Callbacks with Event Tracking

For engineers
1

I’m setting up the JavaScript tracker for our website and am looking for a way to have a callback function with events.

The documentation provides a method for callback functions to be called after sp.js loads, but we are looking for a way to have a function that executes only after confirmation that an event has been successfully sent to the collector.

Is there currently a way to do this with snowplow or some kind of workaround?

Thanks,
Abhi

2

Hi @gbakulgod - good question, it’s a feature we have flipflopped about adding a couple of times. Please add your voice to the discussion here: https://github.com/snowplow/snowplow-javascript-tracker/issues/30

3

Thanks alex, reading the discussion was very helpful.

I was wondering if you could help me better understand one of the comments made by yalisassoon on the forum:

Now that we’re pushing events to localStorage so that they can be fired on a subsequent page if the page is reloaded v quickly, should we close this issue?

How exactly does snowplow save the events to localStorage? And how confident can we be that the events will be fired regardless of page reloads?

4

Hi @gbakulgod - you can read more about how the JavaScript Tracker uses localStorage here: