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813 lines
24 KiB
813 lines
24 KiB
import { createSlice } from '@reduxjs/toolkit';
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import BigNumber from 'bignumber.js';
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import log from 'loglevel';
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import { captureMessage } from '@sentry/browser';
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import {
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addToken,
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addUnapprovedTransaction,
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fetchAndSetQuotes,
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forceUpdateMetamaskState,
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resetSwapsPostFetchState,
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setBackgroundSwapRouteState,
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setInitialGasEstimate,
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setSwapsErrorKey,
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setSwapsTxGasPrice,
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setApproveTxId,
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setTradeTxId,
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stopPollingForQuotes,
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updateAndApproveTx,
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updateTransaction,
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resetBackgroundSwapsState,
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setSwapsLiveness,
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setSelectedQuoteAggId,
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setSwapsTxGasLimit,
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cancelTx,
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} from '../../store/actions';
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import {
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AWAITING_SWAP_ROUTE,
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BUILD_QUOTE_ROUTE,
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LOADING_QUOTES_ROUTE,
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SWAPS_ERROR_ROUTE,
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SWAPS_MAINTENANCE_ROUTE,
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} from '../../helpers/constants/routes';
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import {
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fetchSwapsFeatureLiveness,
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fetchSwapsGasPrices,
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isContractAddressValid,
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} from '../../pages/swaps/swaps.util';
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import { calcGasTotal } from '../../pages/send/send.utils';
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import {
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decimalToHex,
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getValueFromWeiHex,
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decGWEIToHexWEI,
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hexWEIToDecGWEI,
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} from '../../helpers/utils/conversions.util';
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import { conversionLessThan } from '../../helpers/utils/conversion-util';
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import { calcTokenAmount } from '../../helpers/utils/token-util';
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import {
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getSelectedAccount,
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getTokenExchangeRates,
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getUSDConversionRate,
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getSwapsDefaultToken,
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getCurrentChainId,
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} from '../../selectors';
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import {
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ERROR_FETCHING_QUOTES,
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QUOTES_NOT_AVAILABLE_ERROR,
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SWAP_FAILED_ERROR,
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SWAPS_FETCH_ORDER_CONFLICT,
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} from '../../../../shared/constants/swaps';
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import { TRANSACTION_TYPES } from '../../../../shared/constants/transaction';
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const GAS_PRICES_LOADING_STATES = {
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INITIAL: 'INITIAL',
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LOADING: 'LOADING',
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FAILED: 'FAILED',
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COMPLETED: 'COMPLETED',
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};
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export const FALLBACK_GAS_MULTIPLIER = 1.5;
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const initialState = {
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aggregatorMetadata: null,
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approveTxId: null,
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balanceError: false,
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fetchingQuotes: false,
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fromToken: null,
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quotesFetchStartTime: null,
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topAssets: {},
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toToken: null,
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customGas: {
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price: null,
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limit: null,
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loading: GAS_PRICES_LOADING_STATES.INITIAL,
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priceEstimates: {},
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fallBackPrice: null,
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},
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};
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const slice = createSlice({
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name: 'swaps',
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initialState,
