package's CHANGELOG.json file only.

 CHANGELOG

+## v1.1.0 - _November 9, 2018_
+
+    * Update Forwarder artifact (#1192)
+
 ## v1.0.1 - _October 18, 2018_

    * Initial release (#1105)
--- a/packages/contract-artifacts/artifacts/Forwarder.json
+++ b/packages/contract-artifacts/artifacts/Forwarder.json
--- a/packages/contract-artifacts/package.json
+++ b/packages/contract-artifacts/package.json
@@ -1,6 +1,6 @@
 {
    "name": "@0x/contract-artifacts",
-    "version": "1.0.1",
+    "version": "1.1.0",
    "engines": {
        "node": ">=6.12"
    },
--- a/packages/contract-wrappers/CHANGELOG.json
+++ b/packages/contract-wrappers/CHANGELOG.json
@@ -1,4 +1,35 @@
 [
+    {
+        "version": "4.0.0",
+        "changes": [
+            {
+                "note":
+                    "Add signature validation, regular cancellation and `cancelledUpTo` checks to `validateOrderFillableOrThrowAsync`",
+                "pr": 1235
+            },
+            {
+                "note":
+                    "Improved the errors thrown by `validateOrderFillableOrThrowAsync` by making them more descriptive",
+                "pr": 1235
+            },
+            {
+                "note":
+                    "Throw previously swallowed network errors when calling `validateOrderFillableOrThrowAsync` (see issue: #1218)",
+                "pr": 1235
+            }
+        ],
+        "timestamp": 1542028948
+    },
+    {
+        "version": "3.0.1",
+        "changes": [
+            {
+                "note": "Fix bug in `ForwarderWrapper` where `feeRecipientAddress` was not correctly normalized.",
+                "pr": 1178
+            }
+        ],
+        "timestamp": 1541740904
+    },
    {
        "version": "3.0.0",
        "changes": [
@@ -37,6 +68,14 @@
                "note":
                    "Removed ContractNotFound errors. Checking for this error was somewhat ineffecient. Relevant methods/functions now return the default error from web3-wrapper, which we feel provides enough information.",
                "pr": 1105
+            },
+            {
+                "note": "Add `ForwarderWrapperError` to public interface",
+                "pr": 1147
+            },
+            {
+                "note": "Add `ContractWrapperError.SignatureRequestDenied` to public interface",
+                "pr": 1147
            }
        ],
        "timestamp": 1539871071
--- a/packages/contract-wrappers/CHANGELOG.md
+++ b/packages/contract-wrappers/CHANGELOG.md
@@ -5,6 +5,16 @@ Edit the package's CHANGELOG.json file only.

 CHANGELOG

+## v4.0.0 - _November 12, 2018_
+
+    * Add signature validation, regular cancellation and `cancelledUpTo` checks to `validateOrderFillableOrThrowAsync` (#1235)
+    * Improved the errors thrown by `validateOrderFillableOrThrowAsync` by making them more descriptive (#1235)
+    * Throw previously swallowed network errors when calling `validateOrderFillableOrThrowAsync` (see issue: #1218) (#1235)
+
+## v3.0.1 - _November 9, 2018_
+
+    * Fix bug in `ForwarderWrapper` where `feeRecipientAddress` was not correctly normalized. (#1178)
+
 ## v3.0.0 - _October 18, 2018_

    * Add optional validation to the forwarder wrapper methods
@@ -15,6 +25,8 @@ CHANGELOG
    * Removed `setProvider` method in top-level `ContractWrapper` class and added new `unsubscribeAll` method. (#1105)
    * Some properties and methods have been renamed. For example, some methods that previously could throw no longer can, and so their names have been updated accordingly. (#1105)
    * Removed ContractNotFound errors. Checking for this error was somewhat ineffecient. Relevant methods/functions now return the default error from web3-wrapper, which we feel provides enough information. (#1105)
+    * Add `ForwarderWrapperError` to public interface (#1147)
+    * Add `ContractWrapperError.SignatureRequestDenied` to public interface (#1147)

 ## v2.0.2 - _October 4, 2018_

--- a/packages/contract-wrappers/package.json
+++ b/packages/contract-wrappers/package.json
@@ -1,6 +1,6 @@
 {
    "name": "@0x/contract-wrappers",
-    "version": "3.0.0",
+    "version": "4.0.0",
    "description": "Smart TS wrappers for 0x smart contracts",
    "keywords": [
        "0xproject",
@@ -13,7 +13,7 @@
    "scripts": {
        "build": "tsc -b",
        "build:ci": "yarn build",
-        "lint": "tslint --project . --exclude **/src/contract_wrappers/**/* --exclude **/lib/**/*",
+        "lint": "tslint --format stylish --project . --exclude **/lib/**/*",
        "test:circleci": "run-s test:coverage",
        "test": "yarn run_mocha",
        "rebuild_and_test": "run-s build test",
@@ -37,10 +37,10 @@
        "node": ">=6.0.0"
    },
    "devDependencies": {
-        "@0x/dev-utils": "^1.0.13",
-        "@0x/migrations": "^2.0.0",
-        "@0x/subproviders": "^2.1.0",
-        "@0x/tslint-config": "^1.0.9",
+        "@0x/dev-utils": "^1.0.15",
+        "@0x/migrations": "^2.0.2",
+        "@0x/subproviders": "^2.1.2",
+        "@0x/tslint-config": "^1.0.10",
        "@types/lodash": "4.14.104",
        "@types/mocha": "^2.2.42",
        "@types/node": "*",
@@ -65,18 +65,18 @@
        "web3-provider-engine": "14.0.6"
    },
    "dependencies": {
-        "@0x/abi-gen-wrappers": "^1.0.1",
-        "@0x/assert": "^1.0.14",
-        "@0x/contract-addresses": "^1.0.1",
-        "@0x/contract-artifacts": "^1.0.1",
-        "@0x/fill-scenarios": "^1.0.8",
-        "@0x/json-schemas": "^2.0.0",
-        "@0x/order-utils": "^2.0.0",
-        "@0x/types": "^1.2.0",
-        "@0x/typescript-typings": "^3.0.3",
-        "@0x/utils": "^2.0.3",
-        "@0x/web3-wrapper": "^3.1.0",
-        "ethereum-types": "^1.1.1",
+        "@0x/abi-gen-wrappers": "^1.0.3",
+        "@0x/assert": "^1.0.16",
+        "@0x/contract-addresses": "^1.1.0",
+        "@0x/contract-artifacts": "^1.1.0",
+        "@0x/fill-scenarios": "^1.0.10",
+        "@0x/json-schemas": "^2.1.0",
+        "@0x/order-utils": "^3.0.0",
+        "@0x/types": "^1.2.1",
+        "@0x/typescript-typings": "^3.0.4",
+        "@0x/utils": "^2.0.4",
+        "@0x/web3-wrapper": "^3.1.2",
+        "ethereum-types": "^1.1.2",
        "ethereumjs-blockstream": "6.0.0",
        "ethereumjs-util": "^5.1.1",
        "ethers": "~4.0.4",
--- a/packages/contract-wrappers/src/contract_wrappers/contract_wrapper.ts
+++ b/packages/contract-wrappers/src/contract_wrappers/contract_wrapper.ts
@@ -28,10 +28,10 @@ export abstract class ContractWrapper {
    protected _networkId: number;
    protected _web3Wrapper: Web3Wrapper;
    private _blockAndLogStreamerIfExists: BlockAndLogStreamer<Block, Log> | undefined;
-    private _blockPollingIntervalMs: number;
+    private readonly _blockPollingIntervalMs: number;
    private _blockAndLogStreamIntervalIfExists?: NodeJS.Timer;
-    private _filters: { [filterToken: string]: FilterObject };
-    private _filterCallbacks: {
+    private readonly _filters: { [filterToken: string]: FilterObject };
+    private readonly _filterCallbacks: {
        [filterToken: string]: EventCallback<ContractEventArgs>;
    };
    private _onLogAddedSubscriptionToken: string | undefined;
--- a/packages/contract-wrappers/src/contract_wrappers/erc20_proxy_wrapper.ts
+++ b/packages/contract-wrappers/src/contract_wrappers/erc20_proxy_wrapper.ts
@@ -34,6 +34,9 @@ export class ERC20ProxyWrapper extends ContractWrapper {
     */
    public async getProxyIdAsync(): Promise<AssetProxyId> {
        const ERC20ProxyContractInstance = this._getERC20ProxyContract();
+        // Note(albrow): Below is a TSLint false positive. Code won't compile if
+        // you remove the type assertion.
+        /* tslint:disable-next-line:no-unnecessary-type-assertion */
        const proxyId = (await ERC20ProxyContractInstance.getProxyId.callAsync()) as AssetProxyId;
        return proxyId;
    }
--- a/packages/contract-wrappers/src/contract_wrappers/erc20_token_wrapper.ts
+++ b/packages/contract-wrappers/src/contract_wrappers/erc20_token_wrapper.ts
@@ -18,12 +18,11 @@ import {
 } from '../types';
 import { assert } from '../utils/assert';
 import { constants } from '../utils/constants';
+import { utils } from '../utils/utils';

 import { ContractWrapper } from './contract_wrapper';
 import { ERC20ProxyWrapper } from './erc20_proxy_wrapper';

-const removeUndefinedProperties = _.pickBy;
-
 /**
 * This class includes all the functionality related to interacting with ERC20 token contracts.
 * All ERC20 method calls are supported, along with some convenience methods for getting/setting allowances
@@ -32,8 +31,8 @@ const removeUndefinedProperties = _.pickBy;
 export class ERC20TokenWrapper extends ContractWrapper {
    public abi: ContractAbi = ERC20Token.compilerOutput.abi;
    public UNLIMITED_ALLOWANCE_IN_BASE_UNITS = constants.UNLIMITED_ALLOWANCE_IN_BASE_UNITS;
-    private _tokenContractsByAddress: { [address: string]: ERC20TokenContract };
-    private _erc20ProxyWrapper: ERC20ProxyWrapper;
+    private readonly _tokenContractsByAddress: { [address: string]: ERC20TokenContract };
+    private readonly _erc20ProxyWrapper: ERC20ProxyWrapper;
    /**
     * Instantiate ERC20TokenWrapper
     * @param web3Wrapper Web3Wrapper instance to use
@@ -108,7 +107,7 @@ export class ERC20TokenWrapper extends ContractWrapper {
        const txHash = await tokenContract.approve.sendTransactionAsync(
            normalizedSpenderAddress,
            amountInBaseUnits,
-            removeUndefinedProperties({
+            utils.removeUndefinedProperties({
                from: normalizedOwnerAddress,
                gas: txOpts.gasLimit,
                gasPrice: txOpts.gasPrice,
@@ -278,7 +277,7 @@ export class ERC20TokenWrapper extends ContractWrapper {
        const txHash = await tokenContract.transfer.sendTransactionAsync(
            normalizedToAddress,
            amountInBaseUnits,
-            removeUndefinedProperties({
+            utils.removeUndefinedProperties({
                from: normalizedFromAddress,
                gas: txOpts.gasLimit,
                gasPrice: txOpts.gasPrice,
@@ -339,7 +338,7 @@ export class ERC20TokenWrapper extends ContractWrapper {
            normalizedFromAddress,
            normalizedToAddress,
            amountInBaseUnits,
-            removeUndefinedProperties({
+            utils.removeUndefinedProperties({
                from: normalizedSenderAddress,
                gas: txOpts.gasLimit,
                gasPrice: txOpts.gasPrice,
--- a/packages/contract-wrappers/src/contract_wrappers/erc721_proxy_wrapper.ts
+++ b/packages/contract-wrappers/src/contract_wrappers/erc721_proxy_wrapper.ts
@@ -34,6 +34,9 @@ export class ERC721ProxyWrapper extends ContractWrapper {
     */
    public async getProxyIdAsync(): Promise<AssetProxyId> {
        const ERC721ProxyContractInstance = await this._getERC721ProxyContract();
+        // Note(albrow): Below is a TSLint false positive. Code won't compile if
+        // you remove the type assertion.
+        /* tslint:disable-next-line:no-unnecessary-type-assertion */
        const proxyId = (await ERC721ProxyContractInstance.getProxyId.callAsync()) as AssetProxyId;
        return proxyId;
    }
--- a/packages/contract-wrappers/src/contract_wrappers/erc721_token_wrapper.ts
+++ b/packages/contract-wrappers/src/contract_wrappers/erc721_token_wrapper.ts
@@ -18,12 +18,11 @@ import {
 } from '../types';
 import { assert } from '../utils/assert';
 import { constants } from '../utils/constants';
+import { utils } from '../utils/utils';

 import { ContractWrapper } from './contract_wrapper';
 import { ERC721ProxyWrapper } from './erc721_proxy_wrapper';

