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-import { schemas } from '@0xproject/json-schemas';
-import { formatters, getOrderHashHex, OrderStateUtils } from '@0xproject/order-utils';
-import {
- BlockParamLiteral,
- ContractAbi,
- DecodedLogArgs,
- ECSignature,
- ExchangeContractErrs,
- LogEntry,
- LogWithDecodedArgs,
- Order,
- OrderState,
- SignedOrder,
-} from '@0xproject/types';
-import { BigNumber } from '@0xproject/utils';
-import { Web3Wrapper } from '@0xproject/web3-wrapper';
-import * as _ from 'lodash';
-
-import { artifacts } from '../artifacts';
-import { SimpleBalanceAndProxyAllowanceFetcher } from '../fetchers/simple_balance_and_proxy_allowance_fetcher';
-import { SimpleOrderFilledCancelledFetcher } from '../fetchers/simple_order_filled_cancelled_fetcher';
-import { BalanceAndProxyAllowanceLazyStore } from '../stores/balance_proxy_allowance_lazy_store';
-import {
- BlockRange,
- EventCallback,
- ExchangeContractErrCodes,
- IndexedFilterValues,
- MethodOpts,
- OrderCancellationRequest,
- OrderFillRequest,
- OrderTransactionOpts,
- ValidateOrderFillableOpts,
-} from '../types';
-import { assert } from '../utils/assert';
-import { decorators } from '../utils/decorators';
-import { ExchangeTransferSimulator } from '../utils/exchange_transfer_simulator';
-import { OrderValidationUtils } from '../utils/order_validation_utils';
-
-import { ContractWrapper } from './contract_wrapper';
-import {
- ExchangeContract,
- ExchangeContractEventArgs,
- ExchangeEvents,
- LogErrorContractEventArgs,
-} from './generated/exchange';
-import { TokenWrapper } from './token_wrapper';
-const SHOULD_VALIDATE_BY_DEFAULT = true;
-
-interface ExchangeContractErrCodesToMsgs {
- [exchangeContractErrCodes: number]: string;
-}
-
-/**
- * This class includes all the functionality related to calling methods and subscribing to
- * events of the 0x Exchange smart contract.
- */
-export class ExchangeWrapper extends ContractWrapper {
- public abi: ContractAbi = artifacts.Exchange.abi;
- private _exchangeContractIfExists?: ExchangeContract;
- private _orderValidationUtilsIfExists?: OrderValidationUtils;
- private _tokenWrapper: TokenWrapper;
- private _exchangeContractErrCodesToMsg: ExchangeContractErrCodesToMsgs = {
- [ExchangeContractErrCodes.ERROR_FILL_EXPIRED]: ExchangeContractErrs.OrderFillExpired,
- [ExchangeContractErrCodes.ERROR_CANCEL_EXPIRED]: ExchangeContractErrs.OrderFillExpired,
- [ExchangeContractErrCodes.ERROR_FILL_NO_VALUE]: ExchangeContractErrs.OrderRemainingFillAmountZero,
- [ExchangeContractErrCodes.ERROR_CANCEL_NO_VALUE]: ExchangeContractErrs.OrderRemainingFillAmountZero,
- [ExchangeContractErrCodes.ERROR_FILL_TRUNCATION]: ExchangeContractErrs.OrderFillRoundingError,
- [ExchangeContractErrCodes.ERROR_FILL_BALANCE_ALLOWANCE]: ExchangeContractErrs.FillBalanceAllowanceError,
- };
- private _contractAddressIfExists?: string;
- private _zrxContractAddressIfExists?: string;
- constructor(
- web3Wrapper: Web3Wrapper,
- networkId: number,
- tokenWrapper: TokenWrapper,
- contractAddressIfExists?: string,
- zrxContractAddressIfExists?: string,
- ) {
- super(web3Wrapper, networkId);
- this._tokenWrapper = tokenWrapper;
- this._contractAddressIfExists = contractAddressIfExists;
- this._zrxContractAddressIfExists = zrxContractAddressIfExists;
- }
- /**
- * Returns the unavailable takerAmount of an order. Unavailable amount is defined as the total
- * amount that has been filled or cancelled. The remaining takerAmount can be calculated by
- * subtracting the unavailable amount from the total order takerAmount.
- * @param orderHash The hex encoded orderHash for which you would like to retrieve the
- * unavailable takerAmount.
- * @param methodOpts Optional arguments this method accepts.
- * @return The amount of the order (in taker tokens) that has either been filled or cancelled.
- */
- public async getUnavailableTakerAmountAsync(orderHash: string, methodOpts?: MethodOpts): Promise<BigNumber> {
- assert.doesConformToSchema('orderHash', orderHash, schemas.orderHashSchema);
-
- const exchangeContract = await this._getExchangeContractAsync();
- const defaultBlock = _.isUndefined(methodOpts) ? undefined : methodOpts.defaultBlock;
- const txData = {};
- let unavailableTakerTokenAmount = await exchangeContract.getUnavailableTakerTokenAmount.callAsync(
- orderHash,
- txData,
- defaultBlock,
- );
- // Wrap BigNumbers returned from web3 with our own (later) version of BigNumber
- unavailableTakerTokenAmount = new BigNumber(unavailableTakerTokenAmount);
- return unavailableTakerTokenAmount;
- }
- /**
- * Retrieve the takerAmount of an order that has already been filled.
- * @param orderHash The hex encoded orderHash for which you would like to retrieve the filled takerAmount.
- * @param methodOpts Optional arguments this method accepts.
- * @return The amount of the order (in taker tokens) that has already been filled.
