quickswap-smart-order-router
Version:
QuickSwap Smart Order Router
167 lines • 17.9 kB
JavaScript
import _ from 'lodash';
import stats from 'stats-lite';
import { UniswapInterfaceMulticall__factory } from '../types/v3/factories/UniswapInterfaceMulticall__factory';
import { ChainId } from '../util';
import { UNISWAP_MULTICALL_ADDRESS } from '../util/addresses';
import { log } from '../util/log';
import { IMulticallProvider, } from './multicall-provider';
const contractAddressByChain = {
[ChainId.MAINNET]: UNISWAP_MULTICALL_ADDRESS,
[ChainId.RINKEBY]: UNISWAP_MULTICALL_ADDRESS,
[ChainId.KOVAN]: UNISWAP_MULTICALL_ADDRESS,
[ChainId.ROPSTEN]: UNISWAP_MULTICALL_ADDRESS,
[ChainId.GÖRLI]: UNISWAP_MULTICALL_ADDRESS,
};
/**
* The UniswapMulticall contract has added functionality for limiting the amount of gas
* that each call within the multicall can consume. This is useful for operations where
* a call could consume such a large amount of gas that it causes the node to error out
* with an out of gas error.
*
* @export
* @class UniswapMulticallProvider
*/
export class UniswapMulticallProvider extends IMulticallProvider {
constructor(chainId, provider, gasLimitPerCall = 1000000, multicallAddressOverride = UNISWAP_MULTICALL_ADDRESS) {
super();
this.chainId = chainId;
this.provider = provider;
this.gasLimitPerCall = gasLimitPerCall;
this.multicallAddressOverride = multicallAddressOverride;
const multicallAddress = multicallAddressOverride
? multicallAddressOverride
: contractAddressByChain[this.chainId];
if (!multicallAddress) {
throw new Error(`No address for Uniswap Multicall Contract on chain id: ${chainId}`);
}
this.multicallContract = UniswapInterfaceMulticall__factory.connect(multicallAddress, this.provider);
}
async callSameFunctionOnMultipleContracts(params) {
var _a;
const { addresses, contractInterface, functionName, functionParams, providerConfig, } = params;
const blockNumberOverride = (_a = providerConfig === null || providerConfig === void 0 ? void 0 : providerConfig.blockNumber) !== null && _a !== void 0 ? _a : undefined;
const fragment = contractInterface.getFunction(functionName);
const callData = contractInterface.encodeFunctionData(fragment, functionParams);
const calls = _.map(addresses, (address) => {
return {
target: address,
callData,
gasLimit: this.gasLimitPerCall,
};
});
log.debug({ calls }, `About to multicall for ${functionName} across ${addresses.length} addresses`);
const { blockNumber, returnData: aggregateResults } = await this.multicallContract.callStatic.multicall(calls, {
blockTag: blockNumberOverride,
});
const results = [];
for (let i = 0; i < aggregateResults.length; i++) {
const { success, returnData } = aggregateResults[i];
// Return data "0x" is sometimes returned for invalid calls.
