Yahoo Finance API via RapidAPI
Overview
This program loads comma-separated stock symbols from a file named symbols.txt and then queries the Yahoo Finance API using a RapidAPI endpoint. It retrieves prices for every 60 minutes on a max time window.
Prerequisites
Node.js
https://nodejs.org/en/download
RapidAPI API key
https://rapidapi.com/auth/sign-up
Program
1const unirest = require('unirest');
2const fs = require('fs');
3
4// Function to add a delay
5function delay(time) {
6 return new Promise((resolve) => setTimeout(resolve, time));
7}
8
9fs.readFile('symbols.txt', 'utf8', async (err, data) => {
10 if (err) throw err;
11 const symbols = data.split(",");
12 for (let symbol of symbols) {
13 const req = unirest('GET', 'https://apidojo-yahoo-finance-v1.p.rapidapi.com/stock/v2/get-chart');
14 req.query({
15 interval: '60m',
16 symbol: symbol,
17 range: 'max',
18 region: 'US'
19 });
20
21 req.headers({
22 'X-RapidAPI-Key': '',
23 'X-RapidAPI-Host': 'apidojo-yahoo-finance-v1.p.rapidapi.com'
24 });
25
26 req.end(function (res) {
27 if (res.error) throw new Error(res.error);
28
29 fs.writeFile(`data/${symbol}.json`, JSON.stringify(res.body, null, 2), err => {
30 if (err) throw err;
31 console.log(`Saved data for ${symbol}`);
32 });
33 });
34
35 // Wait for 10 seconds before the next API call
36 await delay(10000);
37 }
38});