node-listhub

A Node.js module to handle ListHub feed downloads

Installation

Via npm:

$ npm install listhub

Changelog

v1.0.1

• Minor bugfixes

older change log

Quick start

Below is the simple usage of this module. Just require the object, initialise and use it.

var lh = require('listhub')({channelId: 'channelId', username: 'username', password: 'pass'});

Below you can find more detailed usage tips and examples.

Usage

Class reference

Properties

+ gzFeedFile               The path of downloaded `gzip` file 
+ xmlFeedFile              The path of extracted `xml` file
+ channelFilesDir          The directory path where all channel files are kept

Methods

+ constructor(options)
+ checkAndGetNewFile(cb)                                                     You can manually run the feed update script with this function
+ getXml()                                                                   Returns the parsed xml as libxml Document object
+ getXmlString()                                                             Returns the string of parsed xml
+ getSingleListingJson(listingXmlElement, cb)                                Returns json object representing single Listing
+ clearFeedFiles(cb)                                                         Remove all files related to the channel (gzip, xml)
+ addStatusReportForListing(listingKey, status, url, message, timestamp, cb) Add status report for a listing
+ generateReportFile(cb)                                                     Generate final report file for previously added statuses

Creating class object

To get started with ListHub, the class object should be created with initial options. Here is an example:

var listHub = require('listhub')({channelId: 'channelId', username: 'username', password: 'pass'});

The constructor takes 1 argument (options). It is an object with some configuration parameters. The possible contents of the object are:

channelId <string>            Your ListHub channel
username <string>             The username for your ListHub account
password <string>             The password for your ListHub account
filename <string>             An optional filename to apply to saved files. If not provided, the channelId will be used
runAt <string|array>          An array containing cron-formatted strings to use for running cron jobs.
setCron <boolean>             A boolean indicating if the constructor should set up cron jobs to get ListHub files
runCronAtOnce <boolean>       Indicates if the feed should be downloaded also immediately after setup
onCronComplete <function>     Function to run at cron job completion
tmpDirectory <string>         Path to temp directory where feed files will be kept
reportFile <string | boolean> Path to reports file to save for ListHub. If not specified will be equal to '{tmpDirectory}/{channelId}/report.xml'

If no runAt is provided, the module will download and store the feed file every day at 00:00:00. If you want to specify your own schedule you can provide your time in cron format.

Example:

var listHub = require('listhub')({runAt: '00 00 07 * * *', ...});

If you want to run the script lets say several times a day, you provide an array:

var listHub = require('listhub')({runAt: ['00 00 00 * * *', '00 00 06 * * *', '00 00 12 * * *'], ...});

When the listHub is set up, you can call some methods on it like:

var xmlDoc = lh.getXml();
lh.getSingleListingJson(xmlDoc.child(1), function(err, json) {
    //handle error here
    console.log(JSON.stringify(json));
});