Real-Time Yahoo Finance Stock data.
This module opens a Websocket connection with Yahoo for reliable, fast, and lightweight market data.
const StockSocket = require("stocksocket"); StockSocket.addTicker("TSLA", stockPriceChanged); function stockPriceChanged(data) { //Choose what to do with your data as it comes in. console.log(data); }
This is a Node.js module available through the npm registry.
If this is a brand new project, make sure to create a package.json first with
the npm init command.
Installation is done using the
npm install command:
$ npm install stocksocket
- Yahoo Finance uses Websockets to transfer stock data when you open their page on your browser.
- This module leverages that functionality by opening its own direct WebSocket connection with Yahoo (skipping the need for the browser in the process).
- As a result, this module is far more lightweight and quick than previous versions of this module (which used Puppeteer and inefficient web-scraping).
{
id: 'TSLA',
price: 610.0977172851562,
time: '1623352065000',
exchange: 'NMS',
quoteType: 'EQUITY',
marketHours: 'PRE_MARKET',
changePercent: 1.8901244401931763,
change: 11.31768798828125,
priceHint: '2'
}
{
id: 'TSLA',
price: 610.0977172851562,
time: '1623352065000',
exchange: 'NMS',
quoteType: 'EQUITY',
marketHours: 'REGULAR_MARKET',
changePercent: 1.8901244401931763,
dayVolume: '21090676',
change: 11.31768798828125,
priceHint: '2'
}
{
id: 'TSLA',
price: 610.0977172851562,
time: '1623352065000',
exchange: 'NMS',
quoteType: 'EQUITY',
marketHours: 'POST_MARKET',
changePercent: 1.8901244401931763,
change: 11.31768798828125,
priceHint: '2'
}
{
id: 'ETH-USD',
price: 2465.013916015625,
time: '1623352142000',
currency: 'USD',
exchange: 'CCC',
quoteType: 'CRYPTOCURRENCY',
marketHours: 'REGULAR_MARKET',
changePercent: -4.241476535797119,
dayVolume: '29413464064',
dayHigh: 2615.832763671875,
dayLow: 2463.379150390625,
change: -109.18408203125,
shortName: 'Ethereum USD',
lastSize: '29413464064',
priceHint: '2',
vol_24hr: '29413464064',
volAllCurrencies: '29413464064',
fromcurrency: 'ETH',
lastMarket: 'CoinMarketCap',
circulatingSupply: 116236768,
marketcap: 286525260000
}
Start data stream for a specific ticker
var stockticker = "TSLA"; StockSocket.addTicker(stockticker, stockPriceChanged); function stockPriceChanged(data) { console.log(data); }
stockticker (type: String)
String object containing a stock ticker to be added.
callback (type: Function)
Callback Function that receives each price update
Start data stream for an array of tickers
var stocktickers = ["TSLA", "NNDM", "AAPL", "MARA"]; StockSocket.addTickers(stocktickers, stockPriceChanged); function stockPriceChanged(data) { console.log(data); }
stocktickers (type: Array)
Array of string objects containing the stock tickers
callback (type: Function)
Callback Function that receives each price update
Stop data stream for a specific ticker.
var stockticker = "TSLA"; StockSocket.removeTicker(stockticker);
stockticker (type: String)
String object containing a stock ticker to be added.
Stop data stream for various tickers
var stocktickers = ["TSLA", "NNDM", "AAPL", "MARA"]; StockSocket.removeTickers(stocktickers);
stocktickers (type: Array)
Array of string objects containing the stock tickers to be removed.
Stop data stream for all tickers
StockSocket.removeAllTickers();