-const removeUndefinedProperties = _.pickBy;
-
 /**
 * This class includes all the functionality related to interacting with ERC721 token contracts.
 * All ERC721 method calls are supported, along with some convenience methods for getting/setting allowances
@@ -31,8 +30,8 @@ const removeUndefinedProperties = _.pickBy;
 */
 export class ERC721TokenWrapper extends ContractWrapper {
    public abi: ContractAbi = ERC721Token.compilerOutput.abi;
-    private _tokenContractsByAddress: { [address: string]: ERC721TokenContract };
-    private _erc721ProxyWrapper: ERC721ProxyWrapper;
+    private readonly _tokenContractsByAddress: { [address: string]: ERC721TokenContract };
+    private readonly _erc721ProxyWrapper: ERC721ProxyWrapper;
    /**
     * Instantiate ERC721TokenWrapper
     * @param web3Wrapper Web3Wrapper instance to use
@@ -235,7 +234,7 @@ export class ERC721TokenWrapper extends ContractWrapper {
        const txHash = await tokenContract.setApprovalForAll.sendTransactionAsync(
            normalizedOperatorAddress,
            isApproved,
-            removeUndefinedProperties({
+            utils.removeUndefinedProperties({
                gas: txOpts.gasLimit,
                gasPrice: txOpts.gasPrice,
                from: normalizedOwnerAddress,
@@ -295,7 +294,7 @@ export class ERC721TokenWrapper extends ContractWrapper {
        const txHash = await tokenContract.approve.sendTransactionAsync(
            normalizedApprovedAddress,
            tokenId,
-            removeUndefinedProperties({
+            utils.removeUndefinedProperties({
                gas: txOpts.gasLimit,
                gasPrice: txOpts.gasPrice,
                from: tokenOwnerAddress,
@@ -366,7 +365,7 @@ export class ERC721TokenWrapper extends ContractWrapper {
            ownerAddress,
            normalizedReceiverAddress,
            tokenId,
-            removeUndefinedProperties({
+            utils.removeUndefinedProperties({
                gas: txOpts.gasLimit,
                gasPrice: txOpts.gasPrice,
                from: normalizedSenderAddress,
--- a/packages/contract-wrappers/src/contract_wrappers/ether_token_wrapper.ts
+++ b/packages/contract-wrappers/src/contract_wrappers/ether_token_wrapper.ts
@@ -8,22 +8,21 @@ import * as _ from 'lodash';

 import { BlockRange, ContractWrappersError, EventCallback, IndexedFilterValues, TransactionOpts } from '../types';
 import { assert } from '../utils/assert';
+import { utils } from '../utils/utils';

 import { ContractWrapper } from './contract_wrapper';
 import { ERC20TokenWrapper } from './erc20_token_wrapper';

-const removeUndefinedProperties = _.pickBy;
-
 /**
 * This class includes all the functionality related to interacting with a wrapped Ether ERC20 token contract.
 * The caller can convert ETH into the equivalent number of wrapped ETH ERC20 tokens and back.
 */
 export class EtherTokenWrapper extends ContractWrapper {
    public abi: ContractAbi = WETH9.compilerOutput.abi;
-    private _etherTokenContractsByAddress: {
+    private readonly _etherTokenContractsByAddress: {
        [address: string]: WETH9Contract;
    } = {};
-    private _erc20TokenWrapper: ERC20TokenWrapper;
+    private readonly _erc20TokenWrapper: ERC20TokenWrapper;
    /**
     * Instantiate EtherTokenWrapper.
     * @param web3Wrapper Web3Wrapper instance to use
@@ -67,7 +66,7 @@ export class EtherTokenWrapper extends ContractWrapper {

        const wethContract = await this._getEtherTokenContractAsync(normalizedEtherTokenAddress);
        const txHash = await wethContract.deposit.sendTransactionAsync(
-            removeUndefinedProperties({
+            utils.removeUndefinedProperties({
                from: normalizedDepositorAddress,
                value: amountInWei,
                gas: txOpts.gasLimit,
@@ -109,7 +108,7 @@ export class EtherTokenWrapper extends ContractWrapper {
        const wethContract = await this._getEtherTokenContractAsync(normalizedEtherTokenAddress);
        const txHash = await wethContract.withdraw.sendTransactionAsync(
            amountInWei,
-            removeUndefinedProperties({
+            utils.removeUndefinedProperties({
                from: normalizedWithdrawerAddress,
                gas: txOpts.gasLimit,
                gasPrice: txOpts.gasPrice,
--- a/packages/contract-wrappers/src/contract_wrappers/exchange_wrapper.ts
+++ b/packages/contract-wrappers/src/contract_wrappers/exchange_wrapper.ts
@@ -18,6 +18,7 @@ import { OrderFilledCancelledFetcher } from '../fetchers/order_filled_cancelled_
 import { methodOptsSchema } from '../schemas/method_opts_schema';
 import { orderTxOptsSchema } from '../schemas/order_tx_opts_schema';
 import { txOptsSchema } from '../schemas/tx_opts_schema';
+import { validateOrderFillableOptsSchema } from '../schemas/validate_order_fillable_opts_schema';
 import {
    BlockRange,
    EventCallback,
@@ -46,8 +47,8 @@ export class ExchangeWrapper extends ContractWrapper {
    public address: string;
    public zrxTokenAddress: string;
    private _exchangeContractIfExists?: ExchangeContract;
-    private _erc721TokenWrapper: ERC721TokenWrapper;
-    private _erc20TokenWrapper: ERC20TokenWrapper;
+    private readonly _erc721TokenWrapper: ERC721TokenWrapper;
+    private readonly _erc20TokenWrapper: ERC20TokenWrapper;
    /**
     * Instantiate ExchangeWrapper
     * @param web3Wrapper Web3Wrapper instance to use.
@@ -1114,6 +1115,9 @@ export class ExchangeWrapper extends ContractWrapper {
        signedOrder: SignedOrder,
        opts: ValidateOrderFillableOpts = {},
    ): Promise<void> {
+        assert.doesConformToSchema('signedOrder', signedOrder, schemas.signedOrderSchema);
+        assert.doesConformToSchema('opts', opts, validateOrderFillableOptsSchema);
+
        const balanceAllowanceFetcher = new AssetBalanceAndProxyAllowanceFetcher(
            this._erc20TokenWrapper,
            this._erc721TokenWrapper,
@@ -1124,7 +1128,7 @@ export class ExchangeWrapper extends ContractWrapper {

        const expectedFillTakerTokenAmountIfExists = opts.expectedFillTakerTokenAmount;
        const filledCancelledFetcher = new OrderFilledCancelledFetcher(this, BlockParamLiteral.Latest);
-        const orderValidationUtils = new OrderValidationUtils(filledCancelledFetcher);
+        const orderValidationUtils = new OrderValidationUtils(filledCancelledFetcher, this._web3Wrapper.getProvider());
        await orderValidationUtils.validateOrderFillableOrThrowAsync(
            exchangeTradeSimulator,
            signedOrder,
@@ -1152,7 +1156,7 @@ export class ExchangeWrapper extends ContractWrapper {
        const exchangeTradeSimulator = new ExchangeTransferSimulator(balanceAllowanceStore);

        const filledCancelledFetcher = new OrderFilledCancelledFetcher(this, BlockParamLiteral.Latest);
-        const orderValidationUtils = new OrderValidationUtils(filledCancelledFetcher);
+        const orderValidationUtils = new OrderValidationUtils(filledCancelledFetcher, this._web3Wrapper.getProvider());
        await orderValidationUtils.validateFillOrderThrowIfInvalidAsync(
            exchangeTradeSimulator,
            this._web3Wrapper.getProvider(),
--- a/packages/contract-wrappers/src/contract_wrappers/forwarder_wrapper.ts
+++ b/packages/contract-wrappers/src/contract_wrappers/forwarder_wrapper.ts
@@ -1,7 +1,7 @@
 import { ForwarderContract } from '@0x/abi-gen-wrappers';
 import { Forwarder } from '@0x/contract-artifacts';
 import { schemas } from '@0x/json-schemas';
-import { AssetProxyId, SignedOrder } from '@0x/types';
+import { SignedOrder } from '@0x/types';
 import { BigNumber } from '@0x/utils';
 import { Web3Wrapper } from '@0x/web3-wrapper';
 import { ContractAbi } from 'ethereum-types';
@@ -118,7 +118,7 @@ export class ForwarderWrapper extends ContractWrapper {
                optimizedFeeOrders,
                feeSignatures,
                formattedFeePercentage,
-                feeRecipientAddress,
+                normalizedFeeRecipientAddress,
                {
                    value: ethAmount,
                    from: normalizedTakerAddress,
@@ -207,7 +207,7 @@ export class ForwarderWrapper extends ContractWrapper {
                optimizedFeeOrders,
                feeSignatures,
                formattedFeePercentage,
-                feeRecipientAddress,
+                normalizedFeeRecipientAddress,
                {
                    value: ethAmount,
                    from: normalizedTakerAddress,
--- a/packages/contract-wrappers/src/fetchers/order_filled_cancelled_fetcher.ts
+++ b/packages/contract-wrappers/src/fetchers/order_filled_cancelled_fetcher.ts
@@ -1,5 +1,6 @@
 // tslint:disable:no-unnecessary-type-assertion
-import { AbstractOrderFilledCancelledFetcher } from '@0x/order-utils';
+import { AbstractOrderFilledCancelledFetcher, orderHashUtils } from '@0x/order-utils';
+import { SignedOrder } from '@0x/types';
 import { BigNumber } from '@0x/utils';
 import { BlockParamLiteral } from 'ethereum-types';

