Publish

- @0x/contracts-integrations@2.7.44
 - @0x/asset-swapper@6.14.0

.circleci/config.yml

@@ -2,11 +2,11 @@ version: 2.1
 
 jobs:
     build:
-        resource_class: large
+        resource_class: xlarge
         docker:
             - image: node:12
         environment:
-            NODE_OPTIONS: '--max-old-space-size=6442'
+            NODE_OPTIONS: '--max-old-space-size=16384'
         working_directory: ~/repo
         steps:
             - checkout

contracts/integrations/package.json

@@ -1,6 +1,6 @@
 {
     "name": "@0x/contracts-integrations",
-    "version": "2.7.41",
+    "version": "2.7.44",
     "private": true,
     "engines": {
         "node": ">=6.12"
@@ -93,7 +93,7 @@
         "typescript": "4.2.2"
     },
     "dependencies": {
-        "@0x/asset-swapper": "^6.11.0",
+        "@0x/asset-swapper": "^6.14.0",
         "@0x/base-contract": "^6.4.0",
         "@0x/contracts-asset-proxy": "^3.7.11",
         "@0x/contracts-erc1155": "^2.1.29",

packages/asset-swapper/CHANGELOG.json

@@ -1,4 +1,34 @@
 [
+    {
+        "version": "6.14.0",
+        "changes": [
+            {
+                "note": "Add support for additional sources and intermediate tokens on Ropsten",
+                "pr": 231
+            }
+        ],
+        "timestamp": 1620810800
+    },
+    {
+        "version": "6.13.0",
+        "changes": [
+            {
+                "note": "Add LiquidityProvider to BSC sources",
+                "pr": 234
+            }
+        ],
+        "timestamp": 1620703098
+    },
+    {
+        "version": "6.12.0",
+        "changes": [
+            {
+                "note": "`TwoHopSampler` to use `call` over `staticcall` in order to support sources like `Uniswap_V3` and `Balancer_V2`",
+                "pr": 233
+            }
+        ],
+        "timestamp": 1620610602
+    },
     {
         "version": "6.11.0",
         "changes": [

packages/asset-swapper/CHANGELOG.md

@@ -5,6 +5,18 @@ Edit the package's CHANGELOG.json file only.
 
 CHANGELOG
 
+## v6.14.0 - _May 12, 2021_
+
+    * Add support for additional sources and intermediate tokens on Ropsten (#231)
+
+## v6.13.0 - _May 11, 2021_
+
+    * Add LiquidityProvider to BSC sources (#234)
+
+## v6.12.0 - _May 10, 2021_
+
+    * `TwoHopSampler` to use `call` over `staticcall` in order to support sources like `Uniswap_V3` and `Balancer_V2` (#233)
+
 ## v6.11.0 - _May 7, 2021_
 
     * Add price comparisons data separate from the quote report (#219)

