how to make authentication in api code example

Example 1: api authentication

I use bearer tokens in my current framework.
I send a get request to special API endpoint by providing valid 
credentials, then it will return Access Token. I use that token 
in my request header and access other API endpoints

Example 2: api authentication work in your project

I use bearer tokens in my current framework.
I send a get request to special API endpoint by providing valid 
credentials, then it will return Access Token. I use that token 
in my request header and access other API endpoints