Well you didn't include details on how you intend to use the API, so here are few basic tutorial to help you get the idea
- https://www.youtube.com/watch?v=LTJ5t3fXoXU (highly recommend, it's by a Laracast instructor, well the video is quite old, but will cover most of the API features, and you adapt it to your needs on Laravel 8, slight changes)
- https://www.itsolutionstuff.com/post/how-to-add-google-map-in-laravelexample.html (This is on Laravel 8, and valid for Laravel 9)