packages/asset-swapper/contracts/src/TwoHopSampler.sol

@@ -37,7 +37,6 @@ contract TwoHopSampler {
         uint256 sellAmount
     )
         public
-        view
         returns (
             HopInfo memory firstHop,
             HopInfo memory secondHop,
@@ -47,7 +46,7 @@ contract TwoHopSampler {
         uint256 intermediateAssetAmount = 0;
         for (uint256 i = 0; i != firstHopCalls.length; ++i) {
             firstHopCalls[i].writeUint256(firstHopCalls[i].length - 32, sellAmount);
-            (bool didSucceed, bytes memory returnData) = address(this).staticcall(firstHopCalls[i]);
+            (bool didSucceed, bytes memory returnData) = address(this).call(firstHopCalls[i]);
             if (didSucceed) {
                 uint256 amount = returnData.readUint256(returnData.length - 32);
                 if (amount > intermediateAssetAmount) {
@@ -62,7 +61,7 @@ contract TwoHopSampler {
         }
         for (uint256 j = 0; j != secondHopCalls.length; ++j) {
             secondHopCalls[j].writeUint256(secondHopCalls[j].length - 32, intermediateAssetAmount);
-            (bool didSucceed, bytes memory returnData) = address(this).staticcall(secondHopCalls[j]);
+            (bool didSucceed, bytes memory returnData) = address(this).call(secondHopCalls[j]);
             if (didSucceed) {
                 uint256 amount = returnData.readUint256(returnData.length - 32);
                 if (amount > buyAmount) {
@@ -80,7 +79,6 @@ contract TwoHopSampler {
         uint256 buyAmount
     )
         public
-        view
         returns (
             HopInfo memory firstHop,
             HopInfo memory secondHop,
@@ -91,7 +89,7 @@ contract TwoHopSampler {
         uint256 intermediateAssetAmount = uint256(-1);
         for (uint256 j = 0; j != secondHopCalls.length; ++j) {
             secondHopCalls[j].writeUint256(secondHopCalls[j].length - 32, buyAmount);
-            (bool didSucceed, bytes memory returnData) = address(this).staticcall(secondHopCalls[j]);
+            (bool didSucceed, bytes memory returnData) = address(this).call(secondHopCalls[j]);
             if (didSucceed) {
                 uint256 amount = returnData.readUint256(returnData.length - 32);
                 if (
@@ -109,7 +107,7 @@ contract TwoHopSampler {
         }
         for (uint256 i = 0; i != firstHopCalls.length; ++i) {
             firstHopCalls[i].writeUint256(firstHopCalls[i].length - 32, intermediateAssetAmount);
-            (bool didSucceed, bytes memory returnData) = address(this).staticcall(firstHopCalls[i]);
+            (bool didSucceed, bytes memory returnData) = address(this).call(firstHopCalls[i]);
             if (didSucceed) {
                 uint256 amount = returnData.readUint256(returnData.length - 32);
                 if (

packages/asset-swapper/contracts/src/UniswapV3Sampler.sol

@@ -57,9 +57,9 @@ contract UniswapV3Sampler
     /// @param quoter UniswapV3 Quoter contract.
     /// @param path Token route. Should be takerToken -> makerToken
     /// @param takerTokenAmounts Taker token sell amount for each sample.
+    /// @return uniswapPaths The encoded uniswap path for each sample.
     /// @return makerTokenAmounts Maker amounts bought at each taker token
     ///         amount.
-    /// @return uniswapPaths The encoded uniswap path for each sample.
     function sampleSellsFromUniswapV3(
         IUniswapV3Quoter quoter,
         IERC20TokenV06[] memory path,
@@ -67,8 +67,8 @@ contract UniswapV3Sampler
     )
         public
         returns (
-            uint256[] memory makerTokenAmounts,
-            bytes[] memory uniswapPaths
+            bytes[] memory uniswapPaths,
+            uint256[] memory makerTokenAmounts
         )
     {
         IUniswapV3Pool[][] memory poolPaths =
@@ -108,9 +108,9 @@ contract UniswapV3Sampler
     /// @param quoter UniswapV3 Quoter contract.
     /// @param path Token route. Should be takerToken -> makerToken.
     /// @param makerTokenAmounts Maker token buy amount for each sample.
+    /// @return uniswapPaths The encoded uniswap path for each sample.
     /// @return takerTokenAmounts Taker amounts sold at each maker token
     ///         amount.
-    /// @return uniswapPaths The encoded uniswap path for each sample.
     function sampleBuysFromUniswapV3(
         IUniswapV3Quoter quoter,
         IERC20TokenV06[] memory path,
@@ -118,8 +118,8 @@ contract UniswapV3Sampler
     )
         public
         returns (
-            uint256[] memory takerTokenAmounts,
-            bytes[] memory uniswapPaths
+            bytes[] memory uniswapPaths,
+            uint256[] memory takerTokenAmounts
         )
     {
         IUniswapV3Pool[][] memory poolPaths =

packages/asset-swapper/package.json

@@ -1,6 +1,6 @@
 {
     "name": "@0x/asset-swapper",
-    "version": "6.11.0",
+    "version": "6.14.0",
     "engines": {
         "node": ">=6.12"
     },
@@ -67,7 +67,7 @@
         "@0x/dev-utils": "^4.2.7",
         "@0x/json-schemas": "^6.1.3",
         "@0x/protocol-utils": "^1.6.0",
-        "@0x/quote-server": "^5.0.0",
+        "@0x/quote-server": "^6.0.2",
         "@0x/types": "^3.3.3",
         "@0x/typescript-typings": "^5.2.0",
         "@0x/utils": "^6.4.3",

