GTAG GET API - Custom Tag Template
The GTAG GET API custom tag template is a tag template for Google Tag Manager’s community template gallery.
Resource |
---|
Blog post |
Vendor documentation |
Gallery entry |
GitHub repo |
Description
This tag writes the values for the selected default fields (Client ID, Session ID, GCLID) as well as any custom fields set with the Google Analytics 4 template into dataLayer
.
It utilizes the asynchronous .get()
API of Google Site Tag.
See the official documentation for a summary of the API.
Instructions
Create a tag with the GTAG GET API template, and choose all the fields you want it to write into dataLayer
.
Then, and this is important, you have to set the tag in a tag sequence to fire after (as a Cleanup Tag) the Google Analytics 4: Configuration tag (or an Event tag if you don’t use a Configuration tag).
This tag must fire after a Google Analytics 4 tag has completely fired, or else the
gtag()
GET API will not do anything.
When the tag fires, it launches a number of calls to gtag()
GET API - one for each field it has to resolve. Once all the fields have been resolved, a dataLayer.push()
is done with the following contents:
{
"event": "gtagApiGet",
"gtagApiResult": {
"client_id": "123123123.123123123",
"session_id": "1608578585",
...
}
}
After this, you can create a Custom Event trigger for the gtagApiGet
event and Data Layer variables for the individual field values in the gtagApiResult
object.
Release notes
Date | Changeset |
---|---|
21 December 2020 | Remove console logging. |
21 December 2020 | Initial release. |