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reducers: {
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clearSwapsState: () => initialState,
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navigatedBackToBuildQuote: (state) => {
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state.approveTxId = null;
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state.balanceError = false;
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state.fetchingQuotes = false;
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state.customGas.limit = null;
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state.customGas.price = null;
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},
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retriedGetQuotes: (state) => {
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state.approveTxId = null;
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state.balanceError = false;
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state.fetchingQuotes = false;
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},
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setAggregatorMetadata: (state, action) => {
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state.aggregatorMetadata = action.payload;
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},
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setBalanceError: (state, action) => {
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state.balanceError = action.payload;
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},
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setFetchingQuotes: (state, action) => {
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state.fetchingQuotes = action.payload;
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},
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setFromToken: (state, action) => {
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state.fromToken = action.payload;
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},
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setQuotesFetchStartTime: (state, action) => {
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state.quotesFetchStartTime = action.payload;
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},
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setTopAssets: (state, action) => {
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state.topAssets = action.payload;
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},
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setToToken: (state, action) => {
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state.toToken = action.payload;
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},
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swapCustomGasModalClosed: (state) => {
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state.customGas.price = null;
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state.customGas.limit = null;
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},
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swapCustomGasModalPriceEdited: (state, action) => {
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state.customGas.price = action.payload;
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},
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swapCustomGasModalLimitEdited: (state, action) => {
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state.customGas.limit = action.payload;
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},
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swapGasPriceEstimatesFetchStarted: (state) => {
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state.customGas.loading = GAS_PRICES_LOADING_STATES.LOADING;
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},
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swapGasPriceEstimatesFetchFailed: (state) => {
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state.customGas.loading = GAS_PRICES_LOADING_STATES.FAILED;
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},
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swapGasPriceEstimatesFetchCompleted: (state, action) => {
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state.customGas.priceEstimates = action.payload.priceEstimates;
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state.customGas.loading = GAS_PRICES_LOADING_STATES.COMPLETED;
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},
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retrievedFallbackSwapsGasPrice: (state, action) => {
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state.customGas.fallBackPrice = action.payload;
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},
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},
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});
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const { actions, reducer } = slice;
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export default reducer;
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// Selectors
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export const getAggregatorMetadata = (state) => state.swaps.aggregatorMetadata;
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export const getBalanceError = (state) => state.swaps.balanceError;
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export const getFromToken = (state) => state.swaps.fromToken;
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export const getTopAssets = (state) => state.swaps.topAssets;
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export const getToToken = (state) => state.swaps.toToken;
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export const getFetchingQuotes = (state) => state.swaps.fetchingQuotes;
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export const getQuotesFetchStartTime = (state) =>
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state.swaps.quotesFetchStartTime;
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export const getSwapsCustomizationModalPrice = (state) =>
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state.swaps.customGas.price;
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export const getSwapsCustomizationModalLimit = (state) =>
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state.swaps.customGas.limit;
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export const swapGasPriceEstimateIsLoading = (state) =>
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state.swaps.customGas.loading === GAS_PRICES_LOADING_STATES.LOADING;
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export const swapGasEstimateLoadingHasFailed = (state) =>