packages/asset-swapper/src/index.ts

@@ -5,7 +5,12 @@ export {
     SendTransactionOpts,
 } from '@0x/base-contract';
 export { ContractAddresses } from '@0x/contract-addresses';
-export { V4RFQFirmQuote, V4RFQIndicativeQuote, V4SignedRfqOrder, TakerRequestQueryParams } from '@0x/quote-server';
+export {
+    V4RFQFirmQuote,
+    V4RFQIndicativeQuote,
+    V4SignedRfqOrder,
+    TakerRequestQueryParamsUnnested as TakerRequestQueryParams,
+} from '@0x/quote-server';
 export { Asset, AssetPairsItem, DecodedLogEvent, EventCallback, IndexedFilterValues } from '@0x/types';
 export { BigNumber } from '@0x/utils';
 export {

packages/asset-swapper/src/types.ts

@@ -7,7 +7,8 @@ import {
     RfqOrderFields,
     Signature,
 } from '@0x/protocol-utils';
-import { TakerRequestQueryParams, V4SignedRfqOrder } from '@0x/quote-server';
+import { TakerRequestQueryParamsUnnested, V4SignedRfqOrder } from '@0x/quote-server';
+import { Fee } from '@0x/quote-server/lib/src/types';
 import { BigNumber } from '@0x/utils';
 import { AxiosRequestConfig } from 'axios';
 
@@ -232,6 +233,12 @@ export type SwapQuoteOrdersBreakdown = Partial<
  *                       If set to `true` and `ERC20BridgeSource.Native` is part of the `excludedSources`
  *                       array in `SwapQuoteRequestOpts`, an Error will be raised.
  */
+
+export interface RfqmRequestOptions extends RfqRequestOpts {
+    isLastLook: true;
+    fee: Fee;
+}
+
 export interface RfqRequestOpts {
     takerAddress: string;
     txOrigin: string;
@@ -242,6 +249,7 @@ export interface RfqRequestOpts {
     nativeExclusivelyRFQ?: boolean;
     altRfqAssetOfferings?: AltRfqMakerAssetOfferings;
     isLastLook?: boolean;
+    fee?: Fee;
 }
 
 /**
@@ -366,7 +374,7 @@ export enum OrderPrunerPermittedFeeTypes {
 export interface MockedRfqQuoteResponse {
     endpoint: string;
     requestApiKey: string;
-    requestParams: TakerRequestQueryParams;
+    requestParams: TakerRequestQueryParamsUnnested;
     responseData: any;
     responseCode: number;
     callback?: (config: any) => Promise<any>;

packages/asset-swapper/src/utils/alt_mm_implementation_utils.ts

@@ -1,5 +1,5 @@
 import { Web3Wrapper } from '@0x/dev-utils';
-import { TakerRequestQueryParams, V4RFQFirmQuote, V4RFQIndicativeQuote } from '@0x/quote-server';
+import { TakerRequestQueryParamsUnnested, V4RFQFirmQuote, V4RFQIndicativeQuote } from '@0x/quote-server';
 import { BigNumber } from '@0x/utils';
 import { AxiosInstance, CancelToken } from 'axios';
 
@@ -123,7 +123,7 @@ export async function returnQuoteFromAltMMAsync<ResponseT>(
     takerToken: string,
     maxResponseTimeMs: number,
     altRfqAssetOfferings: AltRfqMakerAssetOfferings,
-    takerRequestQueryParams: TakerRequestQueryParams,
+    takerRequestQueryParams: TakerRequestQueryParamsUnnested,
     axiosInstance: AxiosInstance,
     warningLogger: LogFunction,
     cancelToken: CancelToken,

packages/asset-swapper/src/utils/market_operation_utils/constants.ts

@@ -99,6 +99,8 @@ export const SELL_SOURCE_FILTER_BY_CHAIN_ID = valueByChainId<SourceFilters>(
             ERC20BridgeSource.Uniswap,
             ERC20BridgeSource.UniswapV2,
             ERC20BridgeSource.UniswapV3,
+            ERC20BridgeSource.Curve,
+            ERC20BridgeSource.Mooniswap,
         ]),
         [ChainId.Rinkeby]: new SourceFilters([ERC20BridgeSource.Native]),
         [ChainId.Kovan]: new SourceFilters([ERC20BridgeSource.Native]),
@@ -120,6 +122,7 @@ export const SELL_SOURCE_FILTER_BY_CHAIN_ID = valueByChainId<SourceFilters>(
             ERC20BridgeSource.CafeSwap,
             ERC20BridgeSource.CheeseSwap,
             ERC20BridgeSource.JulSwap,
+            ERC20BridgeSource.LiquidityProvider,
         ]),
     },
 