@@ -18,9 +19,18 @@ export class OrderFilledCancelledFetcher implements AbstractOrderFilledCancelled
        });
        return filledTakerAmount;
    }
-    public async isOrderCancelledAsync(orderHash: string): Promise<boolean> {
+    public async isOrderCancelledAsync(signedOrder: SignedOrder): Promise<boolean> {
+        const orderHash = orderHashUtils.getOrderHashHex(signedOrder);
        const isCancelled = await this._exchange.isCancelledAsync(orderHash);
-        return isCancelled;
+        const orderEpoch = await this._exchange.getOrderEpochAsync(
+            signedOrder.makerAddress,
+            signedOrder.senderAddress,
+            {
+                defaultBlock: this._stateLayer,
+            },
+        );
+        const isCancelledByOrderEpoch = orderEpoch > signedOrder.salt;
+        return isCancelled || isCancelledByOrderEpoch;
    }
    public getZRXAssetData(): string {
        const zrxAssetData = this._exchange.getZRXAssetData();
--- a/packages/contract-wrappers/src/index.ts
+++ b/packages/contract-wrappers/src/index.ts
@@ -39,6 +39,7 @@ export { TransactionEncoder } from './utils/transaction_encoder';

 export {
    ContractWrappersError,
+    ForwarderWrapperError,
    IndexedFilterValues,
    BlockRange,
    ContractWrappersConfig,
--- a/packages/contract-wrappers/src/schemas/validate_order_fillable_opts_schema.ts
+++ b/packages/contract-wrappers/src/schemas/validate_order_fillable_opts_schema.ts
@@ -0,0 +1,7 @@
+export const validateOrderFillableOptsSchema = {
+    id: '/ValidateOrderFillableOpts',
+    properties: {
+        expectedFillTakerTokenAmount: { $ref: '/wholeNumberSchema' },
+    },
+    type: 'object',
+};
--- a/packages/contract-wrappers/src/types.ts
+++ b/packages/contract-wrappers/src/types.ts
@@ -18,6 +18,10 @@ export enum ExchangeWrapperError {
    AssetDataMismatch = 'ASSET_DATA_MISMATCH',
 }

+export enum ForwarderWrapperError {
+    CompleteFillFailed = 'COMPLETE_FILL_FAILED',
+}
+
 export enum ContractWrappersError {
    ContractNotDeployedOnNetwork = 'CONTRACT_NOT_DEPLOYED_ON_NETWORK',
    InsufficientAllowanceForTransfer = 'INSUFFICIENT_ALLOWANCE_FOR_TRANSFER',
@@ -30,6 +34,7 @@ export enum ContractWrappersError {
    SubscriptionAlreadyPresent = 'SUBSCRIPTION_ALREADY_PRESENT',
    ERC721OwnerNotFound = 'ERC_721_OWNER_NOT_FOUND',
    ERC721NoApproval = 'ERC_721_NO_APPROVAL',
+    SignatureRequestDenied = 'SIGNATURE_REQUEST_DENIED',
 }

 export enum InternalContractWrappersError {
--- a/packages/contract-wrappers/src/utils/constants.ts
+++ b/packages/contract-wrappers/src/utils/constants.ts
@@ -14,4 +14,5 @@ export const constants = {
    ZERO_AMOUNT: new BigNumber(0),
    ONE_AMOUNT: new BigNumber(1),
    ETHER_TOKEN_DECIMALS: 18,
+    USER_DENIED_SIGNATURE_PATTERN: 'User denied transaction signature',
 };
--- a/packages/contract-wrappers/src/utils/decorators.ts
+++ b/packages/contract-wrappers/src/utils/decorators.ts
@@ -29,6 +29,14 @@ const schemaErrorTransformer = (error: Error) => {
    return error;
 };

+const signatureRequestErrorTransformer = (error: Error) => {
+    if (_.includes(error.message, constants.USER_DENIED_SIGNATURE_PATTERN)) {
+        const errMsg = ContractWrappersError.SignatureRequestDenied;
+        return new Error(errMsg);
+    }
+    return error;
+};
+
 /**
 * Source: https://stackoverflow.com/a/29837695/3546986
 */
@@ -87,7 +95,11 @@ const syncErrorHandlerFactory = (errorTransformer: ErrorTransformer) => {
 };

 // _.flow(f, g) = f ∘ g
-const zeroExErrorTransformer = _.flow(schemaErrorTransformer, contractCallErrorTransformer);
+const zeroExErrorTransformer = _.flow(
+    schemaErrorTransformer,
+    contractCallErrorTransformer,
+    signatureRequestErrorTransformer,
+);

 export const decorators = {
    asyncZeroExErrorHandler: asyncErrorHandlerFactory(zeroExErrorTransformer),
--- a/packages/contract-wrappers/src/utils/utils.ts
+++ b/packages/contract-wrappers/src/utils/utils.ts
@@ -1,5 +1,6 @@
 import { BigNumber } from '@0x/utils';
 import { Web3Wrapper } from '@0x/web3-wrapper';
+import * as _ from 'lodash';

 import { constants } from './constants';

@@ -14,4 +15,7 @@ export const utils = {
    numberPercentageToEtherTokenAmountPercentage(percentage: number): BigNumber {
        return Web3Wrapper.toBaseUnitAmount(constants.ONE_AMOUNT, constants.ETHER_TOKEN_DECIMALS).mul(percentage);
    },
+    removeUndefinedProperties<T extends object>(obj: T): Partial<T> {
+        return _.pickBy(obj);
+    },
 };
--- a/packages/contract-wrappers/test/exchange_wrapper_test.ts
+++ b/packages/contract-wrappers/test/exchange_wrapper_test.ts
@@ -1,7 +1,7 @@
 import { BlockchainLifecycle, callbackErrorReporter } from '@0x/dev-utils';
 import { FillScenarios } from '@0x/fill-scenarios';
 import { assetDataUtils, orderHashUtils } from '@0x/order-utils';
-import { DoneCallback, SignedOrder } from '@0x/types';
+import { DoneCallback, RevertReason, SignedOrder } from '@0x/types';
 import { BigNumber } from '@0x/utils';
 import * as chai from 'chai';
 import { BlockParamLiteral } from 'ethereum-types';
@@ -282,6 +282,19 @@ describe('ExchangeWrapper', () => {
            expect(ordersInfo[1].orderHash).to.be.equal(anotherOrderHash);
        });
    });
+    describe('#validateOrderFillableOrThrowAsync', () => {
+        it('should throw if signature is invalid', async () => {
+            const signedOrderWithInvalidSignature = {
+                ...signedOrder,
+                signature:
+                    '0x1b61a3ed31b43c8780e905a260a35faefcc527be7516aa11c0256729b5b351bc3340349190569279751135161d22529dc25add4f6069af05be04cacbda2ace225403',
+            };
+
+            expect(
+                contractWrappers.exchange.validateOrderFillableOrThrowAsync(signedOrderWithInvalidSignature),
+            ).to.eventually.to.be.rejectedWith(RevertReason.InvalidOrderSignature);
+        });
+    });
    describe('#isValidSignature', () => {
        it('should check if the signature is valid', async () => {
            const orderHash = orderHashUtils.getOrderHashHex(signedOrder);
--- a/packages/contracts/CHANGELOG.json
+++ b/packages/contracts/CHANGELOG.json
@@ -0,0 +1,115 @@
+[
+    {
+        "name": "Forwarder",
+        "version": "1.1.0",
+        "changes": [
+            {
+                "note": "Round up when calculating remaining amounts in marketBuy functions",
+                "pr": 1162,
+                "networks": {
+                    "1": "0x5468a1dc173652ee28d249c271fa9933144746b1",
+                    "3": "0x2240dab907db71e64d3e0dba4800c83b5c502d4e",
+                    "42": "0x17992e4ffb22730138e4b62aaa6367fa9d3699a6"
+                }
+            }
+        ]
+    },
+    {
+        "name": "Forwarder",
+        "version": "1.0.0",
+        "changes": [
+            {
+                "note": "protocol v2 deploy",
+                "networks": {
+                    "1": "0x7afc2d5107af94c462a194d2c21b5bdd238709d6",
+                    "3": "0x3983e204b12b3c02fb0638caf2cd406a62e0ead3",
+                    "42": "0xd85e2fa7e7e252b27b01bf0d65c946959d2f45b8"
+                }
+            }
+        ]
+    },
+    {
+        "name": "OrderValidator",
+        "version": "1.0.0",
+        "changes": [
+            {
+                "note": "protocol v2 deploy",
+                "networks": {
+                    "1": "0x9463e518dea6810309563c81d5266c1b1d149138",
+                    "3": "0x90431a90516ab49af23a0530e04e8c7836e7122f",
+                    "42": "0xb389da3d204b412df2f75c6afb3d0a7ce0bc283d"
+                }
+            }
+        ]
+    },
+    {
+        "name": "Exchange",
+        "version": "2.0.0",
+        "changes": [
+            {
+                "note": "protocol v2 deploy",
+                "networks": {
+                    "1": "0x4f833a24e1f95d70f028921e27040ca56e09ab0b",
+                    "3": "0x4530c0483a1633c7a1c97d2c53721caff2caaaaf",
+                    "42": "0x35dd2932454449b14cee11a94d3674a936d5d7b2"
+                }
+            }
+        ]
+    },
+    {
+        "name": "ERC20Proxy",
+        "version": "1.0.0",
+        "changes": [
+            {
+                "note": "protocol v2 deploy",
+                "networks": {
+                    "1": "0x2240dab907db71e64d3e0dba4800c83b5c502d4e",
+                    "3": "0xb1408f4c245a23c31b98d2c626777d4c0d766caa",
+                    "42": "0xf1ec01d6236d3cd881a0bf0130ea25fe4234003e"
+                }
+            }
+        ]
+    },
+    {
+        "name": "ERC721Proxy",
+        "version": "1.0.0",
+        "changes": [
+            {
+                "note": "protocol v2 deploy",
+                "networks": {
+                    "1": "0x208e41fb445f1bb1b6780d58356e81405f3e6127",
+                    "3": "0xe654aac058bfbf9f83fcaee7793311dd82f6ddb4",
+                    "42": "0x2a9127c745688a165106c11cd4d647d2220af821"
+                }
+            }
+        ]
+    },
+    {
+        "name": "AssetProxyOwner",
+        "version": "1.0.0",
+        "changes": [
+            {
+                "note": "protocol v2 deploy",
+                "networks": {
+                    "1": "0x17992e4ffb22730138e4b62aaa6367fa9d3699a6",
+                    "3": "0xf5fa5b5fed2727a0e44ac67f6772e97977aa358b",
+                    "42": "0x2c824d2882baa668e0d5202b1e7f2922278703f8"
+                }
+            }
+        ]
+    },
+    {
+        "name": "ZRXToken",
+        "version": "1.0.0",
+        "changes": [
+            {
+                "note": "protocol v1 deploy",
+                "networks": {
+                    "1": "0xe41d2489571d322189246dafa5ebde1f4699f498",
+                    "3": "0xff67881f8d12f372d91baae9752eb3631ff0ed00",
+                    "42": "0x2002d3812f58e35f0ea1ffbf80a75a38c32175fa"
+                }
+            }
+        ]
+    }
+]
--- a/packages/contracts/README.md
+++ b/packages/contracts/README.md
@@ -1,32 +1,26 @@
 ## Contracts

-Smart contracts that implement the 0x protocol. Addresses of the deployed contracts can be found [here](https://0xproject.com/wiki#Deployed-Addresses).
+Smart contracts that implement the 0x protocol. Addresses of the deployed contracts can be found in the 0x [wiki](https://0xproject.com/wiki#Deployed-Addresses) or the [CHANGELOG](./CHANGELOG.json) of this package.

