Demo: Getting Started with Polygon.io + JavaScript

In this tutorial series, you will learn how to access real-time and historical stock market data using Polygon.io's APIs and the JavaScript programming language. Polygon.io offers a financial data platform that provides market data for stocks, options, indices, forex, and crypto. You can access this data programmatically using JavaScript and Polygon.io's official client library. The tutorial will cover how to authenticate with an API key, install the client library, and call functions to access various market data. The video also includes demo scripts that shows how to get daily aggregate bars for a particular stock, last trade and quotes, and market-wide snapshots. By the end of the tutorial, you will be able to retrieve stock market data from Polygon.io using JavaScript. Links: - https://polygon.io/ - https://polygon.io/docs/stocks/getting-started - https://github.com/polygon-io/client-js 0:00 - Intro 0:37 - Stocks API Documentation 1:03 - JavaScript client library for the Polygon.io 1:31 - Install client library 1:45 - Demo: Daily Aggregate Bars 2:20 - Get a Polygon.io API key 3:16 - Demo: Last Trade 3:35 - Demo: Last Quote 3:53 - Demo: Market-wide Snapshot