From 55bbe1954b35ff0a6367f1ff820d32a32b48eff3 Mon Sep 17 00:00:00 2001 From: Alex Browne Date: Tue, 13 Nov 2018 14:05:49 -0800 Subject: Preliminary work for adding RR order book scraping --- .../src/scripts/pull_radar_relay_orders.ts | 52 ++++++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100644 packages/pipeline/src/scripts/pull_radar_relay_orders.ts diff --git a/packages/pipeline/src/scripts/pull_radar_relay_orders.ts b/packages/pipeline/src/scripts/pull_radar_relay_orders.ts new file mode 100644 index 000000000..c4d3f7095 --- /dev/null +++ b/packages/pipeline/src/scripts/pull_radar_relay_orders.ts @@ -0,0 +1,52 @@ +// tslint:disable:no-console +import { HttpClient } from '@0x/connect'; +import * as R from 'ramda'; +import 'reflect-metadata'; +import { Connection, ConnectionOptions, createConnection } from 'typeorm'; + +import { SraOrder } from '../entities'; +import * as ormConfig from '../ormconfig'; +import { parseSraOrders } from '../parsers/sra_orders'; +import { handleError } from '../utils'; + +const RADAR_RELAY_URL = 'https://api.radarrelay.com/0x/v2'; +const BATCH_SAVE_SIZE = 1000; // Number of orders to save at once. +const ORDERS_PER_PAGE = 10000; // Number of orders to get per request. + +let connection: Connection; + +(async () => { + connection = await createConnection(ormConfig as ConnectionOptions); + await getOrderbook(); + process.exit(0); +})().catch(handleError); + +async function getOrderbook(): Promise { + console.log('Getting all orders...'); + const connectClient = new HttpClient(RADAR_RELAY_URL); + const rawOrders = await connectClient.getOrdersAsync({ + perPage: ORDERS_PER_PAGE, + }); + console.log(`Got ${rawOrders.records.length} orders.`); + console.log('Parsing orders...'); + const orders = R.pipe(parseSraOrders, R.map(setSourceUrl(RADAR_RELAY_URL)))(rawOrders); + const ordersRepository = connection.getRepository(SraOrder); + // TODO(albrow): Move batch saving to a utility function to reduce + // duplicated code. + for (const ordersBatch of R.splitEvery(BATCH_SAVE_SIZE, orders)) { + await ordersRepository.save(ordersBatch); + } +} + +const sourceUrlProp = R.lensProp('sourceUrl'); + +const setSourceUrl = R.curry((sourceURL: string, order: SraOrder): SraOrder => { + return R.set(sourceUrlProp, sourceURL, order); +}); + +const firstSeenProp = R.lensProp('firstSeenTimestamp'); +const lastUpdatedProp = R.lensProp('lastUpdatedTimestamp'); + +const setFirstSeen = R.curry((sourceURL: string, order: SraOrder): SraOrder => { + return R.set(firstSeenTimestampProp, sourceURL, order); +}); -- cgit v1.2.3