 ## Usage

-### 2.0.0
+Contracts that make up and interact with version 2.0.0 of the protocol can be found in the [contracts](./contracts) directory. The contents of this directory are broken down into the following subdirectories:

-Contracts that make up and interact with version 2.0.0 of the protocol can be found in the `src/2.0.0` directory. The contents of this directory are broken down into the following subdirectories:
-
-*   protocol
+*   [protocol](./contracts/protocol)
    *   This directory contains the contracts that make up version 2.0.0. A full specification can be found [here](https://github.com/0xProject/0x-protocol-specification/blob/master/v2/v2-specification.md).
-*   extensions
+*   [extensions](./contracts/extensions)
    *   This directory contains contracts that interact with the 2.0.0 contracts and will be used in production, such as the [Forwarder](https://github.com/0xProject/0x-protocol-specification/blob/master/v2/forwarder-specification.md) contract.
-*   examples
+*   [examples](./contracts/examples)
    *   This directory contains example implementations of contracts that interact with the protocol but are _not_ intended for use in production. Examples include [filter](https://github.com/0xProject/0x-protocol-specification/blob/master/v2/v2-specification.md#filter-contracts) contracts, a [Wallet](https://github.com/0xProject/0x-protocol-specification/blob/master/v2/v2-specification.md#wallet) contract, and a [Validator](https://github.com/0xProject/0x-protocol-specification/blob/master/v2/v2-specification.md#validator) contract, among others.
-*   tokens
+*   [tokens](./contracts/tokens)
    *   This directory contains implementations of different tokens and token standards, including [wETH](https://weth.io/), ZRX, [ERC20](https://github.com/ethereum/EIPs/blob/master/EIPS/eip-20.md), and [ERC721](https://github.com/ethereum/EIPs/blob/master/EIPS/eip-721.md).
-*   multisig
+*   [multisig](./contracts/multisig)
    *   This directory contains the [Gnosis MultiSigWallet](https://github.com/gnosis/MultiSigWallet) and a custom extension that adds a timelock to transactions within the MultiSigWallet.
-*   utils
+*   [utils](./contracts/utils)
    *   This directory contains libraries and utils that are shared across all of the other directories.
-*   test
+*   [test](./contracts/test)
    *   This directory contains mocks and other contracts that are used solely for testing contracts within the other directories.

-### 1.0.0
-
-Contracts that make up version 1.0.0 of the protocol can be found in `src/1.0.0`. These contracts are considered deprecated and will have limited support going forward.
-
 ## Bug bounty

 A bug bounty for the 2.0.0 contracts is ongoing! Instructions can be found [here](https://0xproject.com/wiki#Bug-Bounty).
--- a/packages/contracts/contracts/extensions/Forwarder/MixinExchangeWrapper.sol
+++ b/packages/contracts/contracts/extensions/Forwarder/MixinExchangeWrapper.sol
@@ -155,8 +155,10 @@ contract MixinExchangeWrapper is
            uint256 remainingMakerAssetFillAmount = safeSub(makerAssetFillAmount, totalFillResults.makerAssetFilledAmount);

            // Convert the remaining amount of makerAsset to buy into remaining amount
-            // of takerAsset to sell, assuming entire amount can be sold in the current order
-            uint256 remainingTakerAssetFillAmount = getPartialAmountFloor(
+            // of takerAsset to sell, assuming entire amount can be sold in the current order.
+            // We round up because the exchange rate computed by fillOrder rounds in favor
+            // of the Maker. In this case we want to overestimate the amount of takerAsset.
+            uint256 remainingTakerAssetFillAmount = getPartialAmountCeil(
                orders[i].takerAssetAmount,
                orders[i].makerAssetAmount,
                remainingMakerAssetFillAmount
@@ -224,7 +226,9 @@ contract MixinExchangeWrapper is

            // Convert the remaining amount of ZRX to buy into remaining amount
            // of WETH to sell, assuming entire amount can be sold in the current order.
-            uint256 remainingWethSellAmount = getPartialAmountFloor(
+            // We round up because the exchange rate computed by fillOrder rounds in favor
+            // of the Maker. In this case we want to overestimate the amount of takerAsset.
+            uint256 remainingWethSellAmount = getPartialAmountCeil(
                orders[i].takerAssetAmount,
                safeSub(orders[i].makerAssetAmount, orders[i].takerFee),  // our exchange rate after fees 
                remainingZrxBuyAmount
@@ -233,7 +237,7 @@ contract MixinExchangeWrapper is
            // Attempt to sell the remaining amount of WETH.
            FillResults memory singleFillResult = fillOrderNoThrow(
                orders[i],
-                safeAdd(remainingWethSellAmount, 1),  // we add 1 wei to the fill amount to make up for rounding errors
+                remainingWethSellAmount,
                signatures[i]
            );

--- a/packages/contracts/package.json
+++ b/packages/contracts/package.json
@@ -1,7 +1,7 @@
 {
    "private": true,
    "name": "contracts",
-    "version": "2.1.50",
+    "version": "2.1.52",
    "engines": {
        "node": ">=6.12"
    },
@@ -23,7 +23,7 @@
        "compile": "sol-compiler --contracts-dir contracts",
        "clean": "shx rm -rf lib generated-artifacts generated-wrappers",
        "generate_contract_wrappers": "abi-gen --abis  ${npm_package_config_abis} --template ../contract_templates/contract.handlebars --partials '../contract_templates/partials/**/*.handlebars' --output generated-wrappers --backend ethers",
-        "lint": "tslint --project . --exclude ./generated-wrappers/**/* --exclude ./generated-artifacts/**/* --exclude **/lib/**/* && yarn lint-contracts",
+        "lint": "tslint --format stylish --project . --exclude ./generated-wrappers/**/* --exclude ./generated-artifacts/**/* --exclude **/lib/**/* && yarn lint-contracts",
        "coverage:report:text": "istanbul report text",
        "coverage:report:html": "istanbul report html && open coverage/index.html",
        "profiler:report:html": "istanbul report html && open coverage/index.html",
@@ -45,12 +45,12 @@
    },
    "homepage": "https://github.com/0xProject/0x-monorepo/packages/contracts/README.md",
    "devDependencies": {
-        "@0x/abi-gen": "^1.0.14",
-        "@0x/dev-utils": "^1.0.13",
-        "@0x/sol-compiler": "^1.1.8",
-        "@0x/sol-cov": "^2.1.8",
-        "@0x/subproviders": "^2.1.0",
-        "@0x/tslint-config": "^1.0.9",
+        "@0x/abi-gen": "^1.0.15",
+        "@0x/dev-utils": "^1.0.15",
+        "@0x/sol-compiler": "^1.1.10",
+        "@0x/sol-cov": "^2.1.10",
+        "@0x/subproviders": "^2.1.2",
+        "@0x/tslint-config": "^1.0.10",
        "@types/bn.js": "^4.11.0",
        "@types/ethereumjs-abi": "^0.6.0",
        "@types/lodash": "4.14.104",
@@ -71,15 +71,15 @@
        "yargs": "^10.0.3"
    },
    "dependencies": {
-        "@0x/base-contract": "^3.0.2",
-        "@0x/order-utils": "^2.0.0",
-        "@0x/types": "^1.2.0",
-        "@0x/typescript-typings": "^3.0.3",
-        "@0x/utils": "^2.0.3",
-        "@0x/web3-wrapper": "^3.1.0",
+        "@0x/base-contract": "^3.0.4",
+        "@0x/order-utils": "^3.0.0",
+        "@0x/types": "^1.2.1",
+        "@0x/typescript-typings": "^3.0.4",
+        "@0x/utils": "^2.0.4",
+        "@0x/web3-wrapper": "^3.1.2",
        "@types/js-combinatorics": "^0.5.29",
        "bn.js": "^4.11.8",
-        "ethereum-types": "^1.1.1",
+        "ethereum-types": "^1.1.2",
        "ethereumjs-abi": "0.6.5",
        "ethereumjs-util": "^5.1.1",
        "ethers": "~4.0.4",
--- a/packages/contracts/test/extensions/forwarder.ts
+++ b/packages/contracts/test/extensions/forwarder.ts
@@ -45,6 +45,7 @@ describe(ContractName.Forwarder, () => {

    let weth: DummyERC20TokenContract;
    let zrxToken: DummyERC20TokenContract;
+    let erc20TokenA: DummyERC20TokenContract;
    let erc721Token: DummyERC721TokenContract;
    let forwarderContract: ForwarderContract;
    let wethContract: WETH9Contract;
@@ -77,7 +78,6 @@ describe(ContractName.Forwarder, () => {
        erc20Wrapper = new ERC20Wrapper(provider, usedAddresses, owner);