@@ -169,6 +172,8 @@ export const BUY_SOURCE_FILTER_BY_CHAIN_ID = valueByChainId<SourceFilters>(
             ERC20BridgeSource.Uniswap,
             ERC20BridgeSource.UniswapV2,
             ERC20BridgeSource.UniswapV3,
+            ERC20BridgeSource.Curve,
+            ERC20BridgeSource.Mooniswap,
         ]),
         [ChainId.Rinkeby]: new SourceFilters([ERC20BridgeSource.Native]),
         [ChainId.Kovan]: new SourceFilters([ERC20BridgeSource.Native]),
@@ -190,6 +195,7 @@ export const BUY_SOURCE_FILTER_BY_CHAIN_ID = valueByChainId<SourceFilters>(
             ERC20BridgeSource.CafeSwap,
             ERC20BridgeSource.CheeseSwap,
             ERC20BridgeSource.JulSwap,
+            ERC20BridgeSource.LiquidityProvider,
         ]),
     },
     new SourceFilters([]),
@@ -414,7 +420,11 @@ export const DEFAULT_INTERMEDIATE_TOKENS_BY_CHAIN_ID = valueByChainId<string[]>(
             '0x2170ed0880ac9a755fd29b2688956bd959f933f8', // ETH
             '0x55d398326f99059ff775485246999027b3197955', // BUSD-T
         ],
-        [ChainId.Ropsten]: [getContractAddressesForChainOrThrow(ChainId.Ropsten).etherToken],
+        [ChainId.Ropsten]: [
+            getContractAddressesForChainOrThrow(ChainId.Ropsten).etherToken,
+            '0xad6d458402f60fd3bd25163575031acdce07538d', // DAI
+            '0x07865c6e87b9f70255377e024ace6630c1eaa37f', // USDC
+        ],
     },
     [],
 );
@@ -453,7 +463,10 @@ export const NATIVE_FEE_TOKEN_BY_CHAIN_ID = valueByChainId<string>(
     NULL_ADDRESS,
 );
 
-export const NATIVE_FEE_TOKEN_AMOUNT_BY_CHAIN_ID = valueByChainId({}, ONE_ETHER);
+export const NATIVE_FEE_TOKEN_AMOUNT_BY_CHAIN_ID = valueByChainId(
+    { [ChainId.Mainnet]: ONE_ETHER.times(0.1) },
+    ONE_ETHER,
+);
 
 // Order dependent
 const CURVE_TRI_POOL_MAINNET_TOKENS = [MAINNET_TOKENS.DAI, MAINNET_TOKENS.USDC, MAINNET_TOKENS.USDT];

packages/asset-swapper/src/utils/market_operation_utils/sampler_operations.ts

@@ -1,6 +1,6 @@
 import { ChainId } from '@0x/contract-addresses';
 import { LimitOrderFields } from '@0x/protocol-utils';
-import { BigNumber } from '@0x/utils';
+import { BigNumber, logUtils } from '@0x/utils';
 import * as _ from 'lodash';
 
 import { SamplerCallResult, SignedNativeOrder } from '../../types';
@@ -692,7 +692,7 @@ export class SamplerOperations {
             function: this._samplerContract.sampleSellsFromUniswapV3,
             params: [quoter, tokenAddressPath, takerFillAmounts],
             callback: (callResults: string, fillData: UniswapV3FillData): BigNumber[] => {
-                const [samples, paths] = this._samplerContract.getABIDecodedReturnData<[BigNumber[], string[]]>(
+                const [paths, samples] = this._samplerContract.getABIDecodedReturnData<[string[], BigNumber[]]>(
                     'sampleSellsFromUniswapV3',
                     callResults,
                 );
@@ -720,7 +720,7 @@ export class SamplerOperations {
             function: this._samplerContract.sampleBuysFromUniswapV3,
             params: [quoter, tokenAddressPath, makerFillAmounts],
             callback: (callResults: string, fillData: UniswapV3FillData): BigNumber[] => {
-                const [samples, paths] = this._samplerContract.getABIDecodedReturnData<[BigNumber[], string[]]>(
+                const [paths, samples] = this._samplerContract.getABIDecodedReturnData<[string[], BigNumber[]]>(
                     'sampleBuysFromUniswapV3',
                     callResults,
                 );
@@ -783,7 +783,10 @@ export class SamplerOperations {
                     };
                 });
             },
-            () => [],
+            () => {
+                logUtils.warn('SamplerContractOperation: Two hop sampler reverted');
+                return [];
+            },
         );
     }
 