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state.swaps.customGas.loading === GAS_PRICES_LOADING_STATES.INITIAL;
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export const getSwapGasPriceEstimateData = (state) =>
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state.swaps.customGas.priceEstimates;
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export const getSwapsFallbackGasPrice = (state) =>
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state.swaps.customGas.fallBackPrice;
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export function shouldShowCustomPriceTooLowWarning(state) {
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const { average } = getSwapGasPriceEstimateData(state);
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const customGasPrice = getSwapsCustomizationModalPrice(state);
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if (!customGasPrice || average === undefined) {
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return false;
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}
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const customPriceRisksSwapFailure = conversionLessThan(
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{
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value: customGasPrice,
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fromNumericBase: 'hex',
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fromDenomination: 'WEI',
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toDenomination: 'GWEI',
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},
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{ value: average, fromNumericBase: 'dec' },
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);
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return customPriceRisksSwapFailure;
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}
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// Background selectors
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const getSwapsState = (state) => state.metamask.swapsState;
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export const getSwapsFeatureLiveness = (state) =>
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state.metamask.swapsState.swapsFeatureIsLive;
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export const getSwapsQuoteRefreshTime = (state) =>
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state.metamask.swapsState.swapsQuoteRefreshTime;
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export const getBackgroundSwapRouteState = (state) =>
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state.metamask.swapsState.routeState;
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export const getCustomSwapsGas = (state) =>
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state.metamask.swapsState.customMaxGas;
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export const getCustomSwapsGasPrice = (state) =>
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state.metamask.swapsState.customGasPrice;
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export const getFetchParams = (state) => state.metamask.swapsState.fetchParams;
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export const getQuotes = (state) => state.metamask.swapsState.quotes;
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export const getQuotesLastFetched = (state) =>
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state.metamask.swapsState.quotesLastFetched;
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export const getSelectedQuote = (state) => {
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const { selectedAggId, quotes } = getSwapsState(state);
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return quotes[selectedAggId];
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};
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export const getSwapsErrorKey = (state) => getSwapsState(state)?.errorKey;
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export const getShowQuoteLoadingScreen = (state) =>
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state.swaps.showQuoteLoadingScreen;
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export const getSwapsTokens = (state) => state.metamask.swapsState.tokens;
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export const getSwapsWelcomeMessageSeenStatus = (state) =>
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state.metamask.swapsWelcomeMessageHasBeenShown;
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export const getTopQuote = (state) => {
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const { topAggId, quotes } = getSwapsState(state);
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return quotes[topAggId];
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};
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export const getApproveTxId = (state) => state.metamask.swapsState.approveTxId;
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export const getTradeTxId = (state) => state.metamask.swapsState.tradeTxId;
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export const getUsedQuote = (state) =>
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getSelectedQuote(state) || getTopQuote(state);
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// Compound selectors
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export const getDestinationTokenInfo = (state) =>
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getFetchParams(state)?.metaData?.destinationTokenInfo;
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export const getUsedSwapsGasPrice = (state) =>
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getCustomSwapsGasPrice(state) || getSwapsFallbackGasPrice(state);
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export const getApproveTxParams = (state) => {
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const { approvalNeeded } =
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getSelectedQuote(state) || getTopQuote(state) || {};
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if (!approvalNeeded) {
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return null;
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}
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const data = getSwapsState(state)?.customApproveTxData || approvalNeeded.data;
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const gasPrice = getUsedSwapsGasPrice(state);
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return { ...approvalNeeded, gasPrice, data };
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};
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// Actions / action-creators