        const numDummyErc20ToDeploy = 3;
-        let erc20TokenA;
        [erc20TokenA, zrxToken] = await erc20Wrapper.deployDummyTokensAsync(
            numDummyErc20ToDeploy,
            constants.DUMMY_TOKEN_DECIMALS,
@@ -902,6 +902,269 @@ describe(ContractName.Forwarder, () => {
            );
            expect(forwarderEthBalance).to.be.bignumber.equal(constants.ZERO_AMOUNT);
        });
+        it('Should buy slightly greater MakerAsset when exchange rate is rounded', async () => {
+            // The 0x Protocol contracts round the exchange rate in favor of the Maker.
+            // In this case, the taker must round up how much they're going to spend, which
+            // in turn increases the amount of MakerAsset being purchased.
+            // Example:
+            //  The taker wants to buy 5 units of the MakerAsset at a rate of 3M/2T.
+            //  For every 2 units of TakerAsset, the taker will receive 3 units of MakerAsset.
+            //  To purchase 5 units, the taker must spend 10/3 = 3.33 units of TakerAssset.
+            //  However, the Taker can only spend whole units.
+            //  Spending floor(10/3) = 3 units will yield a profit of Floor(3*3/2) = Floor(4.5) = 4 units of MakerAsset.
+            //  Spending ceil(10/3) = 4 units will yield a profit of Floor(4*3/2) = 6 units of MakerAsset.
+            //
+            //  The forwarding contract will opt for the second option, which overbuys, to ensure the taker
+            //  receives at least the amount of MakerAsset they requested.
+            //
+            // Construct test case using values from example above
+            orderWithoutFee = await orderFactory.newSignedOrderAsync({
+                makerAssetAmount: new BigNumber('30'),
+                takerAssetAmount: new BigNumber('20'),
+                makerAssetData: assetDataUtils.encodeERC20AssetData(erc20TokenA.address),
+                takerAssetData: assetDataUtils.encodeERC20AssetData(weth.address),
+                makerFee: new BigNumber(0),
+                takerFee: new BigNumber(0),
+            });
+            const ordersWithoutFee = [orderWithoutFee];
+            const feeOrders: SignedOrder[] = [];
+            const desiredMakerAssetFillAmount = new BigNumber('5');
+            const makerAssetFillAmount = new BigNumber('6');
+            const ethValue = new BigNumber('4');
+            // Execute test case
+            tx = await forwarderWrapper.marketBuyOrdersWithEthAsync(
+                ordersWithoutFee,
+                feeOrders,
+                desiredMakerAssetFillAmount,
+                {
+                    value: ethValue,
+                    from: takerAddress,
+                },
+            );
+            // Fetch end balances and construct expected outputs
+            const takerEthBalanceAfter = await web3Wrapper.getBalanceInWeiAsync(takerAddress);
+            const forwarderEthBalance = await web3Wrapper.getBalanceInWeiAsync(forwarderContract.address);
+            const newBalances = await erc20Wrapper.getBalancesAsync();
+            const primaryTakerAssetFillAmount = ethValue;
+            const totalEthSpent = primaryTakerAssetFillAmount.plus(gasPrice.times(tx.gasUsed));
+            // Validate test case
+            expect(makerAssetFillAmount).to.be.bignumber.greaterThan(desiredMakerAssetFillAmount);
+            expect(takerEthBalanceAfter).to.be.bignumber.equal(takerEthBalanceBefore.minus(totalEthSpent));
+            expect(newBalances[makerAddress][defaultMakerAssetAddress]).to.be.bignumber.equal(
+                erc20Balances[makerAddress][defaultMakerAssetAddress].minus(makerAssetFillAmount),
+            );
+            expect(newBalances[takerAddress][defaultMakerAssetAddress]).to.be.bignumber.equal(
+                erc20Balances[takerAddress][defaultMakerAssetAddress].plus(makerAssetFillAmount),
+            );
+            expect(newBalances[makerAddress][weth.address]).to.be.bignumber.equal(
+                erc20Balances[makerAddress][weth.address].plus(primaryTakerAssetFillAmount),
+            );
+            expect(newBalances[forwarderContract.address][weth.address]).to.be.bignumber.equal(constants.ZERO_AMOUNT);
+            expect(newBalances[forwarderContract.address][defaultMakerAssetAddress]).to.be.bignumber.equal(
+                constants.ZERO_AMOUNT,
+            );
+            expect(forwarderEthBalance).to.be.bignumber.equal(constants.ZERO_AMOUNT);
+        });
+        it('Should buy slightly greater MakerAsset when exchange rate is rounded, and MakerAsset is ZRX', async () => {
+            // See the test case above for a detailed description of this case.
+            // The difference here is that the MakerAsset is ZRX. We expect the same result as above,
+            // but this tests a different code path.
+            //
+            // Construct test case using values from example above
+            orderWithoutFee = await orderFactory.newSignedOrderAsync({
+                makerAssetAmount: new BigNumber('30'),
+                takerAssetAmount: new BigNumber('20'),
+                makerAssetData: zrxAssetData,
+                takerAssetData: assetDataUtils.encodeERC20AssetData(weth.address),
+                makerFee: new BigNumber(0),
+                takerFee: new BigNumber(0),
+            });
+            const ordersWithoutFee = [orderWithoutFee];
+            const feeOrders: SignedOrder[] = [];
+            const desiredMakerAssetFillAmount = new BigNumber('5');
+            const makerAssetFillAmount = new BigNumber('6');
+            const ethValue = new BigNumber('4');
+            // Execute test case
+            tx = await forwarderWrapper.marketBuyOrdersWithEthAsync(
+                ordersWithoutFee,
+                feeOrders,
+                desiredMakerAssetFillAmount,
+                {
+                    value: ethValue,
+                    from: takerAddress,
+                },
+            );
+            // Fetch end balances and construct expected outputs
+            const takerEthBalanceAfter = await web3Wrapper.getBalanceInWeiAsync(takerAddress);
+            const forwarderEthBalance = await web3Wrapper.getBalanceInWeiAsync(forwarderContract.address);
+            const newBalances = await erc20Wrapper.getBalancesAsync();
+            const primaryTakerAssetFillAmount = ethValue;
+            const totalEthSpent = primaryTakerAssetFillAmount.plus(gasPrice.times(tx.gasUsed));
+            // Validate test case
+            expect(makerAssetFillAmount).to.be.bignumber.greaterThan(desiredMakerAssetFillAmount);
+            expect(takerEthBalanceAfter).to.be.bignumber.equal(takerEthBalanceBefore.minus(totalEthSpent));
+            expect(newBalances[makerAddress][zrxToken.address]).to.be.bignumber.equal(
+                erc20Balances[makerAddress][zrxToken.address].minus(makerAssetFillAmount),
+            );
+            expect(newBalances[takerAddress][zrxToken.address]).to.be.bignumber.equal(
+                erc20Balances[takerAddress][zrxToken.address].plus(makerAssetFillAmount),
+            );
+            expect(newBalances[makerAddress][weth.address]).to.be.bignumber.equal(
+                erc20Balances[makerAddress][weth.address].plus(primaryTakerAssetFillAmount),
+            );
+            expect(newBalances[forwarderContract.address][weth.address]).to.be.bignumber.equal(constants.ZERO_AMOUNT);
+            expect(forwarderEthBalance).to.be.bignumber.equal(constants.ZERO_AMOUNT);
+        });
+        it('Should buy slightly greater MakerAsset when exchange rate is rounded (Regression Test)', async () => {
+            // Order taken from a transaction on mainnet that failed due to a rounding error.
+            orderWithoutFee = await orderFactory.newSignedOrderAsync({
+                makerAssetAmount: new BigNumber('268166666666666666666'),
+                takerAssetAmount: new BigNumber('219090625878836371'),
+                makerAssetData: assetDataUtils.encodeERC20AssetData(erc20TokenA.address),
+                takerAssetData: assetDataUtils.encodeERC20AssetData(weth.address),
+                makerFee: new BigNumber(0),
+                takerFee: new BigNumber(0),
+            });
+            const ordersWithoutFee = [orderWithoutFee];
+            const feeOrders: SignedOrder[] = [];
+            // The taker will receive more than the desired amount of makerAsset due to rounding
+            const desiredMakerAssetFillAmount = new BigNumber('5000000000000000000');
+            const ethValue = new BigNumber('4084971271824171');
+            const makerAssetFillAmount = ethValue
+                .times(orderWithoutFee.makerAssetAmount)
+                .dividedToIntegerBy(orderWithoutFee.takerAssetAmount);
+            // Execute test case
+            tx = await forwarderWrapper.marketBuyOrdersWithEthAsync(
+                ordersWithoutFee,
+                feeOrders,
+                desiredMakerAssetFillAmount,
+                {
+                    value: ethValue,
+                    from: takerAddress,
+                },
+            );
+            // Fetch end balances and construct expected outputs
+            const takerEthBalanceAfter = await web3Wrapper.getBalanceInWeiAsync(takerAddress);
+            const forwarderEthBalance = await web3Wrapper.getBalanceInWeiAsync(forwarderContract.address);
+            const newBalances = await erc20Wrapper.getBalancesAsync();
+            const primaryTakerAssetFillAmount = ethValue;
+            const totalEthSpent = primaryTakerAssetFillAmount.plus(gasPrice.times(tx.gasUsed));
+            // Validate test case
+            expect(makerAssetFillAmount).to.be.bignumber.greaterThan(desiredMakerAssetFillAmount);
+            expect(takerEthBalanceAfter).to.be.bignumber.equal(takerEthBalanceBefore.minus(totalEthSpent));
+            expect(newBalances[makerAddress][defaultMakerAssetAddress]).to.be.bignumber.equal(
+                erc20Balances[makerAddress][defaultMakerAssetAddress].minus(makerAssetFillAmount),
+            );
+            expect(newBalances[takerAddress][defaultMakerAssetAddress]).to.be.bignumber.equal(
+                erc20Balances[takerAddress][defaultMakerAssetAddress].plus(makerAssetFillAmount),
+            );
+            expect(newBalances[makerAddress][weth.address]).to.be.bignumber.equal(
+                erc20Balances[makerAddress][weth.address].plus(primaryTakerAssetFillAmount),
+            );
+            expect(newBalances[forwarderContract.address][weth.address]).to.be.bignumber.equal(constants.ZERO_AMOUNT);
+            expect(newBalances[forwarderContract.address][defaultMakerAssetAddress]).to.be.bignumber.equal(
+                constants.ZERO_AMOUNT,
+            );
+            expect(forwarderEthBalance).to.be.bignumber.equal(constants.ZERO_AMOUNT);
+        });
+        it('Should buy slightly greater MakerAsset when exchange rate is rounded, and MakerAsset is ZRX (Regression Test)', async () => {
+            // Order taken from a transaction on mainnet that failed due to a rounding error.
+            orderWithoutFee = await orderFactory.newSignedOrderAsync({
+                makerAssetAmount: new BigNumber('268166666666666666666'),
+                takerAssetAmount: new BigNumber('219090625878836371'),
+                makerAssetData: zrxAssetData,
+                takerAssetData: assetDataUtils.encodeERC20AssetData(weth.address),
+                makerFee: new BigNumber(0),
+                takerFee: new BigNumber(0),
+            });
+            const ordersWithoutFee = [orderWithoutFee];
+            const feeOrders: SignedOrder[] = [];
+            // The taker will receive more than the desired amount of makerAsset due to rounding
+            const desiredMakerAssetFillAmount = new BigNumber('5000000000000000000');
+            const ethValue = new BigNumber('4084971271824171');
+            const makerAssetFillAmount = ethValue
+                .times(orderWithoutFee.makerAssetAmount)
+                .dividedToIntegerBy(orderWithoutFee.takerAssetAmount);
+            // Execute test case
+            tx = await forwarderWrapper.marketBuyOrdersWithEthAsync(
+                ordersWithoutFee,
+                feeOrders,
+                desiredMakerAssetFillAmount,
+                {
+                    value: ethValue,
+                    from: takerAddress,
+                },
+            );
+            // Fetch end balances and construct expected outputs
+            const takerEthBalanceAfter = await web3Wrapper.getBalanceInWeiAsync(takerAddress);
+            const forwarderEthBalance = await web3Wrapper.getBalanceInWeiAsync(forwarderContract.address);
+            const newBalances = await erc20Wrapper.getBalancesAsync();
+            const primaryTakerAssetFillAmount = ethValue;
+            const totalEthSpent = primaryTakerAssetFillAmount.plus(gasPrice.times(tx.gasUsed));
+            // Validate test case
+            expect(makerAssetFillAmount).to.be.bignumber.greaterThan(desiredMakerAssetFillAmount);
+            expect(takerEthBalanceAfter).to.be.bignumber.equal(takerEthBalanceBefore.minus(totalEthSpent));
+            expect(newBalances[makerAddress][zrxToken.address]).to.be.bignumber.equal(
+                erc20Balances[makerAddress][zrxToken.address].minus(makerAssetFillAmount),
+            );
+            expect(newBalances[takerAddress][zrxToken.address]).to.be.bignumber.equal(
+                erc20Balances[takerAddress][zrxToken.address].plus(makerAssetFillAmount),
+            );
+            expect(newBalances[makerAddress][weth.address]).to.be.bignumber.equal(
+                erc20Balances[makerAddress][weth.address].plus(primaryTakerAssetFillAmount),
+            );
+            expect(newBalances[forwarderContract.address][weth.address]).to.be.bignumber.equal(constants.ZERO_AMOUNT);
+            expect(forwarderEthBalance).to.be.bignumber.equal(constants.ZERO_AMOUNT);
+        });
+        it('Should buy correct MakerAsset when exchange rate is NOT rounded, and MakerAsset is ZRX (Regression Test)', async () => {
+            // An extra unit of TakerAsset was sent to the exchange contract to account for rounding errors, in Forwarder v1.
+            // Specifically, the takerFillAmount was calculated using Floor(desiredMakerAmount * exchangeRate) + 1
+            // We have since changed this to be Ceil(desiredMakerAmount * exchangeRate)
+            // These calculations produce different results when `desiredMakerAmount * exchangeRate` is an integer.
+            //
+            // This test verifies that `ceil` is sufficient:
+            //  Let TakerAssetAmount = MakerAssetAmount * 2
+            //  -> exchangeRate = TakerAssetAmount / MakerAssetAmount = (2*MakerAssetAmount)/MakerAssetAmount = 2
+            //  .: desiredMakerAmount * exchangeRate is an integer.
+            //
+            // Construct test case using values from example above
+            orderWithoutFee = await orderFactory.newSignedOrderAsync({
+                makerAssetAmount: new BigNumber('30'),
+                takerAssetAmount: new BigNumber('60'),
+                makerAssetData: zrxAssetData,
+                takerAssetData: assetDataUtils.encodeERC20AssetData(weth.address),
+                makerFee: new BigNumber(0),
+                takerFee: new BigNumber(0),
+            });
+            const ordersWithoutFee = [orderWithoutFee];
+            const feeOrders: SignedOrder[] = [];
+            const makerAssetFillAmount = new BigNumber('5');
+            const ethValue = new BigNumber('10');
+            // Execute test case
+            tx = await forwarderWrapper.marketBuyOrdersWithEthAsync(ordersWithoutFee, feeOrders, makerAssetFillAmount, {
+                value: ethValue,
+                from: takerAddress,
+            });
+            // Fetch end balances and construct expected outputs
+            const takerEthBalanceAfter = await web3Wrapper.getBalanceInWeiAsync(takerAddress);
+            const forwarderEthBalance = await web3Wrapper.getBalanceInWeiAsync(forwarderContract.address);
+            const newBalances = await erc20Wrapper.getBalancesAsync();
+            const primaryTakerAssetFillAmount = ethValue;
+            const totalEthSpent = primaryTakerAssetFillAmount.plus(gasPrice.times(tx.gasUsed));
+            // Validate test case
+            expect(takerEthBalanceAfter).to.be.bignumber.equal(takerEthBalanceBefore.minus(totalEthSpent));
+            expect(newBalances[makerAddress][zrxToken.address]).to.be.bignumber.equal(
+                erc20Balances[makerAddress][zrxToken.address].minus(makerAssetFillAmount),
+            );
+            expect(newBalances[takerAddress][zrxToken.address]).to.be.bignumber.equal(
+                erc20Balances[takerAddress][zrxToken.address].plus(makerAssetFillAmount),
+            );
+            expect(newBalances[makerAddress][weth.address]).to.be.bignumber.equal(
+                erc20Balances[makerAddress][weth.address].plus(primaryTakerAssetFillAmount),
+            );
+            expect(newBalances[forwarderContract.address][weth.address]).to.be.bignumber.equal(constants.ZERO_AMOUNT);
+            expect(forwarderEthBalance).to.be.bignumber.equal(constants.ZERO_AMOUNT);
+        });
    });
    describe('marketBuyOrdersWithEth with extra fees', () => {
        it('should buy an asset and send fee to feeRecipient', async () => {
--- a/packages/contracts/test/utils/exchange_wrapper.ts
+++ b/packages/contracts/test/utils/exchange_wrapper.ts
@@ -212,13 +212,17 @@ export class ExchangeWrapper {
        return tx;
    }
    public async getTakerAssetFilledAmountAsync(orderHashHex: string): Promise<BigNumber> {
-        const filledAmount = new BigNumber(await this._exchange.filled.callAsync(orderHashHex));
+        const filledAmount = await this._exchange.filled.callAsync(orderHashHex);
        return filledAmount;
    }
    public async isCancelledAsync(orderHashHex: string): Promise<boolean> {
        const isCancelled = await this._exchange.cancelled.callAsync(orderHashHex);
        return isCancelled;
    }
+    public async getOrderEpochAsync(makerAddress: string, senderAddress: string): Promise<BigNumber> {
+        const orderEpoch = await this._exchange.orderEpoch.callAsync(makerAddress, senderAddress);
+        return orderEpoch;
+    }
    public async getOrderInfoAsync(signedOrder: SignedOrder): Promise<OrderInfo> {
        const orderInfo = (await this._exchange.getOrderInfo.callAsync(signedOrder)) as OrderInfo;
        return orderInfo;
--- a/packages/contracts/test/utils/fill_order_combinatorial_utils.ts
+++ b/packages/contracts/test/utils/fill_order_combinatorial_utils.ts
@@ -392,7 +392,7 @@ export class FillOrderCombinatorialUtils {
        );

