Kazuma
41 lines
1.1 KiB
JavaScript
41 lines
1.1 KiB
JavaScript
import YahooFinance from 'yahoo-finance2';
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export class YahooClient {
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constructor() {
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// Instantiate the client as required by v3
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this.yf = new YahooFinance({
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suppressNotices: ['yahooSurvey'],
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});
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}
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async fetchSummary(ticker, retries = 3, backoff = 1000) {
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for (let i = 0; i < retries; i++) {
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try {
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return await this.yf.quoteSummary(ticker, {
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modules: [
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'assetProfile',
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'financialData',
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'defaultKeyStatistics',
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'price',
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'summaryDetail',
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],
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});
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} catch (error) {
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if (i === retries - 1) throw error;
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await new Promise((res) => setTimeout(res, backoff * (i + 1)));
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}
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}
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}
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// Fetches upcoming earnings dates, ex-dividend date, and dividend date for a ticker.
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// Returns null on failure so callers can skip gracefully.
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async fetchCalendarEvents(ticker) {
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try {
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const r = await this.yf.quoteSummary(ticker, { modules: ['calendarEvents'] });
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return r.calendarEvents ?? null;
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} catch {
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return null;
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}
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}
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}
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