Authentication access to a user

Hello everyone, How to provide access to API to a user ie. How to register a user to access the API.Is there a way to provide API access? If it so, how to get the response by sending a request from a particular user and how to test to get that into the anlaytics of the same user?

I’d recommend looking at the getting started guides and following those.
The get started guides walk you through setting up a scenario like this.

The guides are available for on-prem, cloud and hybrid.

James