better-rss

Better RSS is specialized library for rss feeds. It emits you updates on new items in a feed and fetches og images if no images are provided in feed.

Installation

Go to your node project and run npm install better-rss

Usage

Get updates about new items

const betterRSS = require('./main');
const rss = new betterRSS({ updateInterval: 120000 });

rss.feeds().add('https://some-url.to/my/rss/feed.xml');

rss.on('newItem', (item, feed) => {
    // do your stuff
});

Fetch a feed directly

const betterRSS = require('./main');
const rss = new betterRSS({ updateInterval: 120000 });

rss.getRSS('http://myrss.com/rss.xml')
    .then(data => console.log(data));

Documentation

Class new betterRSS(options)

• options | object | An object that will be given in the constructor
  • feeds | array | An array with strings of your rss feeds
  • updateInterval | number | A number that specify the interval of update requests in milliseconds
  • autoUpdate | bool | This boolean defines whether automatic updates should be performed
  • extraImages | bool | This boolean defines if the library should use og images if no default thumbnail is provided
  • cacheImages | bool | This boolean defines if the library should cache the image urls for og images for already fetched items
  • itemLimit | number | A number that specify a limit how many items in a feed should be processed

Methods

getRSS(url)

• url | string | The url you want to get the rss feed from
• returns: Promise

feeds()

• add(url) | Add a feed to the list
  • url | string | The url to the rss feed
  • returns: boolean
    • true | Successful added
    • false | Already in feeds
• get(feed) | Get a feed from the list with data
  • feed | string/number | Define the feed that you want. (can be index in list or url itself)
  • returns: Array
• getAll() | Get all feeds with data
  • returns: Object
• list(parsed) | Get a list with all feed urls
  • parsed | bool | Define if you want to get an array with only strings or an array with parsed url objects
    • returns: Array
• remove(feed) | Remove a feed from the list
  • feed | string | The url to the rss feed
    • returns: boolean
      • true | Successful removed
      • false | Not found
• has(url) | Check if a feed is in the list
  • url | string | The url to the rss feed
    • returns: boolean
      • true | Found
      • false | Not found

updater()

• start() | Start the auto updater
• stop() | Stop the auto updater
  • returns:
    • true | Successful stopped
    • false | Cant stopped because auto updater not running
• update() | Update all rss feeds now

on(event, callback)

• event | string | The event that you want to listen on
• callback([args]) | function | The callback function that will be triggered on an event

updateFeeds()

Updates all feeds. Please not use this. Use updater().update() instead.

filter(func)

• func(item, feed) | function | A function / lambda expression that should return true or false. This is a filter function that will executed every time before a newItem event is emitting.

Events

• updating | Will be triggered when the auto updater updates all rss feeds
  • No callback args
• error | Triggered when an error occurs
  • err | object | Error object in callback arg
• newItem | Executed if a new item in a feed is available
  • item | object | RSS item object
  • feed | object | RSS feed object

Default RSS Object

let rss = {
    feed: {
        title: null,
        link: null,
        url: null,
        author: null,
        description: null,
        image: null,
        _source: null
    },
    items: [
        {
            title: null,
            pubDate: null,
            link: null,
            guid: null,
            author: null,
            thumbnail: null,
            description: null,
            content: null,
            categories: []
        }
    ]
}