- */
- public async getFilledTakerAmountAsync(orderHash: string, methodOpts?: MethodOpts): Promise<BigNumber> {
- assert.doesConformToSchema('orderHash', orderHash, schemas.orderHashSchema);
-
- const exchangeContract = await this._getExchangeContractAsync();
- const defaultBlock = _.isUndefined(methodOpts) ? undefined : methodOpts.defaultBlock;
- const txData = {};
- let fillAmountInBaseUnits = await exchangeContract.filled.callAsync(orderHash, txData, defaultBlock);
- // Wrap BigNumbers returned from web3 with our own (later) version of BigNumber
- fillAmountInBaseUnits = new BigNumber(fillAmountInBaseUnits);
- return fillAmountInBaseUnits;
- }
- /**
- * Retrieve the takerAmount of an order that has been cancelled.
- * @param orderHash The hex encoded orderHash for which you would like to retrieve the
- * cancelled takerAmount.
- * @param methodOpts Optional arguments this method accepts.
- * @return The amount of the order (in taker tokens) that has been cancelled.
- */
- public async getCancelledTakerAmountAsync(orderHash: string, methodOpts?: MethodOpts): Promise<BigNumber> {
- assert.doesConformToSchema('orderHash', orderHash, schemas.orderHashSchema);
-
- const exchangeContract = await this._getExchangeContractAsync();
- const defaultBlock = _.isUndefined(methodOpts) ? undefined : methodOpts.defaultBlock;
- const txData = {};
- let cancelledAmountInBaseUnits = await exchangeContract.cancelled.callAsync(orderHash, txData, defaultBlock);
- // Wrap BigNumbers returned from web3 with our own (later) version of BigNumber
- cancelledAmountInBaseUnits = new BigNumber(cancelledAmountInBaseUnits);
- return cancelledAmountInBaseUnits;
- }
- /**
- * Fills a signed order with an amount denominated in baseUnits of the taker token.
- * Since the order in which transactions are included in the next block is indeterminate, race-conditions
- * could arise where a users balance or allowance changes before the fillOrder executes. Because of this,
- * we allow you to specify `shouldThrowOnInsufficientBalanceOrAllowance`.
- * If false, the smart contract will not throw if the parties
- * do not have sufficient balances/allowances, preserving gas costs. Setting it to true forgoes this check
- * and causes the smart contract to throw (using all the gas supplied) instead.
- * @param signedOrder An object that conforms to the SignedOrder interface.
- * @param fillTakerTokenAmount The amount of the order (in taker tokens baseUnits) that
- * you wish to fill.
- * @param shouldThrowOnInsufficientBalanceOrAllowance Whether or not you wish for the contract call to throw
- * if upon execution the tokens cannot be transferred.
- * @param takerAddress The user Ethereum address who would like to fill this order.
- * Must be available via the supplied Provider
- * passed to 0x.js.
- * @param orderTransactionOpts Optional arguments this method accepts.
- * @return Transaction hash.
- */
- @decorators.asyncZeroExErrorHandler
- public async fillOrderAsync(
- signedOrder: SignedOrder,
- fillTakerTokenAmount: BigNumber,
- shouldThrowOnInsufficientBalanceOrAllowance: boolean,
- takerAddress: string,
- orderTransactionOpts: OrderTransactionOpts = {},
- ): Promise<string> {
- assert.doesConformToSchema('signedOrder', signedOrder, schemas.signedOrderSchema);
- assert.isValidBaseUnitAmount('fillTakerTokenAmount', fillTakerTokenAmount);
- assert.isBoolean('shouldThrowOnInsufficientBalanceOrAllowance', shouldThrowOnInsufficientBalanceOrAllowance);
- await assert.isSenderAddressAsync('takerAddress', takerAddress, this._web3Wrapper);
- const normalizedTakerAddress = takerAddress.toLowerCase();
-
- const exchangeInstance = await this._getExchangeContractAsync();
- const shouldValidate = _.isUndefined(orderTransactionOpts.shouldValidate)
- ? SHOULD_VALIDATE_BY_DEFAULT
- : orderTransactionOpts.shouldValidate;
- if (shouldValidate) {
- const zrxTokenAddress = this.getZRXTokenAddress();
- const balanceAndProxyAllowanceLazyStore = new BalanceAndProxyAllowanceLazyStore(
- this._tokenWrapper,
- BlockParamLiteral.Latest,
- );
- const exchangeTradeEmulator = new ExchangeTransferSimulator(balanceAndProxyAllowanceLazyStore);
- const orderValidationUtils = await this._getOrderValidationUtilsAsync();
- await orderValidationUtils.validateFillOrderThrowIfInvalidAsync(
- exchangeTradeEmulator,
- signedOrder,
- fillTakerTokenAmount,
- normalizedTakerAddress,
- zrxTokenAddress,
- );
- }
-
- const [orderAddresses, orderValues] = formatters.getOrderAddressesAndValues(signedOrder);
-
- const txHash: string = await exchangeInstance.fillOrder.sendTransactionAsync(
- orderAddresses,
- orderValues,
- fillTakerTokenAmount,
- shouldThrowOnInsufficientBalanceOrAllowance,
- signedOrder.ecSignature.v,
- signedOrder.ecSignature.r,
- signedOrder.ecSignature.s,
- {
- from: normalizedTakerAddress,
- gas: orderTransactionOpts.gasLimit,
- gasPrice: orderTransactionOpts.gasPrice,
- },
- );
- return txHash;
- }
- /**
- * Sequentially and atomically fills signedOrders up to the specified takerTokenFillAmount.
- * If the fill amount is reached - it succeeds and does not fill the rest of the orders.
- * If fill amount is not reached - it fills as much of the fill amount as possible and succeeds.
- * @param signedOrders The array of signedOrders that you would like to fill until
- * takerTokenFillAmount is reached.
- * @param fillTakerTokenAmount The total amount of the takerTokens you would like to fill.
- * @param shouldThrowOnInsufficientBalanceOrAllowance Whether or not you wish for the contract call to throw if
- * upon execution any of the tokens cannot be transferred.
- * If set to false, the call will continue to fill subsequent
- * signedOrders even when some cannot be filled.
- * @param takerAddress The user Ethereum address who would like to fill these
- * orders. Must be available via the supplied Provider
- * passed to 0x.js.
