How to send Google Ads cookies from server to server container in GTM?
I have implemented server-side tagging in in Google Tag Manager (GTM), but I'm sending HTTP requests directly from my backend code, rather than using JavaScript on the frontend (as many other developers). Since, the conversion tracking cookies set by Meta and Google aren't automatically sent when sending a HTTP request from my backend code, I am getting the _fbp and _fbc cookie values from the context and sending them as a "ep.x-fb-ck-fbp" and "ep.x-fb-ck-fbc" to the GTM server container, which allows me to track Facebook ads conversions successfully.
I am now looking to replicate this process for Google Ads. I understand that for Google Ads conversion tracking, the GCLID is a parameter that sets the _gcl_aw cookie which I should use to track conversion. However, I am not certain how to send this cookie value in the Http request that I'm sending from my server to the GTM server container.
In other words, if I'm sending the Meta's _fbc cookie value as a "ep.x-fb-ck-fbc" parameter, how should I send the Google's _gcl_aw and _gcl_au cookies.