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-rw-r--r--packages/asset-buyer/src/asset_buyer.ts12
-rw-r--r--packages/asset-buyer/src/constants.ts2
-rw-r--r--packages/asset-buyer/src/order_providers/basic_order_provider.ts9
-rw-r--r--packages/asset-buyer/src/order_providers/standard_relayer_api_order_provider.ts35
-rw-r--r--packages/asset-buyer/src/types.ts5
-rw-r--r--packages/asset-buyer/src/utils/assert.ts1
6 files changed, 54 insertions, 10 deletions
diff --git a/packages/asset-buyer/src/asset_buyer.ts b/packages/asset-buyer/src/asset_buyer.ts
index 34e2d9639..2bc80ac12 100644
--- a/packages/asset-buyer/src/asset_buyer.ts
+++ b/packages/asset-buyer/src/asset_buyer.ts
@@ -77,7 +77,8 @@ export class AssetBuyer {
): AssetBuyer {
assert.isWeb3Provider('provider', provider);
assert.isWebUri('sraApiUrl', sraApiUrl);
- const orderProvider = new StandardRelayerAPIOrderProvider(sraApiUrl);
+ const networkId = options.networkId || constants.DEFAULT_ASSET_BUYER_OPTS.networkId;
+ const orderProvider = new StandardRelayerAPIOrderProvider(sraApiUrl, networkId);
const assetBuyer = new AssetBuyer(provider, orderProvider, options);
return assetBuyer;
}
@@ -241,6 +242,15 @@ export class AssetBuyer {
}
}
/**
+ * Get the asset data of all assets that are purchaseable with ether token (wETH) in the order provider passed in at init.
+ *
+ * @return An array of asset data strings that can be purchased using wETH.
+ */
+ public async getAvailableAssetDatasAsync(): Promise<string[]> {
+ const etherTokenAssetData = this._getEtherTokenAssetDataOrThrow();
+ return this.orderProvider.getAvailableMakerAssetDatasAsync(etherTokenAssetData);
+ }
+ /**
* Grab orders from the map, if there is a miss or it is time to refresh, fetch and process the orders
*/
private async _getOrdersAndFillableAmountsAsync(
diff --git a/packages/asset-buyer/src/constants.ts b/packages/asset-buyer/src/constants.ts
index c912253bd..b2f025bdb 100644
--- a/packages/asset-buyer/src/constants.ts
+++ b/packages/asset-buyer/src/constants.ts
@@ -36,6 +36,6 @@ export const constants = {
DEFAULT_ASSET_BUYER_OPTS,
DEFAULT_BUY_QUOTE_EXECUTION_OPTS,
DEFAULT_BUY_QUOTE_REQUEST_OPTS,
- MAX_PER_PAGE: 10000,
+ MAX_PER_PAGE: 1000,
EMPTY_ORDERS_AND_FILLABLE_AMOUNTS,
};
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);
+ }
}
diff --git a/packages/asset-buyer/src/types.ts b/packages/asset-buyer/src/types.ts
index f15e7e934..3f1e6ff21 100644
--- a/packages/asset-buyer/src/types.ts
+++ b/packages/asset-buyer/src/types.ts
@@ -9,7 +9,6 @@ import { BigNumber } from '@0x/utils';
export interface OrderProviderRequest {
makerAssetData: string;
takerAssetData: string;
- networkId: number;
}
/**
@@ -27,10 +26,12 @@ export interface SignedOrderWithRemainingFillableMakerAssetAmount extends Signed
remainingFillableMakerAssetAmount?: BigNumber;
}
/**
- * Given an OrderProviderRequest, get an OrderProviderResponse.
+ * gerOrdersAsync: Given an OrderProviderRequest, get an OrderProviderResponse.
+ * getAvailableMakerAssetDatasAsync: Given a taker asset data string, return all availabled paired maker asset data strings.
*/
export interface OrderProvider {
getOrdersAsync: (orderProviderRequest: OrderProviderRequest) => Promise<OrderProviderResponse>;
+ getAvailableMakerAssetDatasAsync: (takerAssetData: string) => Promise<string[]>;
}
/**
diff --git a/packages/asset-buyer/src/utils/assert.ts b/packages/asset-buyer/src/utils/assert.ts
index e8cb7f763..e5bfd2d81 100644
--- a/packages/asset-buyer/src/utils/assert.ts
+++ b/packages/asset-buyer/src/utils/assert.ts
@@ -29,7 +29,6 @@ export const assert = {
isValidOrderProviderRequest(variableName: string, orderFetcherRequest: OrderProviderRequest): void {
sharedAssert.isHexString(`${variableName}.makerAssetData`, orderFetcherRequest.makerAssetData);
sharedAssert.isHexString(`${variableName}.takerAssetData`, orderFetcherRequest.takerAssetData);
- sharedAssert.isNumber(`${variableName}.networkId`, orderFetcherRequest.networkId);
},
areValidProvidedOrders(variableName: string, orders: SignedOrder[]): void {
if (orders.length === 0) {
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-02 21:08:12 +0800