Feedr

Use feedr to fetch the data from a remote url, respect its caching, and parse its data. Despite its name, it's not just for feed data but also for all data that you can feed into it (including binary data).

Install

npm

Install: npm install --save feedr
Require: require('feedr')

Editions

This package is published with the following editions:

feedr aliases feedr/source/index.js
feedr/source/index.js is esnext source code with require for modules

Environments older than Node.js v8 may need Babel's Polyfill or something similar.

Usage

// Create a new feedr instance
const feedr = require('feedr').create({/* optional configuration */})

// Prepare our feeds that we want read
const feeds = {
	someAtomFeed: 'https://github.com/bevry/feedr/commits/for-testing.atom'
	someJsonFile: 'https://raw.githubusercontent.com/bevry/feedr/for-testing/package.json'
}

// Read a single feed
feedr.readFeed(feeds.someAtomFeed, {/* optional configuration */}, function (err, data, headers) {
	console.log(err, data, headers)
})

// Read all the feeds together
feedr.readFeeds(feeds, {/* optional configuration */}, function (err, result) {
	console.log(err, result.someAtomFeed, result.someJsonFile)
})

Configuration

Feed configuration defaults / global configuration properties are:

log defaults to null, log function to use
tmpPath defaults to system tmp path, the tempory path to cache our feedr results to
cache defaults to one day 1000*60*60*24, available values:
- Number prefers to use the cache when it is within the range of the number in milliseconds
- true prefers to use the cache when the response headers indicate that the cache is still valid
- "preferred" will always use the cache if the cache exists
- false will never use the cache
xml2jsOptions defaults to null, the options to send to xml2js
requestOptions defaults to null, the options to send to request

Feed configuration properties are:

url required, the url to fetch
hash defaults to hash of the url, the hashed url for caching
name defaults to hash, the name of the feed for use in debugging
path defaults to tmp feed path, the path to save the file to
parse defaults to true, whether or not we should attempt to parse the response data, supported values are xml, json, cson, yaml, string, raw/false. If true will try all the available parsers. Can also be a function with the signature ({response, data, feed, feedr}, next(err, data))
check defaults to true, whether or not we should check the response data for custom error messages. Can also be a function with the signature ({response, data, feed, feedr}, next(err))
xml2jsOptions defaults to global value, the options to send to xml2js
requestOptions defaults to global value, the options to send to request