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const {
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clearSwapsState,
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navigatedBackToBuildQuote,
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retriedGetQuotes,
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swapGasPriceEstimatesFetchCompleted,
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swapGasPriceEstimatesFetchStarted,
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swapGasPriceEstimatesFetchFailed,
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setAggregatorMetadata,
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setBalanceError,
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setFetchingQuotes,
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setFromToken,
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setQuotesFetchStartTime,
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setTopAssets,
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setToToken,
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swapCustomGasModalPriceEdited,
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swapCustomGasModalLimitEdited,
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retrievedFallbackSwapsGasPrice,
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swapCustomGasModalClosed,
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} = actions;
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export {
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clearSwapsState,
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setAggregatorMetadata,
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setBalanceError,
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setFetchingQuotes,
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setFromToken as setSwapsFromToken,
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setQuotesFetchStartTime as setSwapQuotesFetchStartTime,
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setTopAssets,
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setToToken as setSwapToToken,
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swapCustomGasModalPriceEdited,
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swapCustomGasModalLimitEdited,
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swapCustomGasModalClosed,
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};
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export const navigateBackToBuildQuote = (history) => {
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return async (dispatch) => {
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// TODO: Ensure any fetch in progress is cancelled
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await dispatch(setBackgroundSwapRouteState(''));
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dispatch(navigatedBackToBuildQuote());
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history.push(BUILD_QUOTE_ROUTE);
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};
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};
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export const prepareForRetryGetQuotes = () => {
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return async (dispatch) => {
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// TODO: Ensure any fetch in progress is cancelled
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await dispatch(resetSwapsPostFetchState());
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dispatch(retriedGetQuotes());
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};
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};
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export const prepareToLeaveSwaps = () => {
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return async (dispatch) => {
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dispatch(clearSwapsState());
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await dispatch(resetBackgroundSwapsState());
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};
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};
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export const swapsQuoteSelected = (aggId) => {
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return (dispatch) => {
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dispatch(swapCustomGasModalLimitEdited(null));
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dispatch(setSelectedQuoteAggId(aggId));
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dispatch(setSwapsTxGasLimit(''));
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};
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};
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export const fetchAndSetSwapsGasPriceInfo = () => {
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return async (dispatch) => {
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const basicEstimates = await dispatch(fetchMetaSwapsGasPriceEstimates());
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if (basicEstimates?.fast) {
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dispatch(setSwapsTxGasPrice(decGWEIToHexWEI(basicEstimates.fast)));
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}
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};
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};
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export const fetchSwapsLiveness = () => {
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return async (dispatch, getState) => {
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let swapsFeatureIsLive = false;
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try {
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swapsFeatureIsLive = await fetchSwapsFeatureLiveness(
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getCurrentChainId(getState()),
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);
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} catch (error) {
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log.error('Failed to fetch Swaps liveness, defaulting to false.', error);
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}
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await dispatch(setSwapsLiveness(swapsFeatureIsLive));
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return swapsFeatureIsLive;
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};
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};
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export const fetchQuotesAndSetQuoteState = (
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history,
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inputValue,