@@ -838,7 +841,10 @@ export class SamplerOperations {
                     };
                 });
             },
-            () => [],
+            () => {
+                logUtils.warn('SamplerContractOperation: Two hop sampler reverted');
+                return [];
+            },
         );
     }
 

packages/asset-swapper/src/utils/quote_requestor.ts

@@ -1,6 +1,12 @@
 import { schemas, SchemaValidator } from '@0x/json-schemas';
 import { FillQuoteTransformerOrderType, Signature } from '@0x/protocol-utils';
-import { TakerRequestQueryParams, V4RFQFirmQuote, V4RFQIndicativeQuote, V4SignedRfqOrder } from '@0x/quote-server';
+import {
+    TakerRequestQueryParamsUnnested,
+    V4RFQFirmQuote,
+    V4RFQIndicativeQuote,
+    V4SignedRfqOrder,
+} from '@0x/quote-server';
+import { Fee } from '@0x/quote-server/lib/src/types';
 import { BigNumber, NULL_ADDRESS } from '@0x/utils';
 import axios, { AxiosInstance } from 'axios';
 
@@ -11,6 +17,7 @@ import {
     LogFunction,
     MarketOperation,
     RfqMakerAssetOfferings,
+    RfqmRequestOptions,
     RfqPairType,
     RfqRequestOpts,
     SignedNativeOrder,
@@ -84,7 +91,8 @@ export class QuoteRequestor {
         assetFillAmount: BigNumber,
         comparisonPrice?: BigNumber,
         isLastLook?: boolean | undefined,
-    ): TakerRequestQueryParams {
+        fee?: Fee | undefined,
+    ): TakerRequestQueryParamsUnnested {
         const { buyAmountBaseUnits, sellAmountBaseUnits } =
             marketOperation === MarketOperation.Buy
                 ? {
@@ -97,7 +105,7 @@ export class QuoteRequestor {
                   };
 
         const requestParamsWithBigNumbers: Pick<
-            TakerRequestQueryParams,
+            TakerRequestQueryParamsUnnested,
             | 'txOrigin'
             | 'takerAddress'
             | 'buyTokenAddress'
@@ -105,6 +113,9 @@ export class QuoteRequestor {
             | 'comparisonPrice'
             | 'isLastLook'
             | 'protocolVersion'
+            | 'feeAmount'
+            | 'feeToken'
+            | 'feeType'
         > = {
             txOrigin,
             takerAddress,
@@ -114,7 +125,13 @@ export class QuoteRequestor {
             protocolVersion: '4',
         };
         if (isLastLook) {
+            if (fee === undefined) {
+                throw new Error(`isLastLook cannot be passed without a fee parameter`);
+            }
             requestParamsWithBigNumbers.isLastLook = isLastLook.toString();
+            requestParamsWithBigNumbers.feeAmount = fee.amount.toString();
+            requestParamsWithBigNumbers.feeToken = fee.token;
+            requestParamsWithBigNumbers.feeType = fee.type;
         }
 
