Azure B2C Authentication for Asp.net core Web and API

Hi, 

I have created a asp.net core web and API projects and registered with my B2C Active directory and I am able to do the authentication in the asp.net core web and getting the token based on my B2C user flow configuration. Now, I want to access the asp.net core API (which is secured through B2C active directory). 

Please let me know how do I create the access token to access the API ? I want to get the user information also in the API. 

Thanks,

Selva

Selvakumar Rathinam