Feature/add data source eod historical data (#974)
* Add EOD Historical Data as a data source * Update changelogpull/976/head^2
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import { LookupItem } from '@ghostfolio/api/app/symbol/interfaces/lookup-item.interface';
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import { ConfigurationService } from '@ghostfolio/api/services/configuration.service';
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import { DataProviderInterface } from '@ghostfolio/api/services/data-provider/interfaces/data-provider.interface';
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import {
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IDataProviderHistoricalResponse,
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IDataProviderResponse
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} from '@ghostfolio/api/services/interfaces/interfaces';
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import { SymbolProfileService } from '@ghostfolio/api/services/symbol-profile.service';
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import { DATE_FORMAT } from '@ghostfolio/common/helper';
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import { Granularity } from '@ghostfolio/common/types';
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import { Injectable, Logger } from '@nestjs/common';
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import { DataSource, SymbolProfile } from '@prisma/client';
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import bent from 'bent';
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import { format } from 'date-fns';
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@Injectable()
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export class EodHistoricalDataService implements DataProviderInterface {
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private apiKey: string;
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private readonly URL = 'https://eodhistoricaldata.com/api';
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public constructor(
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private readonly configurationService: ConfigurationService,
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private readonly symbolProfileService: SymbolProfileService
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) {
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this.apiKey = this.configurationService.get('EOD_HISTORICAL_DATA_API_KEY');
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}
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public canHandle(symbol: string) {
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return true;
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}
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public async getAssetProfile(
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aSymbol: string
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): Promise<Partial<SymbolProfile>> {
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return {
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dataSource: this.getName()
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};
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}
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public async getHistorical(
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aSymbol: string,
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aGranularity: Granularity = 'day',
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from: Date,
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to: Date
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): Promise<{
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[symbol: string]: { [date: string]: IDataProviderHistoricalResponse };
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}> {
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try {
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const get = bent(
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`${this.URL}/eod/${aSymbol}?api_token=${
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this.apiKey
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}&fmt=json&from=${format(from, DATE_FORMAT)}&to=${format(
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to,
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DATE_FORMAT
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)}&period={aGranularity}`,
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'GET',
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'json',
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200
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);
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const response = await get();
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return response.reduce(
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(result, historicalItem, index, array) => {
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result[aSymbol][historicalItem.date] = {
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marketPrice: historicalItem.close,
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performance: historicalItem.open - historicalItem.close
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};
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return result;
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},
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{ [aSymbol]: {} }
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);
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} catch (error) {
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Logger.error(error, 'EodHistoricalDataService');
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}
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return {};
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}
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public getName(): DataSource {
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return DataSource.EOD_HISTORICAL_DATA;
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}
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public async getQuotes(
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aSymbols: string[]
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): Promise<{ [symbol: string]: IDataProviderResponse }> {
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if (aSymbols.length <= 0) {
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return {};
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}
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try {
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const get = bent(
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`${this.URL}/real-time/${aSymbols[0]}?api_token=${
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this.apiKey
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}&fmt=json&s=${aSymbols.join(',')}`,
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'GET',
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'json',
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200
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);
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const [response, symbolProfiles] = await Promise.all([
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get(),
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this.symbolProfileService.getSymbolProfiles(
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aSymbols.map((symbol) => {
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return {
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symbol,
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dataSource: DataSource.EOD_HISTORICAL_DATA
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};
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})
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)
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]);
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const quotes = aSymbols.length === 1 ? [response] : response;
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return quotes.reduce((result, item, index, array) => {
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result[item.code] = {
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currency: symbolProfiles.find((symbolProfile) => {
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return symbolProfile.symbol === item.code;
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})?.currency,
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dataSource: DataSource.EOD_HISTORICAL_DATA,
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marketPrice: item.close,
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marketState: 'delayed'
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};
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return result;
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}, {});
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} catch (error) {
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Logger.error(error, 'EodHistoricalDataService');
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}
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return {};
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}
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public async search(aQuery: string): Promise<{ items: LookupItem[] }> {
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return { items: [] };
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}
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}
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@ -0,0 +1,2 @@
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-- AlterEnum
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ALTER TYPE "DataSource" ADD VALUE 'EOD_HISTORICAL_DATA';
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