initial commit of exchange_swap_quote consumer

packages/asset-buyer/src/quote_consumers/exchange_swap_quote_consumer.ts

@@ -0,0 +1,60 @@
+import { ContractWrappers, ContractWrappersError, ForwarderWrapperError, SignedOrder } from '@0x/contract-wrappers';
+import { AbiEncoder, abiUtils, BigNumber, providerUtils } from '@0x/utils';
+import { SupportedProvider, Web3Wrapper, ZeroExProvider } from '@0x/web3-wrapper';
+import { MethodAbi } from 'ethereum-types';
+import * as _ from 'lodash';
+
+import { constants } from '../constants';
+import {
+    AssetSwapQuoterError,
+    CalldataInformation,
+    SmartContractParams,
+    SwapQuote,
+    SwapQuoteConsumer,
+    SwapQuoteConsumerOpts,
+    SwapQuoteExecutionOpts,
+    SwapQuoteGetOutputOpts,
+    SwapQuoteInfo,
+} from '../types';
+import { assert } from '../utils/assert';
+import { utils } from '../utils/utils';
+
+import { assetDataUtils } from '../utils/asset_data_utils';
+
+export class ExchangeSwapQuoteConsumer implements SwapQuoteConsumer {
+
+    public readonly provider: ZeroExProvider;
+    public readonly networkId: number;
+
+    private readonly _contractWrappers: ContractWrappers;
+
+    constructor(
+        supportedProvider: SupportedProvider,
+        options: Partial<SwapQuoteConsumerOpts> = {},
+    ) {
+        const { networkId } = _.merge(
+            {},
+            constants.DEFAULT_ASSET_SWAP_QUOTER_OPTS,
+            options,
+        );
+        const provider = providerUtils.standardizeOrThrow(supportedProvider);
+        assert.isNumber('networkId', networkId);
+        this.provider = provider;
+        this.networkId = networkId;
+        this._contractWrappers = new ContractWrappers(this.provider, {
+            networkId,
+        });
+    }
+
+    public getCalldataOrThrow = (quote: SwapQuote, opts: Partial<SwapQuoteGetOutputOpts>): CalldataInformation => {
+
+    }
+    
+    public getSmartContractParamsOrThrow = (quote: SwapQuote, opts: Partial<SwapQuoteGetOutputOpts>): SmartContractParams => {
+
+    }
+
+    public executeSwapQuoteOrThrowAsync = async (quote: SwapQuote, opts: Partial<SwapQuoteExecutionOpts>): Promise<string> => {
+
+    }
+}