Part of edX code.

The event-tracking library tracks context-aware semi-structured system events. It captures and stores events with nested data structures in order to truly take advantage of schemaless data storage systems.

Key features:

• Multiple backends - define custom backends that can be used to persist your event data.
• Nested contexts - allows data to be injected into events even without having to pass around all of said data to every location where the events are emitted.
• Django integration - provides a Django app that allows context aware events to easily be captured by multi-threaded web applications.
• MongoDB integration - support writing events out to a mongo collection.

Example:

from eventtracking import tracker

tracker = tracker.get_tracker()
tracker.enter_context('outer', {'user_id': 10938})
tracker.emit('navigation.request', {'url': 'http://www.edx.org/some/path/1'})

with tracker.context({'user_id': 11111, 'session_id': '2987lkjdyoioey'}):
    tracker.emit('navigation.request', {'url': 'http://www.edx.org/some/path/2'})

tracker.emit(
    'address.create',
    {
        'name': 'foo',
        'address': {
            'postal_code': '90210',
            'country': 'United States'
        }
    }
)

Running the above example produces the following events:

{
    "name": "navigation.request",
    "timestamp": ...,
    "context": {
        "user_id": 10938
    },
    "data": {
        "url": "http://www.edx.org/some/path/1"
    }
},
{
    "name": "navigation.request",
    "timestamp": ...,
    "context": {
        "user_id": 11111,
        "session_id": "2987lkjdyoioey"
    },
    "data": {
        "url": "http://www.edx.org/some/path/2"
    }
},    
{
    "name": "address.create",
    "timestamp": ...,
    "context": {
        "user_id": 10938
    },
    "data": {
        "name": "foo",
        "address": {
            "postal_code": "90210",
            "country": "United States"
        }
    }
}

In the very near future the following features are planned:

• Dynamic event documentation and event metadata - allow event emitters to document the event types, and persist this documentation along with the events so that it can be referenced during analysis to provide context about what the event is and when it is emitted.

Latest documentation (Hosted on Read the Docs)

The code in this repository is licensed under version 3 of the AGPL unless otherwise noted.

Please see LICENSE.txt for details.

Contributions are very welcome.

Please read How To Contribute for details.

Please do not report security issues in public. Please email security@edx.org

You can discuss this code on the edx-code Google Group or in the edx-code IRC channel on Freenode.