Support Google Analytics 4

I'm trying to get this working with D9, commerce_google_analytics (8.x-1.0-beta1) and google_analytics (4.0.0). I use the D7 version of these modules and it was just a case of turning them on and the order info went across. This was using the universal analytics, not GA4.

I tried that here and no commerce info is going across. Is there more configuration that needs doing on the website or in Google Analytics? Does this depend on any other patches or module versions?

I ask about patches because if I create a rule and add the push event action, I get:

"Notice: Undefined index: context in ga_push_form_rules_expression_edit_alter() (line 1123 of /ga_push/ga_push.module)
"Notice: Undefined index: event in ga_push_form_rules_expression_edit_alter() (line 1123 of /ga_push/ga_push.module)"
"Error: Unsupported operand types in ga_push_form_rules_expression_edit_alter() (line 1123 of ga_push/ga_push.module)"

I figured I may have to create my own rules, where they were default in D7? Happy to contribute a screencast of setting it up. The readme is about D7.

I have need for GA4 integration for a client of ours, and I wonder if it would make sense to integrate this Drupal module with a wrapping library like:

https://github.com/br33f/php-GA4-Measurement-Protocol

So that that library can do the heavy lifting of formatting all the data etc and we can build up the higher level objects from the data passed in and then send.

In terms of implementation, maybe it would also make sense to consider this as an alternative method so that the site admin can switch over, and, if we wanted to be super nice, could potentially provide another method that calls both GA4 and UA measurement protocol methods so that for the next few months data is logged in both APIs.

Someone on this thread do shout if you've got better ideas, or a reason why the above is silly, otherwise I'll get cracking on that.
The current working the Merge Request kinda looks like a single person scratching their use-case-itch, rather than trying to do general support for server side GA4, which quite a few people are going to need I think.

I just wanted to pipe in, if you are using Commerce Google Analytics, you need the patch from the MR here: https://www.drupal.org/project/commerce_google_analytics/issues/3285744 →

We're running this in D9, but only for commerce data. The only configuration is to select Commerce Enhanced, make sure you enter the GA4 credentials. I just did the bare minimum to get GA4 working with Commerce Google Analytics, I am sure there is a lot of improvements that could be made.

@scottsawyer Thanks for replying. I really appreciate it.

I've applied the patch from the other issue and here. Using the dev branch for both. I'm receiving this error when completing checkout:

AH01071: Got error 'PHP message: Error: Class 'Drupal\\ga_push\\GA4Service' not found in /web/core/lib/Drupal/Component/DependencyInjection/Container.php on line 259 #0 /web/core/lib/Drupal/Component/DependencyInjection/Container.php(177): Drupal\\Component\\DependencyInjection\\Container->createService()\n#1 /web/core/lib/Drupal.php(197): Drupal\\Component\\DependencyInjection\\Container->get()\n#2 /web/modules/contrib/ga_push/inc/ga_push.utmp.php.inc(48): Drupal::service()\n#3 /web/modules/contrib/ga_push/ga_push.module(214): ga_push_method_utmp_php()\n#4 /web/modules/contrib/ga_push/ga_push.module(471): ga_push_add()\n#5 /...', referer: /checkout/108/review

I did clear the cache after updating to dev and applying the patches.

A couple of other questions:

1. What default method should I select on the ga_push settings form?
2. Where are the "Commerce Enhanced" settings you mention? Drupal or Google? I can't seem to find it in either.

I've tried all the default methods except GA.js as it says deprecated. None throw errors except for Measurement Protocol (php). That throws the error above?

With the others, checkout is completed but nothing has appeared in Analytics. I made a couple of orders yesterday.

It's working for me now (Measurement Protocol (php)).

I needed to temporally add $settings['class_loader_auto_detect'] = FALSE; to my settings.php to have the class load. So a APC caching problem my end. Many thanks.

Any plans to back port to D7?

I'm also interested in a D7 backport...

@rpataca, @JordanMagnuson then port it. You can submit a patch or MR and see if it gets accepted.

The required br33f/php-ga4-mp library is listed in the composer.json file, and

new BaseRequest($options['cid']);

in ga_push/inc/ga_push.php_mp.inc requires anyone using the function to set their Google Analytics client id in the options even if using the default id that the code itself has loaded from configuration a few lines before. I've attempted to fix these in the fork, but for some reason I can't get access to it, so I'll have to leave it for someone else to resolve.

Eduardo Morales Alberti → closed merge request !2

@darthsteven Please give us a guideline for the description.

I tested the MR and seems to work right so, is ready to merge after those changes.