if (!success || returnData.length <= 2) {
log.debug({ result: aggregateResults[i] }, `Invalid result calling ${functionName} on address ${addresses[i]}`);
results.push({
success: false,
returnData,
});
continue;
}
results.push({
success: true,
result: contractInterface.decodeFunctionResult(fragment, returnData),
});
}
log.debug({ results }, `Results for multicall on ${functionName} across ${addresses.length} addresses as of block ${blockNumber}`);
return { blockNumber, results };
}
async callSameFunctionOnContractWithMultipleParams(params) {
var _a, _b;
const { address, contractInterface, functionName, functionParams, additionalConfig, providerConfig, } = params;
const fragment = contractInterface.getFunction(functionName);
const gasLimitPerCall = (_a = additionalConfig === null || additionalConfig === void 0 ? void 0 : additionalConfig.gasLimitPerCallOverride) !== null && _a !== void 0 ? _a : this.gasLimitPerCall;
const blockNumberOverride = (_b = providerConfig === null || providerConfig === void 0 ? void 0 : providerConfig.blockNumber) !== null && _b !== void 0 ? _b : undefined;
const calls = _.map(functionParams, (functionParam) => {
const callData = contractInterface.encodeFunctionData(fragment, functionParam);
return {
target: address,
callData,
gasLimit: gasLimitPerCall,
};
});
log.debug({ calls }, `About to multicall for ${functionName} at address ${address} with ${functionParams.length} different sets of params`);
const { blockNumber, returnData: aggregateResults } = await this.multicallContract.callStatic.multicall(calls, {
blockTag: blockNumberOverride,
});
const results = [];
const gasUsedForSuccess = [];
for (let i = 0; i < aggregateResults.length; i++) {
const { success, returnData, gasUsed } = aggregateResults[i];
// Return data "0x" is sometimes returned for invalid pools.
if (!success || returnData.length <= 2) {
log.debug({ result: aggregateResults[i] }, `Invalid result calling ${functionName} with params ${functionParams[i]}`);
results.push({
success: false,
returnData,
});
continue;
}
gasUsedForSuccess.push(gasUsed.toNumber());
results.push({
success: true,
result: contractInterface.decodeFunctionResult(fragment, returnData),
});
}
log.debug({ results, functionName, address }, `Results for multicall for ${functionName} at address ${address} with ${functionParams.length} different sets of params. Results as of block ${blockNumber}`);
return {
blockNumber,
results,
approxGasUsedPerSuccessCall: stats.percentile(gasUsedForSuccess, 99),
};
}
async callMultipleFunctionsOnSameContract(params) {
var _a, _b;
const { address, contractInterface, functionNames, functionParams, additionalConfig, providerConfig, } = params;
const gasLimitPerCall = (_a = additionalConfig === null || additionalConfig === void 0 ? void 0 : additionalConfig.gasLimitPerCallOverride) !== null && _a !== void 0 ? _a : this.gasLimitPerCall;
const blockNumberOverride = (_b = providerConfig === null || providerConfig === void 0 ? void 0 : providerConfig.blockNumber) !== null && _b !== void 0 ? _b : undefined;
const calls = _.map(functionNames, (functionName, i) => {
const fragment = contractInterface.getFunction(functionName);
const param = functionParams ? functionParams[i] : [];
const callData = contractInterface.encodeFunctionData(fragment, param);
return {
target: address,
callData,
gasLimit: gasLimitPerCall,
};
});
log.debug({ calls }, `About to multicall for ${functionNames.length} functions at address ${address} with ${functionParams === null || functionParams === void 0 ? void 0 : functionParams.length} different sets of params`);
const { blockNumber, returnData: aggregateResults } = await this.multicallContract.callStatic.multicall(calls, {
blockTag: blockNumberOverride,
});
const results = [];
const gasUsedForSuccess = [];
for (let i = 0; i < aggregateResults.length; i++) {
const fragment = contractInterface.getFunction(functionNames[i]);
const { success, returnData, gasUsed } = aggregateResults[i];
// Return data "0x" is sometimes returned for invalid pools.
if (!success || returnData.length <= 2) {
log.debug({ result: aggregateResults[i] }, `Invalid result calling ${functionNames[i]} with ${functionParams ? functionParams[i] : '0'} params`);
results.push({
success: false,
returnData,
});
continue;
}
gasUsedForSuccess.push(gasUsed.toNumber());
results.push({
success: true,
result: contractInterface.decodeFunctionResult(fragment, returnData),
});
}
log.debug({ results, functionNames, address }, `Results for multicall for ${functionNames.length} functions at address ${address} with ${functionParams ? functionParams.length : ' 0'} different sets of params. Results as of block ${blockNumber}`);
return {
blockNumber,
results,
approxGasUsedPerSuccessCall: stats.percentile(gasUsedForSuccess, 99),
};
}
}
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