- * @param orderTransactionOpts Optional arguments this method accepts.
- * @return Transaction hash.
- */
- @decorators.asyncZeroExErrorHandler
- public async fillOrdersUpToAsync(
- signedOrders: SignedOrder[],
- fillTakerTokenAmount: BigNumber,
- shouldThrowOnInsufficientBalanceOrAllowance: boolean,
- takerAddress: string,
- orderTransactionOpts: OrderTransactionOpts = {},
- ): Promise<string> {
- assert.doesConformToSchema('signedOrders', signedOrders, schemas.signedOrdersSchema);
- const takerTokenAddresses = _.map(signedOrders, signedOrder => signedOrder.takerTokenAddress);
- assert.hasAtMostOneUniqueValue(
- takerTokenAddresses,
- ExchangeContractErrs.MultipleTakerTokensInFillUpToDisallowed,
- );
- const exchangeContractAddresses = _.map(signedOrders, signedOrder => signedOrder.exchangeContractAddress);
- assert.hasAtMostOneUniqueValue(
- exchangeContractAddresses,
- ExchangeContractErrs.BatchOrdersMustHaveSameExchangeAddress,
- );
- assert.isValidBaseUnitAmount('fillTakerTokenAmount', fillTakerTokenAmount);
- assert.isBoolean('shouldThrowOnInsufficientBalanceOrAllowance', shouldThrowOnInsufficientBalanceOrAllowance);
- await assert.isSenderAddressAsync('takerAddress', takerAddress, this._web3Wrapper);
- const normalizedTakerAddress = takerAddress.toLowerCase();
-
- const shouldValidate = _.isUndefined(orderTransactionOpts.shouldValidate)
- ? SHOULD_VALIDATE_BY_DEFAULT
- : orderTransactionOpts.shouldValidate;
- if (shouldValidate) {
- let filledTakerTokenAmount = new BigNumber(0);
- const zrxTokenAddress = this.getZRXTokenAddress();
- const balanceAndProxyAllowanceLazyStore = new BalanceAndProxyAllowanceLazyStore(
- this._tokenWrapper,
- BlockParamLiteral.Latest,
- );
- const exchangeTradeEmulator = new ExchangeTransferSimulator(balanceAndProxyAllowanceLazyStore);
- const orderValidationUtils = await this._getOrderValidationUtilsAsync();
- for (const signedOrder of signedOrders) {
- const singleFilledTakerTokenAmount = await orderValidationUtils.validateFillOrderThrowIfInvalidAsync(
- exchangeTradeEmulator,
- signedOrder,
- fillTakerTokenAmount.minus(filledTakerTokenAmount),
- normalizedTakerAddress,
- zrxTokenAddress,
- );
- filledTakerTokenAmount = filledTakerTokenAmount.plus(singleFilledTakerTokenAmount);
- if (filledTakerTokenAmount.eq(fillTakerTokenAmount)) {
- break;
- }
- }
- }
-
- if (_.isEmpty(signedOrders)) {
- throw new Error(ExchangeContractErrs.BatchOrdersMustHaveAtLeastOneItem);
- }
-
- const orderAddressesValuesAndSignatureArray = _.map(signedOrders, signedOrder => {
- return [
- ...formatters.getOrderAddressesAndValues(signedOrder),
- signedOrder.ecSignature.v,
- signedOrder.ecSignature.r,
- signedOrder.ecSignature.s,
- ];
- });
- // We use _.unzip<any> because _.unzip doesn't type check if values have different types :'(
- const [orderAddressesArray, orderValuesArray, vArray, rArray, sArray] = _.unzip<any>(
- orderAddressesValuesAndSignatureArray,
- );
-
- const exchangeInstance = await this._getExchangeContractAsync();
- const txHash = await exchangeInstance.fillOrdersUpTo.sendTransactionAsync(
- orderAddressesArray,
- orderValuesArray,
- fillTakerTokenAmount,
- shouldThrowOnInsufficientBalanceOrAllowance,
- vArray,
- rArray,
- sArray,
- {
- from: normalizedTakerAddress,
- gas: orderTransactionOpts.gasLimit,
- gasPrice: orderTransactionOpts.gasPrice,
- },
- );
- return txHash;
- }
- /**
- * Batch version of fillOrderAsync.
- * Executes multiple fills atomically in a single transaction.
- * If shouldThrowOnInsufficientBalanceOrAllowance is set to false, it will continue filling subsequent orders even
- * when earlier ones fail.
- * When shouldThrowOnInsufficientBalanceOrAllowance is set to true, if any fill fails, the entire batch fails.
- * @param orderFillRequests An array of objects that conform to the
- * OrderFillRequest interface.
- * @param shouldThrowOnInsufficientBalanceOrAllowance Whether or not you wish for the contract call to throw
- * if upon execution any of the tokens cannot be
- * transferred. If set to false, the call will continue to
- * fill subsequent signedOrders even when some
- * cannot be filled.
- * @param takerAddress The user Ethereum address who would like to fill
- * these orders. Must be available via the supplied
- * Provider passed to 0x.js.
- * @param orderTransactionOpts Optional arguments this method accepts.
- * @return Transaction hash.