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maxSlippage,
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metaMetricsEvent,
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) => {
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return async (dispatch, getState) => {
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const state = getState();
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const chainId = getCurrentChainId(state);
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let swapsFeatureIsLive = false;
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try {
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swapsFeatureIsLive = await fetchSwapsFeatureLiveness(chainId);
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} catch (error) {
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log.error('Failed to fetch Swaps liveness, defaulting to false.', error);
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}
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await dispatch(setSwapsLiveness(swapsFeatureIsLive));
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if (!swapsFeatureIsLive) {
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await history.push(SWAPS_MAINTENANCE_ROUTE);
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return;
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}
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const fetchParams = getFetchParams(state);
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const selectedAccount = getSelectedAccount(state);
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const balanceError = getBalanceError(state);
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const swapsDefaultToken = getSwapsDefaultToken(state);
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const fetchParamsFromToken =
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fetchParams?.metaData?.sourceTokenInfo?.symbol ===
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swapsDefaultToken.symbol
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? swapsDefaultToken
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: fetchParams?.metaData?.sourceTokenInfo;
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const selectedFromToken = getFromToken(state) || fetchParamsFromToken || {};
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const selectedToToken =
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getToToken(state) || fetchParams?.metaData?.destinationTokenInfo || {};
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const {
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address: fromTokenAddress,
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symbol: fromTokenSymbol,
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decimals: fromTokenDecimals,
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iconUrl: fromTokenIconUrl,
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balance: fromTokenBalance,
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} = selectedFromToken;
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const {
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address: toTokenAddress,
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symbol: toTokenSymbol,
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decimals: toTokenDecimals,
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iconUrl: toTokenIconUrl,
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} = selectedToToken;
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await dispatch(setBackgroundSwapRouteState('loading'));
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history.push(LOADING_QUOTES_ROUTE);
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dispatch(setFetchingQuotes(true));
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const contractExchangeRates = getTokenExchangeRates(state);
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let destinationTokenAddedForSwap = false;
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if (
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toTokenAddress &&
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toTokenSymbol !== swapsDefaultToken.symbol &&
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!contractExchangeRates[toTokenAddress]
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) {
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destinationTokenAddedForSwap = true;
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await dispatch(
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addToken(
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toTokenAddress,
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toTokenSymbol,
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toTokenDecimals,
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toTokenIconUrl,
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true,
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),
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);
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}
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if (
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fromTokenAddress &&
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fromTokenSymbol !== swapsDefaultToken.symbol &&
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!contractExchangeRates[fromTokenAddress] &&
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fromTokenBalance &&
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new BigNumber(fromTokenBalance, 16).gt(0)
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) {
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dispatch(
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addToken(
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fromTokenAddress,
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fromTokenSymbol,
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fromTokenDecimals,
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fromTokenIconUrl,
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true,
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),
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);
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}
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const swapsTokens = getSwapsTokens(state);
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const sourceTokenInfo =
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swapsTokens?.find(({ address }) => address === fromTokenAddress) ||
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selectedFromToken;
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const destinationTokenInfo =