        // 5. If I fill it by X, what are the resulting balances/allowances/filled amounts expected?
-        const orderValidationUtils = new OrderValidationUtils(orderFilledCancelledFetcher);
+        const orderValidationUtils = new OrderValidationUtils(orderFilledCancelledFetcher, provider);
        const lazyStore = new BalanceAndProxyAllowanceLazyStore(balanceAndProxyAllowanceFetcher);
        const exchangeTransferSimulator = new ExchangeTransferSimulator(lazyStore);

--- a/packages/contracts/test/utils/forwarder_wrapper.ts
+++ b/packages/contracts/test/utils/forwarder_wrapper.ts
@@ -26,9 +26,12 @@ export class ForwarderWrapper {
        _.forEach(feeOrders, feeOrder => {
            const feeAvailable = feeOrder.makerAssetAmount.minus(feeOrder.takerFee);
            if (!remainingFeeAmount.isZero() && feeAvailable.gt(remainingFeeAmount)) {
-                wethAmount = wethAmount
-                    .plus(feeOrder.takerAssetAmount.times(remainingFeeAmount).dividedToIntegerBy(feeAvailable))
-                    .plus(1);
+                wethAmount = wethAmount.plus(
+                    feeOrder.takerAssetAmount
+                        .times(remainingFeeAmount)
+                        .dividedBy(feeAvailable)
+                        .ceil(),
+                );
                remainingFeeAmount = new BigNumber(0);
            } else if (!remainingFeeAmount.isZero()) {
                wethAmount = wethAmount.plus(feeOrder.takerAssetAmount);
--- a/packages/contracts/test/utils/simple_order_filled_cancelled_fetcher.ts
+++ b/packages/contracts/test/utils/simple_order_filled_cancelled_fetcher.ts
@@ -1,4 +1,5 @@
-import { AbstractOrderFilledCancelledFetcher } from '@0x/order-utils';
+import { AbstractOrderFilledCancelledFetcher, orderHashUtils } from '@0x/order-utils';
+import { SignedOrder } from '@0x/types';
 import { BigNumber } from '@0x/utils';

 import { ExchangeWrapper } from './exchange_wrapper';
@@ -14,9 +15,15 @@ export class SimpleOrderFilledCancelledFetcher implements AbstractOrderFilledCan
        const filledTakerAmount = new BigNumber(await this._exchangeWrapper.getTakerAssetFilledAmountAsync(orderHash));
        return filledTakerAmount;
    }
-    public async isOrderCancelledAsync(orderHash: string): Promise<boolean> {
+    public async isOrderCancelledAsync(signedOrder: SignedOrder): Promise<boolean> {
+        const orderHash = orderHashUtils.getOrderHashHex(signedOrder);
        const isCancelled = await this._exchangeWrapper.isCancelledAsync(orderHash);
-        return isCancelled;
+        const orderEpoch = await this._exchangeWrapper.getOrderEpochAsync(
+            signedOrder.makerAddress,
+            signedOrder.senderAddress,
+        );
+        const isCancelledByOrderEpoch = orderEpoch > signedOrder.salt;
+        return isCancelled || isCancelledByOrderEpoch;
    }
    public getZRXAssetData(): string {
        return this._zrxAssetData;
--- a/packages/dev-tools-pages/package.json
+++ b/packages/dev-tools-pages/package.json
@@ -1,6 +1,6 @@
 {
    "name": "@0x/dev-tools-pages",
-    "version": "0.0.2",
+    "version": "0.0.4",
    "engines": {
        "node": ">=6.12"
    },
@@ -11,12 +11,12 @@
        "build:ci": "yarn build",
        "build:dev": "../../node_modules/.bin/webpack --mode development",
        "clean": "shx rm -f public/bundle*",
-        "lint": "tslint --project . 'ts/**/*.ts' 'ts/**/*.tsx'",
+        "lint": "tslint --format stylish --project . 'ts/**/*.ts' 'ts/**/*.tsx'",
        "dev": "webpack-dev-server --mode development --content-base public"
    },
    "license": "Apache-2.0",
    "dependencies": {
-        "@0x/react-shared": "^1.0.17",
+        "@0x/react-shared": "^1.0.19",
        "basscss": "^8.0.3",
        "bowser": "^1.9.3",
        "less": "^2.7.2",
--- a/packages/dev-utils/CHANGELOG.json
+++ b/packages/dev-utils/CHANGELOG.json
@@ -1,4 +1,22 @@
 [
+    {
+        "timestamp": 1542028948,
+        "version": "1.0.15",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "version": "1.0.14",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ],
+        "timestamp": 1541740904
+    },
    {
        "version": "1.0.13",
        "changes": [
--- a/packages/dev-utils/CHANGELOG.md
+++ b/packages/dev-utils/CHANGELOG.md
@@ -5,6 +5,14 @@ Edit the package's CHANGELOG.json file only.

 CHANGELOG

+## v1.0.15 - _November 12, 2018_
+
+    * Dependencies updated
+
+## v1.0.14 - _November 9, 2018_
+
+    * Dependencies updated
+
 ## v1.0.13 - _October 18, 2018_

    * Make web3-provider-engine types a 'dependency' so it's available to users of the library (#1105)
--- a/packages/dev-utils/package.json
+++ b/packages/dev-utils/package.json
@@ -1,6 +1,6 @@
 {
    "name": "@0x/dev-utils",
-    "version": "1.0.13",
+    "version": "1.0.15",
    "engines": {
        "node": ">=6.12"
    },
@@ -17,7 +17,7 @@
        "test:coverage": "nyc npm run test --all && yarn coverage:report:lcov",
        "coverage:report:lcov": "nyc report --reporter=text-lcov > coverage/lcov.info",
        "clean": "shx rm -rf lib",
-        "lint": "tslint --project ."
+        "lint": "tslint --format stylish --project ."
    },
    "license": "Apache-2.0",
    "repository": {
@@ -29,7 +29,7 @@
    },
    "homepage": "https://github.com/0xProject/0x-monorepo/packages/dev-utils/README.md",
    "devDependencies": {
-        "@0x/tslint-config": "^1.0.9",
+        "@0x/tslint-config": "^1.0.10",
        "@types/lodash": "4.14.104",
        "@types/mocha": "^2.2.42",
        "make-promises-safe": "^1.1.0",
@@ -41,14 +41,14 @@
        "typescript": "3.0.1"
    },
    "dependencies": {
-        "@0x/subproviders": "^2.1.0",
-        "@0x/types": "^1.2.0",
-        "@0x/typescript-typings": "^3.0.3",
-        "@0x/utils": "^2.0.3",
-        "@0x/web3-wrapper": "^3.1.0",
+        "@0x/subproviders": "^2.1.2",
+        "@0x/types": "^1.2.1",
+        "@0x/typescript-typings": "^3.0.4",
+        "@0x/utils": "^2.0.4",
+        "@0x/web3-wrapper": "^3.1.2",
        "@types/web3-provider-engine": "^14.0.0",
        "chai": "^4.0.1",
-        "ethereum-types": "^1.1.1",
+        "ethereum-types": "^1.1.2",
        "lodash": "^4.17.5"
    },
    "publishConfig": {
--- a/packages/ethereum-types/CHANGELOG.json
+++ b/packages/ethereum-types/CHANGELOG.json
@@ -1,4 +1,13 @@
 [
+    {
+        "version": "1.1.2",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ],
+        "timestamp": 1541740904
+    },
    {
        "version": "1.1.1",
        "changes": [
--- a/packages/ethereum-types/CHANGELOG.md
+++ b/packages/ethereum-types/CHANGELOG.md
@@ -5,6 +5,10 @@ Edit the package's CHANGELOG.json file only.

