diff options
Diffstat (limited to 'packages/asset-buyer/src/order_providers')
-rw-r--r-- | packages/asset-buyer/src/order_providers/basic_order_provider.ts | 9 | ||||
-rw-r--r-- | packages/asset-buyer/src/order_providers/standard_relayer_api_order_provider.ts | 35 |
2 files changed, 39 insertions, 5 deletions
diff --git a/packages/asset-buyer/src/order_providers/basic_order_provider.ts b/packages/asset-buyer/src/order_providers/basic_order_provider.ts index 68406f19b..76685f27a 100644 --- a/packages/asset-buyer/src/order_providers/basic_order_provider.ts +++ b/packages/asset-buyer/src/order_providers/basic_order_provider.ts @@ -29,4 +29,13 @@ export class BasicOrderProvider implements OrderProvider { }); return { orders }; } + /** + * Given a taker asset data string, return all availabled paired maker asset data strings. + * @param takerAssetData A string representing the taker asset data. + * @return An array of asset data strings that can be purchased using takerAssetData. + */ + public async getAvailableMakerAssetDatasAsync(takerAssetData: string): Promise<string[]> { + const ordersWithTakerAssetData = _.filter(this.orders, { takerAssetData }); + return _.map(ordersWithTakerAssetData, order => order.makerAssetData); + } } diff --git a/packages/asset-buyer/src/order_providers/standard_relayer_api_order_provider.ts b/packages/asset-buyer/src/order_providers/standard_relayer_api_order_provider.ts index 41fd1fb30..c6adcfc4a 100644 --- a/packages/asset-buyer/src/order_providers/standard_relayer_api_order_provider.ts +++ b/packages/asset-buyer/src/order_providers/standard_relayer_api_order_provider.ts @@ -1,7 +1,8 @@ import { HttpClient } from '@0x/connect'; -import { APIOrder, OrderbookResponse } from '@0x/types'; +import { APIOrder, AssetPairsResponse, OrderbookResponse } from '@0x/types'; import * as _ from 'lodash'; +import { constants } from '../constants'; import { AssetBuyerError, OrderProvider, @@ -14,6 +15,7 @@ import { orderUtils } from '../utils/order_utils'; export class StandardRelayerAPIOrderProvider implements OrderProvider { public readonly apiUrl: string; + public readonly networkId: number; private readonly _sraClient: HttpClient; /** * Given an array of APIOrder objects from a standard relayer api, return an array @@ -44,12 +46,15 @@ export class StandardRelayerAPIOrderProvider implements OrderProvider { } /** * Instantiates a new StandardRelayerAPIOrderProvider instance - * @param apiUrl The standard relayer API base HTTP url you would like to source orders from. + * @param apiUrl The standard relayer API base HTTP url you would like to source orders from. + * @param networkId The ethereum network id. * @return An instance of StandardRelayerAPIOrderProvider */ - constructor(apiUrl: string) { + constructor(apiUrl: string, networkId: number) { assert.isWebUri('apiUrl', apiUrl); + assert.isNumber('networkId', networkId); this.apiUrl = apiUrl; + this.networkId = networkId; this._sraClient = new HttpClient(apiUrl); } /** @@ -59,9 +64,9 @@ export class StandardRelayerAPIOrderProvider implements OrderProvider { */ public async getOrdersAsync(orderProviderRequest: OrderProviderRequest): Promise<OrderProviderResponse> { assert.isValidOrderProviderRequest('orderProviderRequest', orderProviderRequest); - const { makerAssetData, takerAssetData, networkId } = orderProviderRequest; + const { makerAssetData, takerAssetData } = orderProviderRequest; const orderbookRequest = { baseAssetData: makerAssetData, quoteAssetData: takerAssetData }; - const requestOpts = { networkId }; + const requestOpts = { networkId: this.networkId }; let orderbook: OrderbookResponse; try { orderbook = await this._sraClient.getOrderbookAsync(orderbookRequest, requestOpts); @@ -76,4 +81,24 @@ export class StandardRelayerAPIOrderProvider implements OrderProvider { orders, }; } + /** + * Given a taker asset data string, return all availabled paired maker asset data strings. + * @param takerAssetData A string representing the taker asset data. + * @return An array of asset data strings that can be purchased using takerAssetData. + */ + public async getAvailableMakerAssetDatasAsync(takerAssetData: string): Promise<string[]> { + const requestOpts = { networkId: this.networkId, perPage: constants.MAX_PER_PAGE }; + const assetPairsRequest = { assetDataA: takerAssetData }; + const fullRequest = { + ...requestOpts, + ...assetPairsRequest, + }; + let response: AssetPairsResponse; + try { + response = await this._sraClient.getAssetPairsAsync(fullRequest); + } catch (err) { + throw new Error(AssetBuyerError.StandardRelayerApiError); + } + return _.map(response.records, item => item.assetDataB.assetData); + } } |