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feat: PancakeSwap 2 integration [TKR-83] (#211)

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* feat: PancakeSwap 2 integration

* chore: add PancakeSwap V2 changelog entry

Co-authored-by: Romain Butteaud <romain@0xproject.com>
This commit is contained in:
Kim Persson
2021-04-27 00:51:04 +02:00
committed by GitHub
parent 9a17ce1383
commit 411548a33e
7 changed files with 40 additions and 1 deletions
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9
packages/asset-swapper/CHANGELOG.json
View File

@@ -1,4 +1,13 @@
[
{
"version": "6.7.0",
"changes": [
{
"note": "Support PancakeSwap V2",
"pr": 211
}
]
},
{
"version": "6.6.1",
"changes": [

6
packages/asset-swapper/src/utils/market_operation_utils/bridge_source_utils.ts
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@@ -15,6 +15,7 @@ import {
NERVE_BSC_INFOS,
NULL_ADDRESS,
PANCAKESWAP_ROUTER_BY_CHAIN_ID,
PANCAKESWAP_V2_ROUTER_BY_CHAIN_ID,
SADDLE_MAINNET_INFOS,
SHELL_POOLS_BY_CHAIN_ID,
SMOOTHY_BSC_INFOS,
@@ -253,7 +254,8 @@ export function uniswapV2LikeRouterAddress(
| ERC20BridgeSource.CryptoCom
| ERC20BridgeSource.PancakeSwap
| ERC20BridgeSource.BakerySwap
| ERC20BridgeSource.KyberDmm,
| ERC20BridgeSource.KyberDmm
| ERC20BridgeSource.PancakeSwapV2,
): string {
switch (source) {
case ERC20BridgeSource.UniswapV2:
@@ -268,6 +270,8 @@ export function uniswapV2LikeRouterAddress(
return BAKERYSWAP_ROUTER_BY_CHAIN_ID[chainId];
case ERC20BridgeSource.KyberDmm:
return KYBER_DMM_ROUTER_BY_CHAIN_ID[chainId];
case ERC20BridgeSource.PancakeSwapV2:
return PANCAKESWAP_V2_ROUTER_BY_CHAIN_ID[chainId];
default:
throw new Error(`Unknown UniswapV2 like source ${source}`);
}

18
packages/asset-swapper/src/utils/market_operation_utils/constants.ts
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@@ -109,6 +109,7 @@ export const SELL_SOURCE_FILTER_BY_CHAIN_ID = valueByChainId<SourceFilters>(
ERC20BridgeSource.PancakeSwap,
ERC20BridgeSource.SushiSwap,
ERC20BridgeSource.Smoothy,
ERC20BridgeSource.PancakeSwapV2,
]),
},
@@ -170,6 +171,7 @@ export const BUY_SOURCE_FILTER_BY_CHAIN_ID = valueByChainId<SourceFilters>(
ERC20BridgeSource.PancakeSwap,
ERC20BridgeSource.SushiSwap,
ERC20BridgeSource.Smoothy,
ERC20BridgeSource.PancakeSwapV2,
]),
},
new SourceFilters([]),
@@ -990,6 +992,13 @@ export const PANCAKESWAP_ROUTER_BY_CHAIN_ID = valueByChainId<string>(
NULL_ADDRESS,
);
export const PANCAKESWAP_V2_ROUTER_BY_CHAIN_ID = valueByChainId<string>(
{
[ChainId.BSC]: '0x10ed43c718714eb63d5aa57b78b54704e256024e',
},
NULL_ADDRESS,
);
export const BAKERYSWAP_ROUTER_BY_CHAIN_ID = valueByChainId<string>(
{
[ChainId.BSC]: '0xcde540d7eafe93ac5fe6233bee57e1270d3e330f',
@@ -1136,6 +1145,15 @@ export const DEFAULT_GAS_SCHEDULE: Required<FeeSchedule> = {
}
return gas;
},
[ERC20BridgeSource.PancakeSwapV2]: (fillData?: FillData) => {
// TODO: Different base cost if to/from ETH.
let gas = 90e3;
const path = (fillData as UniswapV2FillData).tokenAddressPath;
if (path.length > 2) {
gas += (path.length - 2) * 60e3; // +60k for each hop.
}
return gas;
},
};
export const DEFAULT_FEE_SCHEDULE: Required<FeeSchedule> = { ...DEFAULT_GAS_SCHEDULE };

