From 87ffa5d7ab19d2288bf68131a7e7ec77578c564c Mon Sep 17 00:00:00 2001 From: zkao Date: Tue, 4 Dec 2018 13:21:46 -0800 Subject: Token_orderbook_snapshots for Ddex and Paradex(#1354) * Implements the TokenOrderbookSnapshot Table * Scripts, Data Sources and Entities to pull Ddex and Paradex API data. --- .../src/scripts/pull_ddex_orderbook_snapshots.ts | 55 ++++++++++++++ .../scripts/pull_paradex_orderbook_snapshots.ts | 87 ++++++++++++++++++++++ 2 files changed, 142 insertions(+) create mode 100644 packages/pipeline/src/scripts/pull_ddex_orderbook_snapshots.ts create mode 100644 packages/pipeline/src/scripts/pull_paradex_orderbook_snapshots.ts (limited to 'packages/pipeline/src/scripts') diff --git a/packages/pipeline/src/scripts/pull_ddex_orderbook_snapshots.ts b/packages/pipeline/src/scripts/pull_ddex_orderbook_snapshots.ts new file mode 100644 index 000000000..b02468e9b --- /dev/null +++ b/packages/pipeline/src/scripts/pull_ddex_orderbook_snapshots.ts @@ -0,0 +1,55 @@ +import { logUtils } from '@0x/utils'; +import * as R from 'ramda'; +import { Connection, ConnectionOptions, createConnection } from 'typeorm'; + +import { DDEX_SOURCE, DdexMarket, DdexSource } from '../data_sources/ddex'; +import { TokenOrderbookSnapshot as TokenOrder } from '../entities'; +import * as ormConfig from '../ormconfig'; +import { parseDdexOrders } from '../parsers/ddex_orders'; +import { handleError } from '../utils'; + +// Number of orders to save at once. +const BATCH_SAVE_SIZE = 1000; + +// Number of markets to retrieve orderbooks for at once. +const MARKET_ORDERBOOK_REQUEST_BATCH_SIZE = 50; + +// Delay between market orderbook requests. +const MILLISEC_MARKET_ORDERBOOK_REQUEST_DELAY = 5000; + +let connection: Connection; + +(async () => { + connection = await createConnection(ormConfig as ConnectionOptions); + const ddexSource = new DdexSource(); + const markets = await ddexSource.getActiveMarketsAsync(); + for (const marketsChunk of R.splitEvery(MARKET_ORDERBOOK_REQUEST_BATCH_SIZE, markets)) { + await Promise.all( + marketsChunk.map(async (market: DdexMarket) => getAndSaveMarketOrderbook(ddexSource, market)), + ); + await new Promise(resolve => setTimeout(resolve, MILLISEC_MARKET_ORDERBOOK_REQUEST_DELAY)); + } + process.exit(0); +})().catch(handleError); + +/** + * Retrieve orderbook from Ddex API for a given market. Parse orders and insert + * them into our database. + * @param ddexSource Data source which can query Ddex API. + * @param market Object from Ddex API containing market data. + */ +async function getAndSaveMarketOrderbook(ddexSource: DdexSource, market: DdexMarket): Promise { + const orderBook = await ddexSource.getMarketOrderbookAsync(market.id); + const observedTimestamp = Date.now(); + + logUtils.log(`${market.id}: Parsing orders.`); + const orders = parseDdexOrders(orderBook, market, observedTimestamp, DDEX_SOURCE); + + if (orders.length > 0) { + logUtils.log(`${market.id}: Saving ${orders.length} orders.`); + const TokenOrderRepository = connection.getRepository(TokenOrder); + await TokenOrderRepository.save(orders, { chunk: Math.ceil(orders.length / BATCH_SAVE_SIZE) }); + } else { + logUtils.log(`${market.id}: 0 orders to save.