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swapsTokens?.find(({ address }) => address === toTokenAddress) ||
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selectedToToken;
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dispatch(setFromToken(selectedFromToken));
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metaMetricsEvent({
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event: 'Quotes Requested',
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category: 'swaps',
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sensitiveProperties: {
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token_from: fromTokenSymbol,
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token_from_amount: String(inputValue),
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token_to: toTokenSymbol,
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request_type: balanceError ? 'Quote' : 'Order',
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slippage: maxSlippage,
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custom_slippage: maxSlippage !== 2,
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anonymizedData: true,
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},
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});
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try {
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const fetchStartTime = Date.now();
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dispatch(setQuotesFetchStartTime(fetchStartTime));
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const fetchAndSetQuotesPromise = dispatch(
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fetchAndSetQuotes(
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{
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slippage: maxSlippage,
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sourceToken: fromTokenAddress,
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destinationToken: toTokenAddress,
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value: inputValue,
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fromAddress: selectedAccount.address,
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destinationTokenAddedForSwap,
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balanceError,
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sourceDecimals: fromTokenDecimals,
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},
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{
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sourceTokenInfo,
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destinationTokenInfo,
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accountBalance: selectedAccount.balance,
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chainId,
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},
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),
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);
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const gasPriceFetchPromise = dispatch(fetchAndSetSwapsGasPriceInfo());
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const [[fetchedQuotes, selectedAggId]] = await Promise.all([
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fetchAndSetQuotesPromise,
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gasPriceFetchPromise,
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]);
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if (Object.values(fetchedQuotes)?.length === 0) {
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metaMetricsEvent({
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event: 'No Quotes Available',
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category: 'swaps',
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sensitiveProperties: {
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token_from: fromTokenSymbol,
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token_from_amount: String(inputValue),
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token_to: toTokenSymbol,
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request_type: balanceError ? 'Quote' : 'Order',
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slippage: maxSlippage,
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custom_slippage: maxSlippage !== 2,
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},
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});
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dispatch(setSwapsErrorKey(QUOTES_NOT_AVAILABLE_ERROR));
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} else {
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|
const newSelectedQuote = fetchedQuotes[selectedAggId];
|
|
|
|
metaMetricsEvent({
|
|
event: 'Quotes Received',
|
|
category: 'swaps',
|
|
sensitiveProperties: {
|
|
token_from: fromTokenSymbol,
|
|
token_from_amount: String(inputValue),
|
|
token_to: toTokenSymbol,
|
|
token_to_amount: calcTokenAmount(
|
|
newSelectedQuote.destinationAmount,
|
|
newSelectedQuote.decimals || 18,
|
|
),
|
|
request_type: balanceError ? 'Quote' : 'Order',
|
|
slippage: maxSlippage,
|
|
custom_slippage: maxSlippage !== 2,
|
|
response_time: Date.now() - fetchStartTime,
|
|
best_quote_source: newSelectedQuote.aggregator,
|
|
available_quotes: Object.values(fetchedQuotes)?.length,
|
|
anonymizedData: true,
|
|
},
|
|
});
|
|
|
|
dispatch(setInitialGasEstimate(selectedAggId));
|
|
}
|
|
} catch (e) {
|
|
// A newer swap request is running, so simply bail and let the newer request respond
|
|
if (e.message === SWAPS_FETCH_ORDER_CONFLICT) {
|
|
log.debug(`Swap fetch order conflict detected; ignoring older request`);
|
|
return;
|
|
}
|
|
// TODO: Check for any errors we should expect to occur in production, and report others to Sentry
|
|
log.error(`Error fetching quotes: `, e);
|
|
|
|
dispatch(setSwapsErrorKey(ERROR_FETCHING_QUOTES));
|
|
}
|
|
|
|
dispatch(setFetchingQuotes(false));
|
|
};
|
|
};
|
|
|
|
export const signAndSendTransactions = (history, metaMetricsEvent) => {
|
|
return async (dispatch, getState) => {
|
|
const state = getState();
|
|
const chainId = getCurrentChainId(state);
|
|
|
|
let swapsFeatureIsLive = false;
|
|
try {
|
|
swapsFeatureIsLive = await fetchSwapsFeatureLiveness(chainId);
|
|
} catch (error) {
|
|
log.error('Failed to fetch Swaps liveness, defaulting to false.', error);
|
|
}
|
|
await dispatch(setSwapsLiveness(swapsFeatureIsLive));
|
|
|
|
if (!swapsFeatureIsLive) {
|
|
await history.push(SWAPS_MAINTENANCE_ROUTE);
|
|
return;
|
|
}
|
|
|
|
const customSwapsGas = getCustomSwapsGas(state);
|
|
const fetchParams = getFetchParams(state);
|
|
const { metaData, value: swapTokenValue, slippage } = fetchParams;