- */
- @decorators.asyncZeroExErrorHandler
- public async batchFillOrdersAsync(
- orderFillRequests: OrderFillRequest[],
- shouldThrowOnInsufficientBalanceOrAllowance: boolean,
- takerAddress: string,
- orderTransactionOpts: OrderTransactionOpts = {},
- ): Promise<string> {
- assert.doesConformToSchema('orderFillRequests', orderFillRequests, schemas.orderFillRequestsSchema);
- const exchangeContractAddresses = _.map(
- orderFillRequests,
- orderFillRequest => orderFillRequest.signedOrder.exchangeContractAddress,
- );
- assert.hasAtMostOneUniqueValue(
- exchangeContractAddresses,
- ExchangeContractErrs.BatchOrdersMustHaveSameExchangeAddress,
- );
- assert.isBoolean('shouldThrowOnInsufficientBalanceOrAllowance', shouldThrowOnInsufficientBalanceOrAllowance);
- await assert.isSenderAddressAsync('takerAddress', takerAddress, this._web3Wrapper);
- const normalizedTakerAddress = takerAddress.toLowerCase();
- const shouldValidate = _.isUndefined(orderTransactionOpts.shouldValidate)
- ? SHOULD_VALIDATE_BY_DEFAULT
- : orderTransactionOpts.shouldValidate;
- if (shouldValidate) {
- const zrxTokenAddress = this.getZRXTokenAddress();
- const balanceAndProxyAllowanceLazyStore = new BalanceAndProxyAllowanceLazyStore(
- this._tokenWrapper,
- BlockParamLiteral.Latest,
- );
- const exchangeTradeEmulator = new ExchangeTransferSimulator(balanceAndProxyAllowanceLazyStore);
- const orderValidationUtils = await this._getOrderValidationUtilsAsync();
- for (const orderFillRequest of orderFillRequests) {
- await orderValidationUtils.validateFillOrderThrowIfInvalidAsync(
- exchangeTradeEmulator,
- orderFillRequest.signedOrder,
- orderFillRequest.takerTokenFillAmount,
- normalizedTakerAddress,
- zrxTokenAddress,
- );
- }
- }
- if (_.isEmpty(orderFillRequests)) {
- throw new Error(ExchangeContractErrs.BatchOrdersMustHaveAtLeastOneItem);
- }
-
- const orderAddressesValuesAmountsAndSignatureArray = _.map(orderFillRequests, orderFillRequest => {
- return [
- ...formatters.getOrderAddressesAndValues(orderFillRequest.signedOrder),
- orderFillRequest.takerTokenFillAmount,
- orderFillRequest.signedOrder.ecSignature.v,
- orderFillRequest.signedOrder.ecSignature.r,
- orderFillRequest.signedOrder.ecSignature.s,
- ];
- });
- // We use _.unzip<any> because _.unzip doesn't type check if values have different types :'(
- const [orderAddressesArray, orderValuesArray, fillTakerTokenAmounts, vArray, rArray, sArray] = _.unzip<any>(
- orderAddressesValuesAmountsAndSignatureArray,
- );
-
- const exchangeInstance = await this._getExchangeContractAsync();
- const txHash = await exchangeInstance.batchFillOrders.sendTransactionAsync(
- orderAddressesArray,
- orderValuesArray,
- fillTakerTokenAmounts,
- shouldThrowOnInsufficientBalanceOrAllowance,
- vArray,
- rArray,
- sArray,
- {
- from: normalizedTakerAddress,
- gas: orderTransactionOpts.gasLimit,
- gasPrice: orderTransactionOpts.gasPrice,
- },
- );
- return txHash;
- }
- /**
- * Attempts to fill a specific amount of an order. If the entire amount specified cannot be filled,
- * the fill order is abandoned.
- * @param signedOrder An object that conforms to the SignedOrder interface. The
- * signedOrder you wish to fill.
- * @param fillTakerTokenAmount The total amount of the takerTokens you would like to fill.
- * @param takerAddress The user Ethereum address who would like to fill this order.
- * Must be available via the supplied Provider passed to 0x.js.
- * @param orderTransactionOpts Optional arguments this method accepts.
- * @return Transaction hash.
- */
- @decorators.asyncZeroExErrorHandler
- public async fillOrKillOrderAsync(
- signedOrder: SignedOrder,
- fillTakerTokenAmount: BigNumber,
- takerAddress: string,
- orderTransactionOpts: OrderTransactionOpts = {},
- ): Promise<string> {
- assert.doesConformToSchema('signedOrder', signedOrder, schemas.signedOrderSchema);
- assert.isValidBaseUnitAmount('fillTakerTokenAmount', fillTakerTokenAmount);
- await assert.isSenderAddressAsync('takerAddress', takerAddress, this._web3Wrapper);
- const normalizedTakerAddress = takerAddress.toLowerCase();
-
- const exchangeInstance = await this._getExchangeContractAsync();
-
- const shouldValidate = _.isUndefined(orderTransactionOpts.shouldValidate)
- ? SHOULD_VALIDATE_BY_DEFAULT
- : orderTransactionOpts.shouldValidate;
- if (shouldValidate) {
- const zrxTokenAddress = this.getZRXTokenAddress();
- const balanceAndProxyAllowanceLazyStore = new BalanceAndProxyAllowanceLazyStore(
- this._tokenWrapper,
- BlockParamLiteral.Latest,
- );
- const exchangeTradeEmulator = new ExchangeTransferSimulator(balanceAndProxyAllowanceLazyStore);
- const orderValidationUtils = await this._getOrderValidationUtilsAsync();
- await orderValidationUtils.validateFillOrKillOrderThrowIfInvalidAsync(
- exchangeTradeEmulator,
- signedOrder,
- fillTakerTokenAmount,
- normalizedTakerAddress,
- zrxTokenAddress,
- );
- }
-
- const [orderAddresses, orderValues] = formatters.getOrderAddressesAndValues(signedOrder);
- const txHash = await exchangeInstance.fillOrKillOrder.sendTransactionAsync(
- orderAddresses,
- orderValues,
- fillTakerTokenAmount,
- signedOrder.ecSignature.v,
- signedOrder.ecSignature.r,
- signedOrder.ecSignature.s,
- {
- from: normalizedTakerAddress,
- gas: orderTransactionOpts.gasLimit,
- gasPrice: orderTransactionOpts.gasPrice,
- },
- );
- return txHash;
- }
- /**
- * Batch version of fillOrKill. Allows a taker to specify a batch of orders that will either be atomically
- * filled (each to the specified fillAmount) or aborted.
- * @param orderFillRequests An array of objects that conform to the OrderFillRequest interface.