4
packages/asset-swapper/src/utils/market_operation_utils/orders.ts
View File

@@ -134,6 +134,8 @@ export function getErc20BridgeSourceToBridgeSource(source: ERC20BridgeSource): s
return encodeBridgeSourceId(BridgeProtocol.Curve, 'Smoothy');
case ERC20BridgeSource.Saddle:
return encodeBridgeSourceId(BridgeProtocol.Nerve, 'Saddle');
case ERC20BridgeSource.PancakeSwapV2:
return encodeBridgeSourceId(BridgeProtocol.UniswapV2, 'PancakeSwapV2');
default:
throw new Error(AggregationError.NoBridgeForSource);
}
@@ -187,6 +189,7 @@ export function createBridgeDataForBridgeOrder(order: OptimizedMarketBridgeOrder
case ERC20BridgeSource.PancakeSwap:
case ERC20BridgeSource.BakerySwap:
case ERC20BridgeSource.KyberDmm:
case ERC20BridgeSource.PancakeSwapV2:
const uniswapV2FillData = (order as OptimizedMarketBridgeOrder<UniswapV2FillData>).fillData;
bridgeData = encoder.encode([uniswapV2FillData.router, uniswapV2FillData.tokenAddressPath]);
break;
@@ -334,6 +337,7 @@ export const BRIDGE_ENCODERS: {
// BSC
[ERC20BridgeSource.PancakeSwap]: routerAddressPathEncoder,
[ERC20BridgeSource.BakerySwap]: routerAddressPathEncoder,
[ERC20BridgeSource.PancakeSwapV2]: routerAddressPathEncoder,
};
function getFillTokenAmounts(fill: CollapsedFill, side: MarketOperation): [BigNumber, BigNumber] {

2
packages/asset-swapper/src/utils/market_operation_utils/sampler_operations.ts
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@@ -1088,6 +1088,7 @@ export class SamplerOperations {
case ERC20BridgeSource.PancakeSwap:
case ERC20BridgeSource.BakerySwap:
case ERC20BridgeSource.KyberDmm:
case ERC20BridgeSource.PancakeSwapV2:
const uniLikeRouter = uniswapV2LikeRouterAddress(this.chainId, source);
if (!isValidAddress(uniLikeRouter)) {
return [];
@@ -1297,6 +1298,7 @@ export class SamplerOperations {
case ERC20BridgeSource.PancakeSwap:
case ERC20BridgeSource.BakerySwap:
case ERC20BridgeSource.KyberDmm:
case ERC20BridgeSource.PancakeSwapV2:
const uniLikeRouter = uniswapV2LikeRouterAddress(this.chainId, source);
if (!isValidAddress(uniLikeRouter)) {
return [];

1
packages/asset-swapper/src/utils/market_operation_utils/types.ts
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@@ -69,6 +69,7 @@ export enum ERC20BridgeSource {
Nerve = 'Nerve',
Belt = 'Belt',
Ellipsis = 'Ellipsis',
PancakeSwapV2 = 'PancakeSwap_V2',
}
// tslint:disable: enum-naming

1
packages/asset-swapper/test/market_operation_utils_test.ts
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@@ -72,6 +72,7 @@ const DEFAULT_EXCLUDED = [
ERC20BridgeSource.Smoothy,
ERC20BridgeSource.Component,
ERC20BridgeSource.Saddle,
ERC20BridgeSource.PancakeSwapV2,
];
const BUY_SOURCES = BUY_SOURCE_FILTER_BY_CHAIN_ID[ChainId.Mainnet].sources;
const SELL_SOURCES = SELL_SOURCE_FILTER_BY_CHAIN_ID[ChainId.Mainnet].sources;