         // convert BigNumbers to strings
@@ -181,12 +198,11 @@ export class QuoteRequestor {
         assetFillAmount: BigNumber,
         marketOperation: MarketOperation,
         comparisonPrice: BigNumber | undefined,
-        options: RfqRequestOpts,
+        options: RfqmRequestOptions,
     ): Promise<SignedNativeOrder[]> {
         const _opts: RfqRequestOpts = {
             ...constants.DEFAULT_RFQT_REQUEST_OPTS,
             ...options,
-            isLastLook: true,
         };
 
         return this._fetchAndValidateFirmQuotesAsync(
@@ -230,12 +246,11 @@ export class QuoteRequestor {
         assetFillAmount: BigNumber,
         marketOperation: MarketOperation,
         comparisonPrice: BigNumber | undefined,
-        options: RfqRequestOpts,
+        options: RfqmRequestOptions,
     ): Promise<V4RFQIndicativeQuote[]> {
         const _opts: RfqRequestOpts = {
             ...constants.DEFAULT_RFQT_REQUEST_OPTS,
             ...options,
-            isLastLook: true,
         };
 
         return this._fetchAndValidateIndicativeQuotesAsync(
@@ -344,6 +359,7 @@ export class QuoteRequestor {
             assetFillAmount,
             comparisonPrice,
             options.isLastLook,
+            options.fee,
         );
 
         const quotePath = (() => {

packages/asset-swapper/test/quote_requestor_test.ts

@@ -1,6 +1,6 @@
 import { tokenUtils } from '@0x/dev-utils';
-import { FillQuoteTransformerOrderType, SignatureType } from '@0x/protocol-utils';
-import { TakerRequestQueryParams, V4RFQIndicativeQuote } from '@0x/quote-server';
+import { ETH_TOKEN_ADDRESS, FillQuoteTransformerOrderType, SignatureType } from '@0x/protocol-utils';
+import { TakerRequestQueryParamsUnnested, V4RFQIndicativeQuote } from '@0x/quote-server';
 import { StatusCodes } from '@0x/types';
 import { BigNumber, logUtils } from '@0x/utils';
 import Axios from 'axios';
@@ -75,7 +75,7 @@ describe('QuoteRequestor', async () => {
             const mockedRequests: MockedRfqQuoteResponse[] = [];
             const altMockedRequests: AltMockedRfqQuoteResponse[] = [];
 
-            const expectedParams: TakerRequestQueryParams = {
+            const expectedParams: TakerRequestQueryParamsUnnested = {
                 sellTokenAddress: takerToken,
                 buyTokenAddress: makerToken,
                 sellAmountBaseUnits: '10000',
@@ -84,6 +84,9 @@ describe('QuoteRequestor', async () => {
                 txOrigin,
                 isLastLook: 'true', // the major difference between RFQ-T and RFQ-M
                 protocolVersion: '4',
+                feeAmount: '1000000000',
+                feeToken: ETH_TOKEN_ADDRESS,
+                feeType: 'fixed',
             };
             const mockedDefaults = {
                 requestApiKey: apiKey,
@@ -242,6 +245,12 @@ describe('QuoteRequestor', async () => {
                             txOrigin: takerAddress,
                             intentOnFilling: true,
                             altRfqAssetOfferings,
+                            isLastLook: true,
+                            fee: {
+                                amount: new BigNumber('1000000000'),
+                                token: ETH_TOKEN_ADDRESS,
+                                type: 'fixed',
+                            },
                         },
                     );
                     expect(resp).to.deep.eq([
@@ -265,7 +274,7 @@ describe('QuoteRequestor', async () => {
             const mockedRequests: MockedRfqQuoteResponse[] = [];
             const altMockedRequests: AltMockedRfqQuoteResponse[] = [];
 