- * @param takerAddress The user Ethereum address who would like to fill there orders.
- * Must be available via the supplied Provider passed to 0x.js.
- * @param orderTransactionOpts Optional arguments this method accepts.
- * @return Transaction hash.
- */
- @decorators.asyncZeroExErrorHandler
- public async batchFillOrKillAsync(
- orderFillRequests: OrderFillRequest[],
- takerAddress: string,
- orderTransactionOpts: OrderTransactionOpts = {},
- ): Promise<string> {
- assert.doesConformToSchema('orderFillRequests', orderFillRequests, schemas.orderFillRequestsSchema);
- const exchangeContractAddresses = _.map(
- orderFillRequests,
- orderFillRequest => orderFillRequest.signedOrder.exchangeContractAddress,
- );
- assert.hasAtMostOneUniqueValue(
- exchangeContractAddresses,
- ExchangeContractErrs.BatchOrdersMustHaveSameExchangeAddress,
- );
- await assert.isSenderAddressAsync('takerAddress', takerAddress, this._web3Wrapper);
- const normalizedTakerAddress = takerAddress.toLowerCase();
- if (_.isEmpty(orderFillRequests)) {
- throw new Error(ExchangeContractErrs.BatchOrdersMustHaveAtLeastOneItem);
- }
- const exchangeInstance = await this._getExchangeContractAsync();
-
- const shouldValidate = _.isUndefined(orderTransactionOpts.shouldValidate)
- ? SHOULD_VALIDATE_BY_DEFAULT
- : orderTransactionOpts.shouldValidate;
- if (shouldValidate) {
- const zrxTokenAddress = this.getZRXTokenAddress();
- const balanceAndProxyAllowanceLazyStore = new BalanceAndProxyAllowanceLazyStore(
- this._tokenWrapper,
- BlockParamLiteral.Latest,
- );
- const exchangeTradeEmulator = new ExchangeTransferSimulator(balanceAndProxyAllowanceLazyStore);
- const orderValidationUtils = await this._getOrderValidationUtilsAsync();
- for (const orderFillRequest of orderFillRequests) {
- await orderValidationUtils.validateFillOrKillOrderThrowIfInvalidAsync(
- exchangeTradeEmulator,
- orderFillRequest.signedOrder,
- orderFillRequest.takerTokenFillAmount,
- normalizedTakerAddress,
- zrxTokenAddress,
- );
- }
- }
-
- const orderAddressesValuesAndTakerTokenFillAmounts = _.map(orderFillRequests, request => {
- return [
- ...formatters.getOrderAddressesAndValues(request.signedOrder),
- request.takerTokenFillAmount,
- request.signedOrder.ecSignature.v,
- request.signedOrder.ecSignature.r,
- request.signedOrder.ecSignature.s,
- ];
- });
-
- // We use _.unzip<any> because _.unzip doesn't type check if values have different types :'(
- const [orderAddresses, orderValues, fillTakerTokenAmounts, vParams, rParams, sParams] = _.unzip<any>(
- orderAddressesValuesAndTakerTokenFillAmounts,
- );
- const txHash = await exchangeInstance.batchFillOrKillOrders.sendTransactionAsync(
- orderAddresses,
- orderValues,
- fillTakerTokenAmounts,
- vParams,
- rParams,
- sParams,
- {
- from: normalizedTakerAddress,
- gas: orderTransactionOpts.gasLimit,
- gasPrice: orderTransactionOpts.gasPrice,
- },
- );
- return txHash;
- }
- /**
- * Cancel a given fill amount of an order. Cancellations are cumulative.
- * @param order An object that conforms to the Order or SignedOrder interface.
- * The order you would like to cancel.
- * @param cancelTakerTokenAmount The amount (specified in taker tokens) that you would like to cancel.
- * @param transactionOpts Optional arguments this method accepts.
- * @return Transaction hash.
- */
- @decorators.asyncZeroExErrorHandler
- public async cancelOrderAsync(
- order: Order | SignedOrder,
- cancelTakerTokenAmount: BigNumber,
- orderTransactionOpts: OrderTransactionOpts = {},
- ): Promise<string> {
- assert.doesConformToSchema('order', order, schemas.orderSchema);
- assert.isValidBaseUnitAmount('takerTokenCancelAmount', cancelTakerTokenAmount);
- await assert.isSenderAddressAsync('order.maker', order.maker, this._web3Wrapper);
- const normalizedMakerAddress = order.maker.toLowerCase();
-
- const exchangeInstance = await this._getExchangeContractAsync();
-
- const shouldValidate = _.isUndefined(orderTransactionOpts.shouldValidate)
- ? SHOULD_VALIDATE_BY_DEFAULT
- : orderTransactionOpts.shouldValidate;
- if (shouldValidate) {
- const orderHash = getOrderHashHex(order);
- const unavailableTakerTokenAmount = await this.getUnavailableTakerAmountAsync(orderHash);
- OrderValidationUtils.validateCancelOrderThrowIfInvalid(
- order,
- cancelTakerTokenAmount,
- unavailableTakerTokenAmount,
- );
- }
-
- const [orderAddresses, orderValues] = formatters.getOrderAddressesAndValues(order);
- const txHash = await exchangeInstance.cancelOrder.sendTransactionAsync(
- orderAddresses,
- orderValues,
- cancelTakerTokenAmount,
- {
- from: normalizedMakerAddress,
- gas: orderTransactionOpts.gasLimit,
- gasPrice: orderTransactionOpts.gasPrice,
- },
- );
- return txHash;
- }
- /**
- * Batch version of cancelOrderAsync. Atomically cancels multiple orders in a single transaction.
- * All orders must be from the same maker.
- * @param orderCancellationRequests An array of objects that conform to the OrderCancellationRequest
- * interface.
- * @param transactionOpts Optional arguments this method accepts.
- * @return Transaction hash.
