@fin.cx/opendata
Version:
A comprehensive TypeScript library for accessing business data and real-time financial information. Features include German company data management with MongoDB integration, JSONL bulk processing, automated Handelsregister interactions, and real-time stoc
139 lines • 12.6 kB
JavaScript
import * as plugins from '../../plugins.js';
export class YahooFinanceProvider {
constructor(config) {
this.config = config;
this.name = 'Yahoo Finance';
this.priority = 100;
this.requiresAuth = false;
this.rateLimit = {
requestsPerMinute: 100, // Conservative estimate
requestsPerDay: undefined
};
this.logger = console;
this.baseUrl = 'https://query1.finance.yahoo.com';
this.userAgent = 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36';
}
async fetchPrice(request) {
try {
const url = `${this.baseUrl}/v8/finance/chart/${request.ticker}`;
const response = await plugins.smartrequest.getJson(url, {
headers: {
'User-Agent': this.userAgent
},
timeout: this.config?.timeout || 10000
});
const responseData = response.body;
if (!responseData?.chart?.result?.[0]) {
throw new Error(`No data found for ticker ${request.ticker}`);
}
const data = responseData.chart.result[0];
const meta = data.meta;
if (!meta.regularMarketPrice) {
throw new Error(`No price data available for ${request.ticker}`);
}
const stockPrice = {
ticker: request.ticker.toUpperCase(),
price: meta.regularMarketPrice,
currency: meta.currency || 'USD',
change: meta.regularMarketPrice - meta.previousClose,
changePercent: ((meta.regularMarketPrice - meta.previousClose) / meta.previousClose) * 100,
previousClose: meta.previousClose,
timestamp: new Date(meta.regularMarketTime * 1000),
provider: this.name,
marketState: this.determineMarketState(meta),
exchange: meta.exchange,
exchangeName: meta.exchangeName
};
return stockPrice;
}
catch (error) {
console.error(`Failed to fetch price for ${request.ticker}:`, error);
throw new Error(`Yahoo Finance: Failed to fetch price for ${request.ticker}: ${error.message}`);
}
}
async fetchPrices(request) {
try {
const symbols = request.tickers.join(',');
const url = `${this.baseUrl}/v8/finance/spark?symbols=${symbols}&range=1d&interval=5m`;
const response = await plugins.smartrequest.getJson(url, {
headers: {
'User-Agent': this.userAgent
},
timeout: this.config?.timeout || 15000
});
const responseData = response.body;
const prices = [];
for (const [ticker, data] of Object.entries(responseData)) {
if (!data || typeof data !== 'object')
continue;
const sparkData = data;
if (!sparkData.previousClose || !sparkData.close?.length) {
console.warn(`Incomplete data for ${ticker}, skipping`);
continue;
}
const currentPrice = sparkData.close[sparkData.close.length - 1];
const timestamp = sparkData.timestamp?.[sparkData.timestamp.length - 1];
prices.push({
ticker: ticker.toUpperCase(),
price: currentPrice,
currency: sparkData.currency || 'USD',
change: currentPrice - sparkData.previousClose,
changePercent: ((currentPrice - sparkData.previousClose) / sparkData.previousClose) * 100,
previousClose: sparkData.previousClose,
timestamp: timestamp ? new Date(timestamp * 1000) : new Date(),
provider: this.name,
marketState: sparkData.marketState || 'REGULAR',
exchange: sparkData.exchange,
exchangeName: sparkData.exchangeName
});
}
if (prices.length === 0) {
throw new Error('No valid price data received from batch request');
}
return prices;
}
catch (error) {
console.error(`Failed to fetch batch prices:`, error);
throw new Error(`Yahoo Finance: Failed to fetch batch prices: ${error.message}`);
}
}
async isAvailable() {
try {
// Test with a well-known ticker
await this.fetchPrice({ ticker: 'AAPL' });
return true;
}
catch (error) {
console.warn('Yahoo Finance provider is not available:', error);
return false;
}
}
supportsMarket(market) {
// Yahoo Finance supports most major markets
const supportedMarkets = ['US', 'UK', 'DE', 'FR', 'JP', 'CN', 'HK', 'AU', 'CA'];
return supportedMarkets.includes(market.toUpperCase());
}
supportsTicker(ticker) {
// Basic validation - Yahoo supports most tickers
return /^[A-Z0-9\.\-]{1,10}$/.test(ticker.toUpperCase());
}
determineMarketState(meta) {
const marketState = meta.marketState?.toUpperCase();
switch (marketState) {
case 'PRE':
return 'PRE';
case 'POST':
return 'POST';
case 'REGULAR':
return 'REGULAR';
default:
// Check if market is currently open based on timestamps
const now = Date.now() / 1000;
const regularMarketTime = meta.regularMarketTime;
const timeDiff = now - regularMarketTime;
// If last update was more than 1 hour ago, market is likely closed
return timeDiff > 3600 ? 'CLOSED' : 'REGULAR';
}
}
}
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