 CHANGELOG

+## v1.1.2 - _November 9, 2018_
+
+    * Dependencies updated
+
 ## v1.1.1 - _October 18, 2018_

    * Add `JSONRPCResponseError` and error field on `JSONRPCResponsePayload`. (#1102)
--- a/packages/ethereum-types/package.json
+++ b/packages/ethereum-types/package.json
@@ -1,6 +1,6 @@
 {
    "name": "ethereum-types",
-    "version": "1.1.1",
+    "version": "1.1.2",
    "engines": {
        "node": ">=6.12"
    },
@@ -11,7 +11,7 @@
        "build": "tsc -b",
        "build:ci": "yarn build",
        "clean": "shx rm -rf lib generated_docs",
-        "lint": "tslint --project .",
+        "lint": "tslint --format stylish --project .",
        "docs:json": "typedoc --excludePrivate --excludeExternals --target ES5 --tsconfig typedoc-tsconfig.json --json $JSON_FILE_PATH $PROJECT_FILES"
    },
    "config": {
@@ -29,7 +29,7 @@
    },
    "homepage": "https://github.com/0xProject/0x-monorepo/packages/ethereum-types/README.md",
    "devDependencies": {
-        "@0x/tslint-config": "^1.0.9",
+        "@0x/tslint-config": "^1.0.10",
        "make-promises-safe": "^1.1.0",
        "shx": "^0.2.2",
        "tslint": "5.11.0",
--- a/packages/fill-scenarios/CHANGELOG.json
+++ b/packages/fill-scenarios/CHANGELOG.json
@@ -1,4 +1,22 @@
 [
+    {
+        "timestamp": 1542028948,
+        "version": "1.0.10",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ]
+    },
+    {
+        "version": "1.0.9",
+        "changes": [
+            {
+                "note": "Dependencies updated"
+            }
+        ],
+        "timestamp": 1541740904
+    },
    {
        "version": "1.0.8",
        "changes": [
--- a/packages/fill-scenarios/CHANGELOG.md
+++ b/packages/fill-scenarios/CHANGELOG.md
@@ -5,6 +5,14 @@ Edit the package's CHANGELOG.json file only.

 CHANGELOG

+## v1.0.10 - _November 12, 2018_
+
+    * Dependencies updated
+
+## v1.0.9 - _November 9, 2018_
+
+    * Dependencies updated
+
 ## v1.0.8 - _October 18, 2018_