|
|
const { sourceTokenInfo = {}, destinationTokenInfo = {} } = metaData;
|
|
await dispatch(setBackgroundSwapRouteState('awaiting'));
|
|
await dispatch(stopPollingForQuotes());
|
|
history.push(AWAITING_SWAP_ROUTE);
|
|
|
|
const { fast: fastGasEstimate } = getSwapGasPriceEstimateData(state);
|
|
|
|
const usedQuote = getUsedQuote(state);
|
|
const usedTradeTxParams = usedQuote.trade;
|
|
|
|
const estimatedGasLimit = new BigNumber(
|
|
usedQuote?.gasEstimate || `0x0`,
|
|
16,
|
|
);
|
|
const estimatedGasLimitWithMultiplier = estimatedGasLimit
|
|
.times(usedQuote?.gasMultiplier || FALLBACK_GAS_MULTIPLIER, 10)
|
|
.round(0)
|
|
.toString(16);
|
|
const maxGasLimit =
|
|
customSwapsGas ||
|
|
(usedQuote?.gasEstimate
|
|
? estimatedGasLimitWithMultiplier
|
|
: `0x${decimalToHex(usedQuote?.maxGas || 0)}`);
|
|
|
|
const usedGasPrice = getUsedSwapsGasPrice(state);
|
|
usedTradeTxParams.gas = maxGasLimit;
|
|
usedTradeTxParams.gasPrice = usedGasPrice;
|
|
|
|
const usdConversionRate = getUSDConversionRate(state);
|
|
const destinationValue = calcTokenAmount(
|
|
usedQuote.destinationAmount,
|
|
destinationTokenInfo.decimals || 18,
|
|
).toPrecision(8);
|
|
const usedGasLimitEstimate =
|
|
usedQuote?.gasEstimateWithRefund ||
|
|
`0x${decimalToHex(usedQuote?.averageGas || 0)}`;
|
|
const totalGasLimitEstimate = new BigNumber(usedGasLimitEstimate, 16)
|
|
.plus(usedQuote.approvalNeeded?.gas || '0x0', 16)
|
|
.toString(16);
|
|
const gasEstimateTotalInUSD = getValueFromWeiHex({
|
|
value: calcGasTotal(totalGasLimitEstimate, usedGasPrice),
|
|
toCurrency: 'usd',
|
|
conversionRate: usdConversionRate,
|
|
numberOfDecimals: 6,
|
|
});
|
|
|
|
const swapMetaData = {
|
|
token_from: sourceTokenInfo.symbol,
|
|
token_from_amount: String(swapTokenValue),
|
|
token_to: destinationTokenInfo.symbol,
|
|
token_to_amount: destinationValue,
|
|
slippage,
|
|
custom_slippage: slippage !== 2,
|
|
best_quote_source: getTopQuote(state)?.aggregator,
|
|
available_quotes: getQuotes(state)?.length,
|
|
other_quote_selected:
|
|
usedQuote.aggregator !== getTopQuote(state)?.aggregator,
|
|
other_quote_selected_source:
|
|
usedQuote.aggregator === getTopQuote(state)?.aggregator
|
|
? ''
|
|
: usedQuote.aggregator,
|
|
gas_fees: gasEstimateTotalInUSD,
|
|
estimated_gas: estimatedGasLimit.toString(10),
|
|
suggested_gas_price: fastGasEstimate,
|
|
used_gas_price: hexWEIToDecGWEI(usedGasPrice),
|
|
average_savings: usedQuote.savings?.total,
|
|
performance_savings: usedQuote.savings?.performance,
|
|
fee_savings: usedQuote.savings?.fee,
|
|
median_metamask_fee: usedQuote.savings?.medianMetaMaskFee,
|
|
};
|
|
|
|
metaMetricsEvent({
|
|
event: 'Swap Started',
|
|
category: 'swaps',
|
|
sensitiveProperties: swapMetaData,
|
|
});
|
|
|
|
if (!isContractAddressValid(usedTradeTxParams.to, swapMetaData, chainId)) {
|
|
captureMessage('Invalid contract address', {
|
|
extra: {
|
|
token_from: swapMetaData.token_from,
|
|
token_to: swapMetaData.token_to,
|
|
contract_address: usedTradeTxParams.to,
|
|
},
|
|
});
|
|
await dispatch(setSwapsErrorKey(SWAP_FAILED_ERROR));
|
|
history.push(SWAPS_ERROR_ROUTE);
|
|
return;
|
|
}
|
|
|
|
let finalApproveTxMeta;
|
|
const approveTxParams = getApproveTxParams(state);
|
|
if (approveTxParams) {
|
|
const approveTxMeta = await dispatch(
|
|
addUnapprovedTransaction(
|
|
{ ...approveTxParams, amount: '0x0' },
|
|
'metamask',
|
|
),
|
|
);
|
|
await dispatch(setApproveTxId(approveTxMeta.id));
|
|
finalApproveTxMeta = await dispatch(
|
|
updateTransaction(
|
|
{
|
|
...approveTxMeta,
|
|
type: TRANSACTION_TYPES.SWAP_APPROVAL,
|
|
sourceTokenSymbol: sourceTokenInfo.symbol,
|
|
},
|
|
true,
|
|
),
|
|
);
|
|
try {
|
|
await dispatch(updateAndApproveTx(finalApproveTxMeta, true));
|
|
} catch (e) {
|
|
await dispatch(setSwapsErrorKey(SWAP_FAILED_ERROR));
|
|
history.push(SWAPS_ERROR_ROUTE);
|
|
return;
|
|
}
|
|
}
|
|
|
|
const tradeTxMeta = await dispatch(
|
|
addUnapprovedTransaction(usedTradeTxParams, 'metamask'),
|
|
);
|
|
dispatch(setTradeTxId(tradeTxMeta.id));
|
|
|
|
// The simulationFails property is added during the transaction controllers
|
|
// addUnapprovedTransaction call if the estimateGas call fails. In cases
|
|
// when no approval is required, this indicates that the swap will likely
|
|
// fail. There was an earlier estimateGas call made by the swaps controller,
|
|
// but it is possible that external conditions have change since then, and
|
|
// a previously succeeding estimate gas call could now fail. By checking for
|
|
// the `simulationFails` property here, we can reduce the number of swap
|
|
// transactions that get published to the blockchain only to fail and thereby
|
|
// waste the user's funds on gas.
|
|
if (!approveTxParams && tradeTxMeta.simulationFails) {
|
|
await dispatch(cancelTx(tradeTxMeta, false));
|
|
await dispatch(setSwapsErrorKey(SWAP_FAILED_ERROR));
|
|
history.push(SWAPS_ERROR_ROUTE);
|
|
return;
|
|
}
|
|
const finalTradeTxMeta = await dispatch(
|
|
updateTransaction(
|
|
{
|
|
...tradeTxMeta,
|
|
sourceTokenSymbol: sourceTokenInfo.symbol,
|
|
destinationTokenSymbol: destinationTokenInfo.symbol,
|
|
type: TRANSACTION_TYPES.SWAP,
|
|
destinationTokenDecimals: destinationTokenInfo.decimals,
|
|
destinationTokenAddress: destinationTokenInfo.address,
|
|
swapMetaData,
|
|
swapTokenValue,
|
|
approvalTxId: finalApproveTxMeta?.id,
|
|
},
|
|
true,
|
|
),
|
|
);
|
|
try {
|
|
await dispatch(updateAndApproveTx(finalTradeTxMeta, true));
|
|
} catch (e) {
|
|
await dispatch(setSwapsErrorKey(SWAP_FAILED_ERROR));
|
|
history.push(SWAPS_ERROR_ROUTE);
|
|
return;
|
|
}
|
|
|
|
await forceUpdateMetamaskState(dispatch);
|
|
};
|
|
};
|
|
|
|
export function fetchMetaSwapsGasPriceEstimates() {
|
|
return async (dispatch, getState) => {
|
|
const state = getState();
|
|
const chainId = getCurrentChainId(state);
|
|
|
|
dispatch(swapGasPriceEstimatesFetchStarted());
|
|
|
|
let priceEstimates;
|
|
try {
|
|
priceEstimates = await fetchSwapsGasPrices(chainId);
|
|
} catch (e) {
|
|
log.warn('Fetching swaps gas prices failed:', e);
|
|
|
|
if (!e.message?.match(/NetworkError|Fetch failed with status:/u)) {
|
|
throw e;
|
|
}
|
|
|
|
dispatch(swapGasPriceEstimatesFetchFailed());
|
|
|
|
try {
|
|
const gasPrice = await global.ethQuery.gasPrice();
|
|
const gasPriceInDecGWEI = hexWEIToDecGWEI(gasPrice.toString(10));
|
|
|
|
dispatch(retrievedFallbackSwapsGasPrice(gasPriceInDecGWEI));
|
|
return null;
|
|
} catch (networkGasPriceError) {
|
|
console.error(
|
|
`Failed to retrieve fallback gas price: `,
|
|
networkGasPriceError,
|
|
);
|
|
return null;
|
|
}
|
|
}
|
|
|
|
dispatch(
|
|
swapGasPriceEstimatesFetchCompleted({
|
|
priceEstimates,
|
|
}),
|
|
);
|
|
return priceEstimates;
|
|
};
|
|
}
|
|
|