- */
- @decorators.asyncZeroExErrorHandler
- public async batchCancelOrdersAsync(
- orderCancellationRequests: OrderCancellationRequest[],
- orderTransactionOpts: OrderTransactionOpts = {},
- ): Promise<string> {
- assert.doesConformToSchema(
- 'orderCancellationRequests',
- orderCancellationRequests,
- schemas.orderCancellationRequestsSchema,
- );
- const exchangeContractAddresses = _.map(
- orderCancellationRequests,
- orderCancellationRequest => orderCancellationRequest.order.exchangeContractAddress,
- );
- assert.hasAtMostOneUniqueValue(
- exchangeContractAddresses,
- ExchangeContractErrs.BatchOrdersMustHaveSameExchangeAddress,
- );
- const makers = _.map(orderCancellationRequests, cancellationRequest => cancellationRequest.order.maker);
- assert.hasAtMostOneUniqueValue(makers, ExchangeContractErrs.MultipleMakersInSingleCancelBatchDisallowed);
- const maker = makers[0];
- await assert.isSenderAddressAsync('maker', maker, this._web3Wrapper);
- const normalizedMakerAddress = maker.toLowerCase();
-
- const shouldValidate = _.isUndefined(orderTransactionOpts.shouldValidate)
- ? SHOULD_VALIDATE_BY_DEFAULT
- : orderTransactionOpts.shouldValidate;
- if (shouldValidate) {
- for (const orderCancellationRequest of orderCancellationRequests) {
- const orderHash = getOrderHashHex(orderCancellationRequest.order);
- const unavailableTakerTokenAmount = await this.getUnavailableTakerAmountAsync(orderHash);
- OrderValidationUtils.validateCancelOrderThrowIfInvalid(
- orderCancellationRequest.order,
- orderCancellationRequest.takerTokenCancelAmount,
- unavailableTakerTokenAmount,
- );
- }
- }
- if (_.isEmpty(orderCancellationRequests)) {
- throw new Error(ExchangeContractErrs.BatchOrdersMustHaveAtLeastOneItem);
- }
- const exchangeInstance = await this._getExchangeContractAsync();
- const orderAddressesValuesAndTakerTokenCancelAmounts = _.map(orderCancellationRequests, cancellationRequest => {
- return [
- ...formatters.getOrderAddressesAndValues(cancellationRequest.order),
- cancellationRequest.takerTokenCancelAmount,
- ];
- });
- // We use _.unzip<any> because _.unzip doesn't type check if values have different types :'(
- const [orderAddresses, orderValues, cancelTakerTokenAmounts] = _.unzip<any>(
- orderAddressesValuesAndTakerTokenCancelAmounts,
- );
- const txHash = await exchangeInstance.batchCancelOrders.sendTransactionAsync(
- orderAddresses,
- orderValues,
- cancelTakerTokenAmounts,
- {
- from: normalizedMakerAddress,
- gas: orderTransactionOpts.gasLimit,
- gasPrice: orderTransactionOpts.gasPrice,
- },
- );
- return txHash;
- }
- /**
- * Subscribe to an event type emitted by the Exchange contract.
- * @param eventName The exchange contract event you would like to subscribe to.
- * @param indexFilterValues An object where the keys are indexed args returned by the event and
- * the value is the value you are interested in. E.g `{maker: aUserAddressHex}`
- * @param callback Callback that gets called when a log is added/removed
- * @return Subscription token used later to unsubscribe
- */
- public subscribe<ArgsType extends ExchangeContractEventArgs>(
- eventName: ExchangeEvents,
- indexFilterValues: IndexedFilterValues,
- callback: EventCallback<ArgsType>,
- ): string {
- assert.doesBelongToStringEnum('eventName', eventName, ExchangeEvents);
- assert.doesConformToSchema('indexFilterValues', indexFilterValues, schemas.indexFilterValuesSchema);
- assert.isFunction('callback', callback);
- const exchangeContractAddress = this.getContractAddress();
- const subscriptionToken = this._subscribe<ArgsType>(
- exchangeContractAddress,
- eventName,
- indexFilterValues,
- artifacts.Exchange.abi,
- callback,
- );
- return subscriptionToken;
- }
- /**
- * Cancel a subscription
- * @param subscriptionToken Subscription token returned by `subscribe()`
- */
- public unsubscribe(subscriptionToken: string): void {
- this._unsubscribe(subscriptionToken);
- }
- /**
- * Cancels all existing subscriptions
- */
- public unsubscribeAll(): void {
- super._unsubscribeAll();
- }
- /**
- * Gets historical logs without creating a subscription
- * @param eventName The exchange contract event you would like to subscribe to.
- * @param blockRange Block range to get logs from.
- * @param indexFilterValues An object where the keys are indexed args returned by the event and
- * the value is the value you are interested in. E.g `{_from: aUserAddressHex}`
- * @return Array of logs that match the parameters
- */
- public async getLogsAsync<ArgsType extends ExchangeContractEventArgs>(
- eventName: ExchangeEvents,
- blockRange: BlockRange,
- indexFilterValues: IndexedFilterValues,
- ): Promise<Array<LogWithDecodedArgs<ArgsType>>> {
- assert.doesBelongToStringEnum('eventName', eventName, ExchangeEvents);
- assert.doesConformToSchema('blockRange', blockRange, schemas.blockRangeSchema);
- assert.doesConformToSchema('indexFilterValues', indexFilterValues, schemas.indexFilterValuesSchema);
- const exchangeContractAddress = this.getContractAddress();
- const logs = await this._getLogsAsync<ArgsType>(
- exchangeContractAddress,
- eventName,
- blockRange,
- indexFilterValues,
- artifacts.Exchange.abi,
- );
- return logs;
- }
- /**
- * Retrieves the Ethereum address of the Exchange contract deployed on the network
- * that the user-passed web3 provider is connected to.
- * @returns The Ethereum address of the Exchange contract being used.