    * Updated to use new @0xproject/contract-artifacts and @0xproject/abi-gen-wrappers packages (#1105)
--- a/packages/fill-scenarios/package.json
+++ b/packages/fill-scenarios/package.json
@@ -1,6 +1,6 @@
 {
    "name": "@0x/fill-scenarios",
-    "version": "1.0.8",
+    "version": "1.0.10",
    "description": "0x order fill scenario generator",
    "main": "lib/index.js",
    "types": "lib/index.d.ts",
@@ -8,7 +8,7 @@
        "build": "yarn tsc -b",
        "build:ci": "yarn build",
        "clean": "shx rm -rf lib src/generated_contract_wrappers",
-        "lint": "tslint --project ."
+        "lint": "tslint --format stylish --project ."
    },
    "license": "Apache-2.0",
    "repository": {
@@ -20,7 +20,7 @@
    },
    "homepage": "https://github.com/0xProject/0x-monorepo/packages/fill-scenarios/README.md",
    "devDependencies": {
-        "@0x/tslint-config": "^1.0.9",
+        "@0x/tslint-config": "^1.0.10",
        "@types/lodash": "4.14.104",
        "make-promises-safe": "^1.1.0",
        "shx": "^0.2.2",
@@ -28,15 +28,15 @@
        "typescript": "3.0.1"
    },
    "dependencies": {
-        "@0x/abi-gen-wrappers": "^1.0.1",
-        "@0x/base-contract": "^3.0.2",
-        "@0x/contract-artifacts": "^1.0.1",
-        "@0x/order-utils": "^2.0.0",
-        "@0x/types": "^1.2.0",
-        "@0x/typescript-typings": "^3.0.3",
-        "@0x/utils": "^2.0.3",
-        "@0x/web3-wrapper": "^3.1.0",
-        "ethereum-types": "^1.1.1",
+        "@0x/abi-gen-wrappers": "^1.0.3",
+        "@0x/base-contract": "^3.0.4",
+        "@0x/contract-artifacts": "^1.1.0",
+        "@0x/order-utils": "^3.0.0",
+        "@0x/types": "^1.2.1",
+        "@0x/typescript-typings": "^3.0.4",
+        "@0x/utils": "^2.0.4",
+        "@0x/web3-wrapper": "^3.1.2",
+        "ethereum-types": "^1.1.2",
        "ethers": "~4.0.4",
        "lodash": "^4.17.5"
    },
--- a/packages/instant/.dogfood.discharge.json
+++ b/packages/instant/.dogfood.discharge.json
@@ -0,0 +1,13 @@
+{
+    "domain": "0x-instant-dogfood",
+    "build_command": "yarn build:umd:prod",
+    "upload_directory": "public",
+    "index_key": "index.html",
+    "error_key": "index.html",
+    "trailing_slashes": true,
+    "cache": 3600,
+    "aws_profile": "default",
+    "aws_region": "us-east-1",
+    "cdn": false,
+    "dns_configured": true
+}
--- a/packages/instant/.staging.discharge.json
+++ b/packages/instant/.staging.discharge.json
@@ -0,0 +1,13 @@
+{
+    "domain": "0x-instant-staging",
+    "build_command": "yarn build:umd:prod",
+    "upload_directory": "public",
+    "index_key": "index.html",
+    "error_key": "index.html",
+    "trailing_slashes": true,
+    "cache": 3600,
+    "aws_profile": "default",
+    "aws_region": "us-east-1",
+    "cdn": false,
+    "dns_configured": true
+}
--- a/packages/instant/README.md
+++ b/packages/instant/README.md
@@ -46,6 +46,26 @@ The package is also available as a UMD module named `zeroExInstant`.
 </body>
 ```

+## Deploying
+
+You can deploy a work-in-progress version of 0x Instant at http://0x-instant-dogfood.s3-website-us-east-1.amazonaws.com for easy sharing.
+
+To build and deploy the site run
+
+```
+yarn deploy_dogfood
+```
+
+We also have a staging bucket that is to be updated less frequently can be used to share instant externally: http://0x-instant-staging.s3-website-us-east-1.amazonaws.com/
+
+To build and deploy to this bucket, run
+
+```
+yarn deploy_staging
+```
+
+**NOTE: On deploying the site, it will say the site is available at a non-existent URL. Please ignore and use the (now updated) URL above.**
+
 ## Contributing

 We welcome improvements and fixes from the wider community! To report bugs within this package, please create an issue in this repository.
--- a/packages/instant/package.json
+++ b/packages/instant/package.json
@@ -1,6 +1,6 @@
 {
    "name": "@0x/instant",
-    "version": "0.0.3",
+    "version": "0.0.5",
    "engines": {
        "node": ">=6.12"
    },
@@ -16,12 +16,14 @@
        "build:ci": "yarn build",
        "watch_without_deps": "tsc -w",
        "dev": "webpack-dev-server --mode development",
-        "lint": "tslint --project .",
+        "lint": "tslint --format stylish --project .",
        "test": "jest",
        "test:coverage": "jest --coverage",
        "rebuild_and_test": "run-s clean build test",
        "test:circleci": "yarn test:coverage",
        "clean": "shx rm -rf lib coverage scripts",
+        "deploy_dogfood": "discharge deploy -c .dogfood.discharge.json",
+        "deploy_staging": "discharge deploy -c .staging.discharge.json",
        "manual:postpublish": "yarn build; node ./scripts/postpublish.js"
    },
    "config": {
@@ -43,12 +45,17 @@
    },
    "homepage": "https://github.com/0xProject/0x-monorepo/packages/instant/README.md",
    "dependencies": {
-        "@0x/asset-buyer": "^2.1.0",
-        "@0x/types": "^1.2.0",
-        "@0x/typescript-typings": "^3.0.3",
-        "@0x/utils": "^2.0.3",
-        "@0x/web3-wrapper": "^3.1.0",
-        "ethereum-types": "^1.1.1",
+        "@0x/assert": "^1.0.16",
+        "@0x/asset-buyer": "^2.2.1",
+        "@0x/json-schemas": "^2.1.0",
+        "@0x/order-utils": "^3.0.0",
+        "@0x/subproviders": "^2.1.2",
+        "@0x/types": "^1.2.1",
+        "@0x/typescript-typings": "^3.0.4",
+        "@0x/utils": "^2.0.4",
+        "@0x/web3-wrapper": "^3.1.2",
+        "copy-to-clipboard": "^3.0.8",
+        "ethereum-types": "^1.1.2",
        "lodash": "^4.17.10",
        "polished": "^2.2.0",
        "react": "^16.5.2",
@@ -56,11 +63,12 @@
        "react-redux": "^5.0.7",
        "redux": "^4.0.0",
        "redux-devtools-extension": "^2.13.5",
-        "styled-components": "^3.4.9",
+        "styled-components": "^4.0.2",
        "ts-optchain": "^0.1.1"
    },
    "devDependencies": {
-        "@0x/tslint-config": "^1.0.9",
+        "@0x/tslint-config": "^1.0.10",
+        "@static/discharge": "https://github.com/0xProject/discharge.git",
        "@types/enzyme": "^3.1.14",
        "@types/enzyme-adapter-react-16": "^1.0.3",
        "@types/jest": "^23.3.5",
@@ -70,6 +78,7 @@
        "@types/react-dom": "^16.0.8",
        "@types/react-redux": "^6.0.9",
        "@types/redux": "^3.6.0",
+        "@types/styled-components": "^4.0.1",
        "awesome-typescript-loader": "^5.2.1",
        "enzyme": "^3.6.0",
        "enzyme-adapter-react-16": "^1.5.0",
--- a/packages/instant/public/external.css
+++ b/packages/instant/public/external.css
@@ -0,0 +1,25 @@
+/*
+  CSS file meant to represent an external (integrators) stylesheet and 
+  help ensure that instant looks consistent across environments. 
+*/
+
+button {
+    font-size: 50px;
+    height: 200px;
+    background-color: red;
+}
+
+input {
+    padding: 100px;
+    font-size: 50px;
+    height: 100px;
+}
+
+div {
+    padding: 3px;
+}
+
+p {
+    background-color: green;
+    margin: 10px;
+}
--- a/packages/instant/public/index.html
+++ b/packages/instant/public/index.html
@@ -5,7 +5,10 @@
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>0x Instant Dev Environment</title>
+    <link rel="stylesheet" href="/external.css">
    <script type="text/javascript" src="/main.bundle.js" charset="utf-8"></script>
+    <script type="text/javascript" src="https://unpkg.com/jsuri@1.3.1/Uri.js" charset="utf-8"></script>
+    <script type="text/javascript" src="https://unpkg.com/bignumber.js@4.1.0/bignumber.js" charset="utf-8"></script>
    <style>
        #zeroExInstantContainer {
            display: flex;
@@ -24,9 +27,110 @@
 <body>
    <div id="zeroExInstantContainer"></div>
    <script>
-        zeroExInstant.render({
-
+        const removeUndefined = (obj) => {
+            for (let k in obj) if (obj[k] === undefined) delete obj[k];
+            return obj;
+        }
+        BigNumber.config({
+            EXPONENTIAL_AT: 1000,
+            DECIMAL_PLACES: 78,
        });
+        const providedOrders = [
+            // Order selling REP
+            {
+                senderAddress: '0x0000000000000000000000000000000000000000',
+                makerAddress: '0x34a745008a643eebc58920eaa29fb1165b4a288e',
+                takerAddress: '0x0000000000000000000000000000000000000000',
+                makerFee: new BigNumber('0'),
+                takerFee: new BigNumber('0'),
+                makerAssetAmount: new BigNumber('200000000000000000000'),
+                takerAssetAmount: new BigNumber('10000000000000000000'),
+                makerAssetData: '0xf47261b00000000000000000000000008cb3971b8eb709c14616bd556ff6683019e90d9c',
+                takerAssetData: '0xf47261b0000000000000000000000000d0a1e359811322d97991e03f863a0c30c2cf029c',
+                expirationTimeSeconds: new BigNumber('1601535600'),
+                feeRecipientAddress: '0x0000000000000000000000000000000000000000',
+                salt: new BigNumber('3101985707338942582579795423923841749956600670712030922928319824580764688653'),
+                signature: '0x1bd4d5686fea801fe33c68c4944356085e7e6cb553eb7073160abd815609f714e85fb47f44b7ffd0a2a1321ac40d72d55163869d0a50fdb5a402132150fe33a08403',
+                exchangeAddress: '0x35dd2932454449b14cee11a94d3674a936d5d7b2'
+            },
+            // Order selling ZRX
+            {
+                senderAddress: '0x0000000000000000000000000000000000000000',
+                makerAddress: '0x34a745008a643eebc58920eaa29fb1165b4a288e',
+                takerAddress: '0x0000000000000000000000000000000000000000',
+                makerFee: new BigNumber('0'),
+                takerFee: new BigNumber('0'),
+                makerAssetAmount: new BigNumber('300000000000000000000'),
+                takerAssetAmount: new BigNumber('31000000000000000000'),
+                makerAssetData: '0xf47261b00000000000000000000000002002d3812f58e35f0ea1ffbf80a75a38c32175fa',
+                takerAssetData: '0xf47261b0000000000000000000000000d0a1e359811322d97991e03f863a0c30c2cf029c',
+                expirationTimeSeconds: new BigNumber('2524636800'),
+                feeRecipientAddress: '0x0000000000000000000000000000000000000000',
+                salt: new BigNumber('64592004666704945574675477805199411288137454783320798602050822322450089238268'),
+                signature: '0x1c13cacddca8d7d8248e91f412377e68f8f1f9891a59a6c1b2eea9f7b33558c30c4fb86a448e08ab7def40a28fb3a3062dcb33bb3c45302447fce5c4288b7c7f5b03',
+                exchangeAddress: '0x35dd2932454449b14cee11a94d3674a936d5d7b2'
+            },
+            // Order selling GNT
+            {
+                senderAddress: '0x0000000000000000000000000000000000000000',
+                makerAddress: '0x34a745008a643eebc58920eaa29fb1165b4a288e',
+                takerAddress: '0x0000000000000000000000000000000000000000',
+                makerFee: new BigNumber('0'),
+                takerFee: new BigNumber('0'),
+                makerAssetAmount: new BigNumber('250000000000000000000'),
+                takerAssetAmount: new BigNumber('10000000000000000000'),
+                makerAssetData: '0xf47261b000000000000000000000000031fb614e223706f15d0d3c5f4b08bdf0d5c78623',
+                takerAssetData: '0xf47261b0000000000000000000000000d0a1e359811322d97991e03f863a0c30c2cf029c',
+                expirationTimeSeconds: new BigNumber('1601535600'),
+                feeRecipientAddress: '0x0000000000000000000000000000000000000000',
+                salt: new BigNumber('40204378562212615907903051460421336779451270522691667164301816101569427926606'),
+                signature: '0x1c788bf4b93769da1e8f195f52f0f59b4a298ac6da30cf6d05a87ed4be5ee974f61352ed1bc6a0844d0962b8c894c9ca08e452431255958a4e98dd93cbe1fbc73803',
+                exchangeAddress: '0x35dd2932454449b14cee11a94d3674a936d5d7b2'
+            },
+            // Order selling MKR
+            {
+                senderAddress: '0x0000000000000000000000000000000000000000',
+                makerAddress: '0x34a745008a643eebc58920eaa29fb1165b4a288e',
+                takerAddress: '0x0000000000000000000000000000000000000000',
+                makerFee: new BigNumber('0'),
+                takerFee: new BigNumber('0'),
+                makerAssetAmount: new BigNumber('200000000000000000000'),
+                takerAssetAmount: new BigNumber('5000000000000000000'),
+                makerAssetData: '0xf47261b00000000000000000000000007b6b10caa9e8e9552ba72638ea5b47c25afea1f3',
+                takerAssetData: '0xf47261b0000000000000000000000000d0a1e359811322d97991e03f863a0c30c2cf029c',
+                expirationTimeSeconds: new BigNumber('1601535600'),
+                feeRecipientAddress: '0x0000000000000000000000000000000000000000',
+                salt: new BigNumber('71338269924068280039932133924198049371838034090153601678083172009862985793828'),
+                signature: '0x1bb3151d57ee1e8fa697767ce83ee4ba77d1ceb8cc1e79c7d77126b3687517704c50c6b3d9cb42c7e7d4478d574b297dfbd1626c5c18a7bc9c2a792c4c07f0797c03',
+                exchangeAddress: '0x35dd2932454449b14cee11a94d3674a936d5d7b2'
+            }
+        ];
+        const queryParams = new Uri(window.location.search);
+        const renderOptionsDefaults = {
+            orderSource: 'https://api.radarrelay.com/0x/v2/',
+            onClose: () => { console.log('0x Instant Closed') }
+        }
+        const orderSourceOverride = queryParams.getQueryParamValue('orderSource');
+        const availableAssetDatasString = queryParams.getQueryParamValue('availableAssetDatas');
+        const feeRecipientOverride = queryParams.getQueryParamValue('feeRecipient');
+        const feePercentageOverride = +queryParams.getQueryParamValue('feePercentage');
+        let affiliateInfoOverride;
+        if (feeRecipientOverride !== undefined && feePercentageOverride !== undefined) {
+            affiliateInfoOverride = {
+                feeRecipient: feeRecipientOverride,
+                feePercentage: feePercentageOverride
+            };
+        }
+        const renderOptionsOverrides = {
+            orderSource: orderSourceOverride === 'provided' ? providedOrders : orderSourceOverride,
+            networkId: +queryParams.getQueryParamValue('networkId') || undefined,
+            defaultAssetBuyAmount: +queryParams.getQueryParamValue('defaultAssetBuyAmount') || undefined,
+            availableAssetDatas: availableAssetDatasString ? JSON.parse(availableAssetDatasString) : undefined,
+            defaultSelectedAssetData: queryParams.getQueryParamValue('defaultSelectedAssetData'),
+            affiliateInfo: affiliateInfoOverride,
+        }
+        const renderOptions = Object.assign({}, renderOptionsDefaults, removeUndefined(renderOptionsOverrides));
+        zeroExInstant.render(renderOptions);
    </script>
 </body>

--- a/packages/instant/src/components/amount_input.tsx
+++ b/packages/instant/src/components/amount_input.tsx
@@ -1,49 +0,0 @@
-import { BigNumber } from '@0x/utils';
-import * as _ from 'lodash';
-import * as React from 'react';
-
-import { ColorOption } from '../style/theme';
-import { util } from '../util/util';
-
-import { Container, Input } from './ui';
-
-export interface AmountInputProps {
-    fontColor?: ColorOption;
-    fontSize?: string;
-    value?: BigNumber;
-    onChange: (value?: BigNumber) => void;
-}
-
-export class AmountInput extends React.Component<AmountInputProps> {
-    public static defaultProps = {
-        onChange: util.boundNoop,
-    };
-    public render(): React.ReactNode {
-        const { fontColor, fontSize, value } = this.props;
-        return (
-            <Container borderBottom="1px solid rgba(255,255,255,0.3)" display="inline-block">
-                <Input
-                    fontColor={fontColor}
-                    fontSize={fontSize}
-                    onChange={this._handleChange}
-                    value={!_.isUndefined(value) ? value.toString() : ''}
-                    placeholder="0.00"
-                    width="2.2em"
-                />
-            </Container>
-        );
-    }
-    private readonly _handleChange = (event: React.ChangeEvent<HTMLInputElement>): void => {
-        const value = event.target.value;
-        let bigNumberValue;
-        if (!_.isEmpty(value)) {
-            try {
-                bigNumberValue = new BigNumber(event.target.value);
-            } catch {
-                // We don't want to allow values that can't be a BigNumber, so don't even call onChange.
-                return;
-            }
-        }
-        this.props.onChange(bigNumberValue);
-    };
-}
--- a/packages/instant/src/components/amount_placeholder.tsx
+++ b/packages/instant/src/components/amount_placeholder.tsx
@@ -0,0 +1,32 @@
+import * as React from 'react';
+
+import { ColorOption } from '../style/theme';
+
+import { Pulse } from './animations/pulse';
+
+import { Text } from './ui/text';
+
+interface PlainPlaceholder {
+    color: ColorOption;
+}
+const PlainPlaceholder: React.StatelessComponent<PlainPlaceholder> = props => (
+    <Text fontWeight="bold" fontColor={props.color}>
+        &mdash;
+    </Text>
+);
+
+export interface AmountPlaceholderProps {
+    color: ColorOption;
+    isPulsating: boolean;
+}
+export const AmountPlaceholder: React.StatelessComponent<AmountPlaceholderProps> = props => {
+    if (props.isPulsating) {
+        return (
+            <Pulse>
+                <PlainPlaceholder color={props.color} />
+            </Pulse>
+        );
+    } else {
+        return <PlainPlaceholder color={props.color} />;
+    }
+};
--- a/packages/instant/src/components/animations/full_rotation.tsx
+++ b/packages/instant/src/components/animations/full_rotation.tsx
@@ -0,0 +1,24 @@
+import { keyframes, styled } from '../../style/theme';
+
+interface FullRotationProps {
+    height: string;
+    width: string;
+}
+const rotatingKeyframes = keyframes`
+from {
+  transform: rotate(0deg);
+}
+
+to {
+  transform: rotate(360deg);
+}
+`;
+
+export const FullRotation =
+    styled.div <
+    FullRotationProps >
+    `
+    animation: ${rotatingKeyframes} 2s linear infinite;
+    height: ${props => props.height};
+    width: ${props => props.width};
+`;
--- a/Show More
+++ b/Show More