https://github.com/barchart/marketdata-api-js

JavaScript SDK for accessing streaming market data via WebSockets
https://github.com/barchart/marketdata-api-js

barchart forex futures javascript market-data nodejs npm-package public-repository sdk stocks stream websockets

Last synced: 4 days ago
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JavaScript SDK for accessing streaming market data via WebSockets

• Host: GitHub
• URL: https://github.com/barchart/marketdata-api-js
• Owner: barchart
• License: other
• Created: 2015-02-24T20:37:32.000Z (over 9 years ago)
• Default Branch: master
• Last Pushed: 2024-10-15T17:14:03.000Z (about 1 month ago)
• Last Synced: 2024-10-16T23:54:44.027Z (about 1 month ago)
• Topics: barchart, forex, futures, javascript, market-data, nodejs, npm-package, public-repository, sdk, stocks, stream, websockets
• Language: JavaScript
• Homepage: https://barchart.github.io/marketdata-api-js/#/
• Size: 3.8 MB
• Stars: 24
• Watchers: 21
• Forks: 104
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.txt

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README

        
# @barchart/marketdata-api-js

[![AWS CodeBuild](https://codebuild.us-east-1.amazonaws.com/badges?uuid=eyJlbmNyeXB0ZWREYXRhIjoiY1VDTWRsRHkwK0NRYnJNZk95WjVEMzR3QW9EbUtTRG9yNExRSk0yVTI1MEtWWGlDOXUvQU1xTmNuTUxNd0REZ1VlZkc2WXRPMXZ2SWpOSW83UkdYc3c4PSIsIml2UGFyYW1ldGVyU3BlYyI6IjhUTXBaL1E4RW5WRGlKTjIiLCJtYXRlcmlhbFNldFNlcmlhbCI6MX0%3D&branch=master)](https://github.com/barchart/marketdata-api-js)

[![NPM](https://img.shields.io/npm/v/@barchart/marketdata-api-js)](https://www.npmjs.com/package/@barchart/marketdata-api-js)

### Overview

[Barchart](https://www.barchart.com) offers streaming market data for a wide range of asset classes which trade on exchanges around the world. Review our [market data catalog](https://www.barchart.com/solutions/data/market) for details.

**This SDK enables your applications to consume real-time market data**, as follows:

* A WebSocket connection is established between your application and Barchart's quote servers, then

* Your application requests market data for one or more symbols, then

* Your application receives a market data stream for subscribed symbols.

### Openfeed

This library receives market data using a proprietary protocol called DDF. For new development, Barchart has switched to an open-source protocol called [Openfeed](https://docs.barchart.com/openfeed/#/) to transfer market data. Consequently, this library will be marked as deprecated in the near future. You can access new SDK libraries for Openfeed [here](https://www.barchart.com/solutions/services/stream).

### Documentation

Complete documentation for this SDK can be accessed here:

* [https://barchart.github.io/marketdata-api-js/#/](https://barchart.github.io/marketdata-api-js/#/)

### Demos

Working demos are available for web browser and Node.js environments. Please refer to the [documentation](https://barchart.github.io/marketdata-api-js/#/content/quick_start?id=demos).

### Package Managers

This library has been published to NPM as [@barchart/marketdata-api-js](https://www.npmjs.com/package/@barchart/marketdata-api-js). Install as follows:

 ```sh

 npm install @barchart/marketdata-api-js -S

```

### Build

Source code is written in [ES2018](https://en.wikipedia.org/wiki/ECMAScript#9th_Edition_%E2%80%93_ECMAScript_2018). Consequently, transpilation is recommended for use in web browsers.