multiple-url-poller

URL Poller

A fully customizable url poller and notifier

Features

• polls multiple urls
• customizable poll interval
• creates a diff between the previous and current version upon changes
• handles HTTP authentication and any other option from the request library
• emits changes and notifies using RxJS giving you lots of possibilities to fit your needs

Installation

npm install multiple-url-poller

Example

const Poller = require('multiple-url-poller').Poller;

let interval = 5 * 1000;  // time in ms
let urls = ['https://time.is/'];
let poller = new Poller({ interval, urls });
let diffs$ = poller.getDiffObservable();
let subscription = diffs$
  .map(diffs => diffs.filter(singleDiff => singleDiff.added || singleDiff.removed))
  .subscribe(diffs => console.log('New diff', diffs));

poller.start();

See it running in your browser

Contributing

If you would like to suggest a feature or report a problem please use the Issues tab on GitHub.

All pull requests are welcome! Before creating one, make sure there are no problems by running the following commands:

npm run lint
npm test

Creating unit tests for new features in your pull requests would also be splendid, although it is not required.

Author

The author of this project is Grzegorz Rozdzialik.