63 lines
3.0 KiB
TypeScript
63 lines
3.0 KiB
TypeScript
import { APIOrder, OrdersResponse } from '@0x/connect';
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import { assetDataUtils, orderHashUtils } from '@0x/order-utils';
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import { AssetProxyId, ERC721AssetData } from '@0x/types';
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import * as R from 'ramda';
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import { SraOrder } from '../../entities';
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import { bigNumbertoStringOrNull } from '../../utils';
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/**
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* Parses a raw order response from an SRA endpoint and returns an array of
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* SraOrder entities.
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* @param rawOrdersResponse A raw order response from an SRA endpoint.
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*/
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export function parseSraOrders(rawOrdersResponse: OrdersResponse): SraOrder[] {
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return R.map(_convertToEntity, rawOrdersResponse.records);
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}
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/**
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* Converts a single APIOrder into an SraOrder entity.
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* @param apiOrder A single order from the response from an SRA endpoint.
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*/
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export function _convertToEntity(apiOrder: APIOrder): SraOrder {
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// TODO(albrow): refactor out common asset data decoding code.
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const makerAssetData = assetDataUtils.decodeAssetDataOrThrow(apiOrder.order.makerAssetData);
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const makerAssetType = makerAssetData.assetProxyId === AssetProxyId.ERC20 ? 'erc20' : 'erc721';
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const takerAssetData = assetDataUtils.decodeAssetDataOrThrow(apiOrder.order.takerAssetData);
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const takerAssetType = takerAssetData.assetProxyId === AssetProxyId.ERC20 ? 'erc20' : 'erc721';
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const sraOrder = new SraOrder();
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sraOrder.exchangeAddress = apiOrder.order.exchangeAddress;
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sraOrder.orderHashHex = orderHashUtils.getOrderHashHex(apiOrder.order);
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sraOrder.makerAddress = apiOrder.order.makerAddress;
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sraOrder.takerAddress = apiOrder.order.takerAddress;
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sraOrder.feeRecipientAddress = apiOrder.order.feeRecipientAddress;
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sraOrder.senderAddress = apiOrder.order.senderAddress;
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sraOrder.makerAssetAmount = apiOrder.order.makerAssetAmount;
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sraOrder.takerAssetAmount = apiOrder.order.takerAssetAmount;
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sraOrder.makerFee = apiOrder.order.makerFee;
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sraOrder.takerFee = apiOrder.order.takerFee;
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sraOrder.expirationTimeSeconds = apiOrder.order.expirationTimeSeconds;
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sraOrder.salt = apiOrder.order.salt;
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sraOrder.signature = apiOrder.order.signature;
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sraOrder.rawMakerAssetData = apiOrder.order.makerAssetData;
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sraOrder.makerAssetType = makerAssetType;
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sraOrder.makerAssetProxyId = makerAssetData.assetProxyId;
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sraOrder.makerTokenAddress = makerAssetData.tokenAddress;
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// tslint has a false positive here. Type assertion is required.
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// tslint:disable-next-line:no-unnecessary-type-assertion
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sraOrder.makerTokenId = bigNumbertoStringOrNull((makerAssetData as ERC721AssetData).tokenId);
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sraOrder.rawTakerAssetData = apiOrder.order.takerAssetData;
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sraOrder.takerAssetType = takerAssetType;
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sraOrder.takerAssetProxyId = takerAssetData.assetProxyId;
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sraOrder.takerTokenAddress = takerAssetData.tokenAddress;
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// tslint:disable-next-line:no-unnecessary-type-assertion
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sraOrder.takerTokenId = bigNumbertoStringOrNull((takerAssetData as ERC721AssetData).tokenId);
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sraOrder.metadataJson = JSON.stringify(apiOrder.metaData);
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return sraOrder;
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}
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