- */
- public getContractAddress(): string {
- const contractAddress = this._getContractAddress(artifacts.Exchange, this._contractAddressIfExists);
- return contractAddress;
- }
- /**
- * Checks if order is still fillable and throws an error otherwise. Useful for orderbook
- * pruning where you want to remove stale orders without knowing who the taker will be.
- * @param signedOrder An object that conforms to the SignedOrder interface. The
- * signedOrder you wish to validate.
- * @param opts An object that conforms to the ValidateOrderFillableOpts
- * interface. Allows specifying a specific fillTakerTokenAmount
- * to validate for.
- */
- public async validateOrderFillableOrThrowAsync(
- signedOrder: SignedOrder,
- opts?: ValidateOrderFillableOpts,
- ): Promise<void> {
- assert.doesConformToSchema('signedOrder', signedOrder, schemas.signedOrderSchema);
- const zrxTokenAddress = this.getZRXTokenAddress();
- const expectedFillTakerTokenAmount = !_.isUndefined(opts) ? opts.expectedFillTakerTokenAmount : undefined;
- const balanceAndProxyAllowanceLazyStore = new BalanceAndProxyAllowanceLazyStore(
- this._tokenWrapper,
- BlockParamLiteral.Latest,
- );
- const exchangeTradeEmulator = new ExchangeTransferSimulator(balanceAndProxyAllowanceLazyStore);
- const orderValidationUtils = await this._getOrderValidationUtilsAsync();
- await orderValidationUtils.validateOrderFillableOrThrowAsync(
- exchangeTradeEmulator,
- signedOrder,
- zrxTokenAddress,
- expectedFillTakerTokenAmount,
- );
- }
- /**
- * Checks if order fill will succeed and throws an error otherwise.
- * @param signedOrder An object that conforms to the SignedOrder interface. The
- * signedOrder you wish to fill.
- * @param fillTakerTokenAmount The total amount of the takerTokens you would like to fill.
- * @param takerAddress The user Ethereum address who would like to fill this order.
- * Must be available via the supplied Provider passed to 0x.js.
- */
- public async validateFillOrderThrowIfInvalidAsync(
- signedOrder: SignedOrder,
- fillTakerTokenAmount: BigNumber,
- takerAddress: string,
- ): Promise<void> {
- assert.doesConformToSchema('signedOrder', signedOrder, schemas.signedOrderSchema);
- assert.isValidBaseUnitAmount('fillTakerTokenAmount', fillTakerTokenAmount);
- await assert.isSenderAddressAsync('takerAddress', takerAddress, this._web3Wrapper);
- const normalizedTakerAddress = takerAddress.toLowerCase();
- const zrxTokenAddress = this.getZRXTokenAddress();
- const balanceAndProxyAllowanceLazyStore = new BalanceAndProxyAllowanceLazyStore(
- this._tokenWrapper,
- BlockParamLiteral.Latest,
- );
- const exchangeTradeEmulator = new ExchangeTransferSimulator(balanceAndProxyAllowanceLazyStore);
- const orderValidationUtils = await this._getOrderValidationUtilsAsync();
- await orderValidationUtils.validateFillOrderThrowIfInvalidAsync(
- exchangeTradeEmulator,
- signedOrder,
- fillTakerTokenAmount,
- normalizedTakerAddress,
- zrxTokenAddress,
- );
- }
- /**
- * Checks if cancelling a given order will succeed and throws an informative error if it won't.
- * @param order An object that conforms to the Order or SignedOrder interface.
- * The order you would like to cancel.
- * @param cancelTakerTokenAmount The amount (specified in taker tokens) that you would like to cancel.
- */
- public async validateCancelOrderThrowIfInvalidAsync(
- order: Order,
- cancelTakerTokenAmount: BigNumber,
- ): Promise<void> {
- assert.doesConformToSchema('order', order, schemas.orderSchema);
- assert.isValidBaseUnitAmount('cancelTakerTokenAmount', cancelTakerTokenAmount);
- const orderHash = getOrderHashHex(order);
- const unavailableTakerTokenAmount = await this.getUnavailableTakerAmountAsync(orderHash);
- OrderValidationUtils.validateCancelOrderThrowIfInvalid(
- order,
- cancelTakerTokenAmount,
- unavailableTakerTokenAmount,
- );
- }
- /**
- * Checks if calling fillOrKill on a given order will succeed and throws an informative error if it won't.
- * @param signedOrder An object that conforms to the SignedOrder interface. The
- * signedOrder you wish to fill.
- * @param fillTakerTokenAmount The total amount of the takerTokens you would like to fill.
- * @param takerAddress The user Ethereum address who would like to fill this order.
- * Must be available via the supplied Provider passed to 0x.js.
- */
- public async validateFillOrKillOrderThrowIfInvalidAsync(
- signedOrder: SignedOrder,
- fillTakerTokenAmount: BigNumber,
- takerAddress: string,
- ): Promise<void> {
- assert.doesConformToSchema('signedOrder', signedOrder, schemas.signedOrderSchema);
- assert.isValidBaseUnitAmount('fillTakerTokenAmount', fillTakerTokenAmount);
- await assert.isSenderAddressAsync('takerAddress', takerAddress, this._web3Wrapper);
- const normalizedTakerAddress = takerAddress.toLowerCase();
- const zrxTokenAddress = this.getZRXTokenAddress();
- const balanceAndProxyAllowanceLazyStore = new BalanceAndProxyAllowanceLazyStore(
- this._tokenWrapper,
- BlockParamLiteral.Latest,
- );
- const exchangeTradeEmulator = new ExchangeTransferSimulator(balanceAndProxyAllowanceLazyStore);
- const orderValidationUtils = await this._getOrderValidationUtilsAsync();
- await orderValidationUtils.validateFillOrKillOrderThrowIfInvalidAsync(
- exchangeTradeEmulator,
- signedOrder,
- fillTakerTokenAmount,
- normalizedTakerAddress,
- zrxTokenAddress,
- );
- }
- /**
- * Checks if rounding error will be > 0.1% when computing makerTokenAmount by doing:
- * `(fillTakerTokenAmount * makerTokenAmount) / takerTokenAmount`.
