pxl-mongodb

Access counting for any Express-served url - e.g. for a tracking pixel in emails

Overview

pxl-mongodb is an extension of the pxl library that adds a persistence layer for mongoDB.

Please check out the README of the pxl library and then come back for instructions on installing and using this library.

Installation

This is a module for node.js and is installed via npm:

npm install pxl-mongodb --save

pxl is installed automatically with pxl-mongodb.

Usage

Everything described in the README of the pxl library is relevant for pxl-mongodb as well. The only difference is that this library includes a persistence layer for mongoDB and needs to be initialized differently.

let PxlMongodb = require('pxl-mongodb')

let pxl = new PxlMongodb({

    // Options described for the pxl lib like queryParam and logPxlFailed can be passed here as well
    
    // Additional options are:
    collectionPxls: 'pxls', // Name of the collection to store pxl documents for access tracking
    collectionLinks: 'links', // Name of the collection to store shortened links
    
    alwaysShortenWithNewLinkId: false // Set to true if you need a different linkId each time you shorten a link - even if the link was shortened before
    
    // Omit the options to use the default values equal to the example values above
    
})

Before you use any functions like pxl.createdPxl(...) you need to connect to the database:

pxl.connect('mongodb://localhost:27017/test', {}) // Passed values are the defaults
    .then((collections) => {
        
        // Returns the collections to allow creating additional indexes etc.
        
        collections.pxls.stats().then(console.dir)
        collections.lists.stats().then(console.dir)
        
    })

• First parameter uri: The mongoDB connection string that is used to connect to the database using the mongodb library
• Second parameter connectionOptions: Additional options to configure the connection. For details see the mongodb API docs.
• Returns a promise with the collection objects as shown above. For details see the mongodb API docs.

And finally:

pxl.disconnect()
    .then(() => {
        console.log('Database connection is closed')
    })

Contributing

To set up your development environment for pxl-mongodb:

1. Clone this repo to your desktop,
2. in the shell cd to the main folder,
3. hit npm install,
4. hit npm install gulp -g if you haven't installed gulp globally yet, and
5. run gulp dev. (Or run node ./node_modules/.bin/gulp dev if you don't want to install gulp globally.)

gulp dev watches all source files and if you save some changes it will lint the code and execute all tests. The test coverage report can be viewed from ./coverage/lcov-report/index.html.

If you want to debug a test you should use gulp test-without-coverage to run all tests without obscuring the code by the test coverage instrumentation.

Change History

• v0.0.7 (2020-09-17)
  • Storing links with writeConcern: { w: 'majority' }
  • Updated dependencies
• v0.0.6 (2020-06-06)
  • Updated dependencies to fix security vulnerabilities
  • Added node v8 and v10 to ci build
  • Storing pixels with writeConcern: { w: 'majority' }
• v0.0.5 (2018-04-12)
  • Using latest pxl version which debounces pxl logging when a user double clicks
  • Breaking Change: If you call .logPxl(...) directly instead of using the trackPxl middleware then .logPxl(...) calls which get debounced resolve to undefined.
• v0.0.4 (2016-10-08)
  • Fixed unshorting links
  • Added index to speed up checking for already shortened links
• v0.0.3 (2016-10-08)
  • Per default, the same links will (almost always) get the same linkId when shortened
  • Wiring to support referenced pxls
  • Upgraded to [email protected]
• v0.0.2 (2016-10-06)
  • Upgraded to [email protected]
• v0.0.1 (2016-10-06)
  • Initial version

License (ISC)

In case you never heard about the ISC license it is functionally equivalent to the MIT license.

See the LICENSE file for details.