-            const expectedParams: TakerRequestQueryParams = {
+            const expectedParams: TakerRequestQueryParamsUnnested = {
                 sellTokenAddress: takerToken,
                 buyTokenAddress: makerToken,
                 sellAmountBaseUnits: '10000',
@@ -451,7 +460,7 @@ describe('QuoteRequestor', async () => {
             // Set up RFQ responses
             // tslint:disable-next-line:array-type
             const mockedRequests: MockedRfqQuoteResponse[] = [];
-            const expectedParams: TakerRequestQueryParams = {
+            const expectedParams: TakerRequestQueryParamsUnnested = {
                 sellTokenAddress: takerToken,
                 buyTokenAddress: makerToken,
                 sellAmountBaseUnits: '10000',
@@ -460,6 +469,9 @@ describe('QuoteRequestor', async () => {
                 txOrigin: takerAddress,
                 isLastLook: 'true', // the major difference between RFQ-T and RFQ-M
                 protocolVersion: '4',
+                feeAmount: '1000000000',
+                feeToken: ETH_TOKEN_ADDRESS,
+                feeType: 'fixed',
             };
             const mockedDefaults = {
                 requestApiKey: apiKey,
@@ -543,6 +555,12 @@ describe('QuoteRequestor', async () => {
                             takerAddress,
                             txOrigin: takerAddress,
                             intentOnFilling: true,
+                            isLastLook: true,
+                            fee: {
+                                type: 'fixed',
+                                token: ETH_TOKEN_ADDRESS,
+                                amount: new BigNumber('1000000000'),
+                            },
                         },
                     );
                     expect(resp.sort()).to.eql([successfulQuote1, successfulQuote1].sort());
@@ -571,7 +589,7 @@ describe('QuoteRequestor', async () => {
             // Set up RFQT responses
             // tslint:disable-next-line:array-type
             const mockedRequests: MockedRfqQuoteResponse[] = [];
-            const expectedParams: TakerRequestQueryParams = {
+            const expectedParams: TakerRequestQueryParamsUnnested = {
                 sellTokenAddress: takerToken,
                 buyTokenAddress: makerToken,
                 sellAmountBaseUnits: '10000',
@@ -678,7 +696,7 @@ describe('QuoteRequestor', async () => {
             // Set up RFQT responses
             // tslint:disable-next-line:array-type
             const mockedRequests: MockedRfqQuoteResponse[] = [];
-            const expectedParams: TakerRequestQueryParams = {
+            const expectedParams: TakerRequestQueryParamsUnnested = {
                 sellTokenAddress: takerToken,
                 buyTokenAddress: makerToken,
                 sellAmountBaseUnits: '10000',
@@ -763,7 +781,7 @@ describe('QuoteRequestor', async () => {
             // Set up RFQT responses
             // tslint:disable-next-line:array-type
             const mockedRequests: MockedRfqQuoteResponse[] = [];
-            const expectedParams: TakerRequestQueryParams = {
+            const expectedParams: TakerRequestQueryParamsUnnested = {
                 sellTokenAddress: takerToken,
                 buyTokenAddress: makerToken,
                 buyAmountBaseUnits: '10000',

yarn.lock

@@ -783,7 +783,7 @@
     lodash "^4.17.11"
     web3-provider-engine "14.0.6"
 
-"@0x/json-schemas@^5.0.1", "@0x/json-schemas@^5.0.7", "@0x/json-schemas@^5.3.3":
+"@0x/json-schemas@^5.0.1", "@0x/json-schemas@^5.3.3":
   version "5.3.3"
   resolved "https://registry.yarnpkg.com/@0x/json-schemas/-/json-schemas-5.3.3.tgz#4b9de100385ca23b0cd58a454165df2e9758e453"
   dependencies:
@@ -801,7 +801,7 @@
     jsonschema "^1.2.0"
     lodash.values "^4.3.0"
 
-"@0x/json-schemas@^6.1.3":
+"@0x/json-schemas@^6.0.1", "@0x/json-schemas@^6.1.3":
   version "6.1.3"
   resolved "https://registry.yarnpkg.com/@0x/json-schemas/-/json-schemas-6.1.3.tgz#da71ed2e50ae6813a6d4d0fe5f8ad69b8e6a7435"
   dependencies:
@@ -850,11 +850,12 @@
     typedoc "~0.16.11"
     yargs "^10.0.3"
 
-"@0x/quote-server@^5.0.0":
-  version "5.0.0"
-  resolved "https://registry.yarnpkg.com/@0x/quote-server/-/quote-server-5.0.0.tgz#15554099bdfdf71e2910430860257d622f24f703"
+"@0x/quote-server@^6.0.2":
+  version "6.0.2"
+  resolved "https://registry.yarnpkg.com/@0x/quote-server/-/quote-server-6.0.2.tgz#cb99e00c737e0f97a2a32bc7e7be6db65243c3af"
+  integrity sha512-SS5LfAgKSRjEszWVZl5UtRDBkrsqAvYn/lPB4hxtKky8XitClUYFQ2pSnrFuyQSVft3tFxH4p7eC65YQN5wkcA==
   dependencies:
-    "@0x/json-schemas" "^5.0.7"
+    "@0x/json-schemas" "^6.0.1"
     "@0x/order-utils" "^10.2.4"
     "@0x/protocol-utils" "^1.0.1"
     "@0x/utils" "^5.4.1"