- * 0x Protocol does not accept any trades that result in large rounding errors. This means that tokens with few or
- * no decimals can only be filled in quantities and ratios that avoid large rounding errors.
- * @param fillTakerTokenAmount The amount of the order (in taker tokens baseUnits) that you wish to fill.
- * @param takerTokenAmount The order size on the taker side
- * @param makerTokenAmount The order size on the maker side
- */
- public async isRoundingErrorAsync(
- fillTakerTokenAmount: BigNumber,
- takerTokenAmount: BigNumber,
- makerTokenAmount: BigNumber,
- ): Promise<boolean> {
- assert.isValidBaseUnitAmount('fillTakerTokenAmount', fillTakerTokenAmount);
- assert.isValidBaseUnitAmount('takerTokenAmount', takerTokenAmount);
- assert.isValidBaseUnitAmount('makerTokenAmount', makerTokenAmount);
- const exchangeInstance = await this._getExchangeContractAsync();
- const isRoundingError = await exchangeInstance.isRoundingError.callAsync(
- fillTakerTokenAmount,
- takerTokenAmount,
- makerTokenAmount,
- );
- return isRoundingError;
- }
- /**
- * Checks if logs contain LogError, which is emitted by Exchange contract on transaction failure.
- * @param logs Transaction logs as returned by `zeroEx.awaitTransactionMinedAsync`
- */
- public throwLogErrorsAsErrors(logs: Array<LogWithDecodedArgs<DecodedLogArgs> | LogEntry>): void {
- const errLog = _.find(logs, {
- event: ExchangeEvents.LogError,
- });
- if (!_.isUndefined(errLog)) {
- const logArgs = (errLog as LogWithDecodedArgs<LogErrorContractEventArgs>).args;
- const errCode = logArgs.errorId;
- const errMessage = this._exchangeContractErrCodesToMsg[errCode];
- throw new Error(errMessage);
- }
- }
- /**
- * Gets the latest OrderState of a signedOrder
- * @param signedOrder The signedOrder
- * @param stateLayer Optional, desired blockchain state layer (defaults to latest).
- * @return OrderState of the signedOrder
- */
- public async getOrderStateAsync(
- signedOrder: SignedOrder,
- stateLayer: BlockParamLiteral = BlockParamLiteral.Latest,
- ): Promise<OrderState> {
- const simpleBalanceAndProxyAllowanceFetcher = new SimpleBalanceAndProxyAllowanceFetcher(
- this._tokenWrapper,
- stateLayer,
- );
- const simpleOrderFilledCancelledFetcher = new SimpleOrderFilledCancelledFetcher(this, stateLayer);
- const orderStateUtils = new OrderStateUtils(
- simpleBalanceAndProxyAllowanceFetcher,
- simpleOrderFilledCancelledFetcher,
- );
- const orderState = orderStateUtils.getOrderStateAsync(signedOrder);
- return orderState;
- }
- /**
- * Returns the ZRX token address used by the exchange contract.
- * @return Address of ZRX token
- */
- public getZRXTokenAddress(): string {
- const contractAddress = this._getContractAddress(artifacts.ZRX, this._zrxContractAddressIfExists);
- return contractAddress;
- }
- // tslint:disable:no-unused-variable
- private _invalidateContractInstances(): void {
- this.unsubscribeAll();
- delete this._exchangeContractIfExists;
- }
- private async _isValidSignatureUsingContractCallAsync(
- dataHex: string,
- ecSignature: ECSignature,
- signerAddressHex: string,
- ): Promise<boolean> {
- assert.isHexString('dataHex', dataHex);
- assert.doesConformToSchema('ecSignature', ecSignature, schemas.ecSignatureSchema);
- assert.isETHAddressHex('signerAddressHex', signerAddressHex);
- const normalizedSignerAddress = signerAddressHex.toLowerCase();
-
- const exchangeInstance = await this._getExchangeContractAsync();
-
- const isValidSignature = await exchangeInstance.isValidSignature.callAsync(
- normalizedSignerAddress,
- dataHex,
- ecSignature.v,
- ecSignature.r,
- ecSignature.s,
- );
- return isValidSignature;
- }
- private async _getOrderHashHexUsingContractCallAsync(order: Order | SignedOrder): Promise<string> {
- const exchangeInstance = await this._getExchangeContractAsync();
- const [orderAddresses, orderValues] = formatters.getOrderAddressesAndValues(order);
- const orderHashHex = await exchangeInstance.getOrderHash.callAsync(orderAddresses, orderValues);
- return orderHashHex;
- }
- private async _getOrderValidationUtilsAsync(): Promise<OrderValidationUtils> {
- if (!_.isUndefined(this._orderValidationUtilsIfExists)) {
- return this._orderValidationUtilsIfExists;
- }
- const exchangeContract = await this._getExchangeContractAsync();
- this._orderValidationUtilsIfExists = new OrderValidationUtils(exchangeContract);
- return this._orderValidationUtilsIfExists;
- }
- // tslint:enable:no-unused-variable
- private async _getExchangeContractAsync(): Promise<ExchangeContract> {
- if (!_.isUndefined(this._exchangeContractIfExists)) {
- return this._exchangeContractIfExists;
- }
- const [abi, address] = await this._getContractAbiAndAddressFromArtifactsAsync(
- artifacts.Exchange,
- this._contractAddressIfExists,
- );
- const contractInstance = new ExchangeContract(
- abi,
- address,
- this._web3Wrapper.getProvider(),
- this._web3Wrapper.getContractDefaults(),
- );
- this._exchangeContractIfExists = contractInstance;
- return this._exchangeContractIfExists;
- }
-} // tslint:disable:max-file-line-count
generated by cgit (git 2.34.1) at 2024-11-20 00:06:20 +0800