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* v4 FillQuoteTransformer (#104) * Update FQT to support v4 orders * `@0x/contracts-zero-ex`: Tweak FQT `@0x/contracts-zero-ex`: Drop `ERC20BridgeTransfer` event and add `PartialQuoteFill` event. * `@0x/contracts-utils`: Add `LibSafeMathV06.downcastToUint128()` * `@0x/protocol-utils`: Update transformer utils for V4 FQT * `@0x/contracts-zero-ex`: Fixing FQT tests... * `@0x/contracts-zero-ex`: rename FQT bridge event * `@0x/contracts-zero-ex`: Un-`only` tests * `@0x/migrations`: Update `BridgeAdapter` deployment * `@0x/contracts-integrations`: Delete `mtx_tests` * `@0x/protocol-utils`: Address review comments * `@0x/contracts-zero-ex`: Address review comments * `@0x/migrations`: Update migrations Co-authored-by: Michael Zhu <mchl.zhu.96@gmail.com> Co-authored-by: Lawrence Forman <me@merklejerk.com> * v4: Asset-swapper (main branch) (#113) * refactor quote_requestor * WIP v4/asset-swapper: Clean up SwapQuoter and remove @0x/orderbook * Start replacing SignedOrder everywhere * wip: new order type * wip * remove order-utils from most places * hack: Play around with VerboseX types (#119) * hack: Play around with VerboseX types * More hacks * Fix up the bridgeData encodings * Rework Orderbook return type * feat: Don't charge a protocol fee for RFQ orders WIP (#121) * fix simple build errors * simplify types a little * remove SwapQuoteCalculator: unnecessary abstraction * Fix all ./src build errors; make types consistent * export more types for use in 0x API; modify Orderbook interface * stop overriding APIOrder * feat: RFQ v4 + consolidated bridge encoders (#125) * feat: check if taker address is contract * Rework bridge data * Worst case adjustments * RFQT v4 * Future/v4 validate orders (#126) * RFQT v4 * v4 validate native orders * use default invalid signature * refactor rfqt validations in swap quoter * fix types * fix RFQT unlisted api key * remove priceAwareRFQFlag * adjust maker/taker amounts * update JSON schemas * filter zero fillable orders Co-authored-by: xianny <xianny@gmail.com> * fix type export Co-authored-by: xianny <xianny@gmail.com> * remove order-utils as much as possible * work on tests compile * Comment out quote reporter test * updated tests * restore order-utils accidental changes * some lints * Remove old fill_test * ts lint disable for now * update quote report * Re-enable quote report tests * make fill data required field * fix lint * type guards * force fillData as required * fix lint * fix naming * exports * adjust MultiBridge by slippage * cleanups (checkpoint 1) * cleanup types (checkpoint #2) * remove unused deps * `@0x/contract-addresses`: Deploy new FQT (#129) Co-authored-by: Lawrence Forman <me@merklejerk.com> * commit bump to republish * DRY up the rfqt mocker * fix: Balancer load top pools (#131) * fix: Balancer load top 250 pools * refetch top pools on an interval Co-authored-by: Jacob Evans <jacob@dekz.net> Co-authored-by: Kim Persson <kimpers@users.noreply.github.com> Co-authored-by: Lawrence Forman <lawrence@0xproject.com> Co-authored-by: Lawrence Forman <me@merklejerk.com> * Update post rebase * prettier * Remove test helpers exported in asset-swapper * Clean up from review comments * prettier * lint * recreate rfqt mocker * change merge and INVALID_SIGNATURE Co-authored-by: Lawrence Forman <lawrence@0xproject.com> Co-authored-by: Michael Zhu <mchl.zhu.96@gmail.com> Co-authored-by: Lawrence Forman <me@merklejerk.com> Co-authored-by: Xianny <8582774+xianny@users.noreply.github.com> Co-authored-by: Kim Persson <kimpers@users.noreply.github.com>
@0x/asset-swapper
Convenience package for swapping assets represented on the Ethereum blockchain using 0x. The package helps to perform all the off-chain computations to execute a marketBuy or marketSell function execution with 0x exchange contracts, or 0x extension contracts. Given some liquidity (0x signed orders), it helps estimate the cost of buying or selling a certain asset (giving a range) and then provide varying consumable outputs to execute the buy or sell.
Asset-swapper integrates with the Standard Relayer API(in the future Mesh as well) and takes care of sourcing liquidity, order-pruning, and order-validation. The final result is a library that tells you what assets are available, provides a quote based on specified assets, and provide varying consumable metadata that can be used both on-chain in smart contracts or off-chain through web3 to swap a desired amount of ERC20 for another ERC20 asset.
Installation
yarn add @0x/asset-swapper
Import
import { SwapQuoter } from '@0x/asset-swapper';
or
var SwapQuoter = require('@0x/asset-swapper').SwapQuoter;
var SwapQuoteConsumer = require('@0x/asset-swapper').SwapQuoteConsumer;
If your project is in TypeScript, add the following to your tsconfig.json:
"compilerOptions": {
"typeRoots": ["node_modules/@0x/typescript-typings/types", "node_modules/@types"],
}
Contributing
We welcome improvements and fixes from the wider community! To report bugs within this package, please create an issue in this repository.
Please read our contribution guidelines before getting started.
Install dependencies
If you don't have yarn workspaces enabled (Yarn < v1.0) - enable them:
yarn config set workspaces-experimental true
Then install dependencies
yarn install
Build
To build this package and all other monorepo packages that it depends on, run the following from the monorepo root directory:
PKG=@0x/asset-swapper yarn build
Or continuously rebuild on change:
PKG=@0x/asset-swapper yarn watch
Clean
yarn clean
Lint
yarn lint
Run Tests
yarn test