stock-info

The Stock Info library retrieves current stock information from Yahoo Finance API.

Installation

Using npm:

npm install --save stock-info

Usage

import si from "stock-info";
// or
const si = require("stock-info");

getSingleStockInfo

Retrieves information about a single stock symbol

Input

A string that represents a stock symbol

Output

A Promise that resolves to a stock objects

Example

const si = require("stock-info");
si.getSingleStockInfo("GOOG").then(console.log);
//Prints the stock object to console

getStocksInfo

Retrieves information about a list of stock symbols

Note: This function will be removed in a future version. Just make your own list of promises using getSingleStockInfo.

Input

An array of strings where each element is a stock symbol.

Output

A Promise that resolves to an array of stock objects

Example

const si = require("stock-info");
const stocks = ["AMZN", "NFLIX"];
si.getStocksInfo(stocks).then(console.log);
//Prints an array of stock objects to console

Stock Object

The stock object has the following interface:

interface Stock {
  maxAge: number;
  preMarketChangePercent: NumberWrapper;
  preMarketChange: NumberWrapper;
  preMarketTime: number;
  preMarketPrice: NumberWrapper;
  preMarketSource: string;
  postMarketChange: UnknownEmptyObject;
  postMarketPrice: UnknownEmptyObject;
  regularMarketChangePercent: NumberWrapper;
  regularMarketChange: NumberWrapper;
  regularMarketTime: number;
  priceHint: NumberWrapperLongFormat;
  regularMarketPrice: NumberWrapper;
  regularMarketDayHigh: NumberWrapper;
  regularMarketDayLow: NumberWrapper;
  regularMarketVolume: NumberWrapperLongFormat;
  averageDailyVolume10Day: UnknownEmptyObject;
  averageDailyVolume3Month: UnknownEmptyObject;
  regularMarketPreviousClose: NumberWrapper;
  regularMarketSource: string;
  regularMarketOpen: NumberWrapper;
  strikePrice: UnknownEmptyObject;
  openInterest: UnknownEmptyObject;
  exchange: string;
  exchangeName: string;
  exchangeDataDelayedBy: number;
  marketState: string;
  quoteType: string;
  symbol: string;
  underlyingSymbol: null;
  shortName: string;
  longName: string;
  currency: string;
  quoteSourceName: string;
  currencySymbol: string;
  fromCurrency: null;
  toCurrency: null;
  lastMarket: null;
  volume24Hr: UnknownEmptyObject;
  volumeAllCurrencies: UnknownEmptyObject;
  circulatingSupply: UnknownEmptyObject;
  marketCap: NumberWrapperLongFormat;
}

interface UnknownEmptyObject {}

interface NumberWrapperLongFormat {
  raw: number;
  fmt: string;
  longFmt: string;
}