yahoo-stock-prices-fetch

yahoo-stock-prices-fetch

Node.js API to scrape stock prices from Yahoo Finance.

This is a fork from yahoo-stock-prices which includes 3 main differences:

• Uses fetch instead of the npm request package.
• Has support for CORS (Being the default no-cors)
• It's writen in Typescript

This 2 options together make this module compatible with React and Electron renderer.

Installation

yarn add yahoo-stock-prices-fetch

Usage

import {getCurrentData, getCurrentPrice, getHistoricalPrices} from "yahoo-stock-prices-fetch"

Usage on Electron

Set webSecurity to false.

const mainWindow = new BrowserWindow({
...
webPreferences: {
    ...
    webSecurity : false
}
});

API

getCurrentData (quote: string, corsMode: string)

Returns a promise which resolves with the current price of a stock, along with the currency of that stock.

Parameters

• quote: Quote of the stock
• corsMode (optional): ('cors'|'no-cors') Default: 'no-cors'

Example

const data = await yahooStockPrices.getCurrentData('AAPL');
console.log(data); // { currency: 'USD', price: 132.05 }

getCurrentPrice (quote: string, corsMode: string)

Returns a promise which resolves with only the current price, as a number.

Parameters

• quote: Quote of the stock
• corsMode (optional): ('cors'|'no-cors') Default: 'no-cors'

Example

const price = await yahooStockPrices.getCurrentPrice('AAPL');
console.log(price); // 132.05

For backward compatibility with earlier versions you can also provide a callback as the second parameter, in which case no promise will be returned.

yahooStockPrices.getCurrentPrice('AAPL', (err, price) => {
    console.log(price); // 132.05
});

getHistoricalPrices

Returns a promise that resolves with an array of prices for ticker symbol within dates.

Parameters

• startMonth number (integer from 0 to 11)
• startDay number (integer from 0 to 31)
• startYear number (integer - 4 digit year)
• endMonth number (integer from 0 to 11)
• endDay number (integer from 0 to 31)
• endYear number (integer)
• ticker string (stock ticker symbol)
• frequency string (1 day = "1d", 1 week = "1wk", 1 month = "1mo")
• callback function (Optional - if a callback function is provided no promise will be returned)
• corsMode (optional): ('cors'|'no-cors') Default: 'no-cors'

Return Value

Each array item contains:

date

Type: number

Timestamp in seconds since January 1, 1970 of the start of trading on the day this data is for.

open

Type: number

Opening price of stock on date.

high

Type: number

Highest price of stock on date.

low

Type: number

Lowest price of stock on date.

close

Type: number

Closing price of stock on date adjusted for splits.

volume

Type: number

Volume of stock traded on date.

adjclose

Type: number

Adjusted close price adjusted for both dividends and splits.

Example

const prices = await yahooStockPrices.getHistoricalPrices(0, 6, 2020, 0, 8, 2020, 'AAPL', '1d');
console.log(prices);
// [
//     {
//         date: 1578407400,
//         open: 74.95999908447266,
//         high: 75.2249984741211,
//         low: 74.37000274658203,
//         close: 74.59750366210938,
//         volume: 108872000,
//         adjclose: 73.95879364013672
//     },
//     {
//         date: 1578321000,
//         open: 73.44750213623047,
//         high: 74.98999786376953,
//         low: 73.1875,
//         close: 74.94999694824219,
//         volume: 118387200,
//         adjclose: 74.30826568603516
//     },
// ]

License

• Creator of the base module: Rishi Masand
• License: MIT