Laravel - Post to external API with resources?

I have to post from my Laravel App (version 6) to an external API. I have to do some data transformation to accomplish the data structure and values expected from external API.

It's Laravel Resources and Guzzle client the solution for this type of requirement? Other approach I'm considering as I have my app in GCP services, is to use a cloud function to call an API from my Laravel App, tranform data in cloud function and post to external API but this approach looks more complex than a pure Laravel approach.

If any one can share any approach it will be great!

Regards

via Chebli Mohamed