Callback Parameters

You can also register a callback URL for that event in your dashboard and we will send a GET request to that URL whenever the event gets tracked. In that case you can also put some key-value pairs in an object and pass it to the trackEvent method. We will then append these named parameters to your callback URL.

For example, suppose you have registered the URL http://www.adjust.com/callback for your event with event token abc123 and execute the following lines:

var adjustEvent = new AdjustEvent("abc123");

adjustEvent.addCallbackParameter("key", "value");
adjustEvent.addCallbackParameter("foo", "bar");

Adjust.trackEvent(adjustEvent);

In that case we would track the event and send a request to:

http://www.adjust.com/callback?key=value&foo=bar

It should be mentioned that we support a variety of placeholders like {idfa} for iOS or {gps_adid} for Android that can be used as parameter values. In the resulting callback the {idfa} placeholder would be replaced with the ID for Advertisers of the current device for iOS and the {gps_adid} would be replaced with the Google Advertising ID of the current device for Android. Also note that we don't store any of your custom parameters, but only append them to your callbacks. If you haven't registered a callback for an event, these parameters won't even be read.

You can read more about using URL callbacks, including a full list of available values, in our callbacks guide.