`); + } +} diff --git a/packages/pipeline/src/scripts/pull_paradex_orderbook_snapshots.ts b/packages/pipeline/src/scripts/pull_paradex_orderbook_snapshots.ts new file mode 100644 index 000000000..bae1fbede --- /dev/null +++ b/packages/pipeline/src/scripts/pull_paradex_orderbook_snapshots.ts @@ -0,0 +1,87 @@ +import { logUtils } from '@0x/utils'; +import { Connection, ConnectionOptions, createConnection } from 'typeorm'; + +import { + PARADEX_SOURCE, + ParadexActiveMarketsResponse, + ParadexMarket, + ParadexSource, + ParadexTokenInfoResponse, +} from '../data_sources/paradex'; +import { TokenOrderbookSnapshot as TokenOrder } from '../entities'; +import * as ormConfig from '../ormconfig'; +import { parseParadexOrders } from '../parsers/paradex_orders'; +import { handleError } from '../utils'; + +// Number of orders to save at once. +const BATCH_SAVE_SIZE = 1000; + +let connection: Connection; + +(async () => { + connection = await createConnection(ormConfig as ConnectionOptions); + const apiKey = process.env.PARADEX_DATA_PIPELINE_API_KEY; + if (apiKey === undefined) { + throw new Error('Missing required env var: PARADEX_DATA_PIPELINE_API_KEY'); + } + const paradexSource = new ParadexSource(apiKey); + const markets = await paradexSource.getActiveMarketsAsync(); + const tokenInfoResponse = await paradexSource.getTokenInfoAsync(); + const extendedMarkets = addTokenAddresses(markets, tokenInfoResponse); + await Promise.all( + extendedMarkets.map(async (market: ParadexMarket) => getAndSaveMarketOrderbook(paradexSource, market)), + ); + process.exit(0); +})().catch(handleError); + +/** + * Extend the default ParadexMarket objects with token addresses. + * @param markets An array of ParadexMarket objects. + * @param tokenInfoResponse An array of ParadexTokenInfo containing the addresses. + */ +function addTokenAddresses( + markets: ParadexActiveMarketsResponse, + tokenInfoResponse: ParadexTokenInfoResponse, +): ParadexMarket[] { + const symbolAddressMapping = new Map(); + tokenInfoResponse.forEach(tokenInfo => symbolAddressMapping.set(tokenInfo.symbol, tokenInfo.address)); + + markets.forEach((market: ParadexMarket) => { + if (symbolAddressMapping.has(market.baseToken)) { + market.baseTokenAddress = symbolAddressMapping.get(market.baseToken); + } else { + market.quoteTokenAddress = ''; + logUtils.warn(`${market.baseToken}: No address found.`); + } + + if (symbolAddressMapping.has(market.quoteToken)) { + market.quoteTokenAddress = symbolAddressMapping.get(market.quoteToken); + } else { + market.quoteTokenAddress = ''; + logUtils.warn(`${market.quoteToken}: No address found.`); + } + }); + return markets; +} + +/** + * Retrieve orderbook from Paradex API for a given market. Parse orders and insert + * them into our database. + * @param paradexSource Data source which can query the Paradex API. + * @param market Object from the Paradex API with information about the market in question. + */ +async function getAndSaveMarketOrderbook(paradexSource: ParadexSource, market: ParadexMarket): Promise { + const paradexOrderbookResponse = await paradexSource.getMarketOrderbookAsync(market.symbol); + const observedTimestamp = Date.now(); + + logUtils.log(`${market.symbol}: Parsing orders.`); + const orders = parseParadexOrders(paradexOrderbookResponse, market, observedTimestamp, PARADEX_SOURCE); + + if (orders.length > 0) { + logUtils.log(`${market.symbol}: Saving ${orders.length} orders.`); + const tokenOrderRepository = connection.getRepository(TokenOrder); + await tokenOrderRepository.save(orders, { chunk: Math.ceil(orders.length / BATCH_SAVE_SIZE) }); + } else { + logUtils.log(`${market.symbol}: 0 orders to save.`); + } +} -- cgit v1.2.3