React Native Client Certificate Auth -- 2

I need one react native screen, with 2 buttons: 1. first button : https request to server ([login to view URL]) and get response (without client cert). [login to view URL] button: https request to ([login to view URL]) with Client Certificate fetch. when the client certificate accepted by the server, the button change color to green, with some "status message" i need to project do the same thing : one project in React native cli the second project in Expo cli. i need something like this : [login to view URL] i mean: one react native screen, simple example to make : https request "post/get" to a service endpoint with client certificate thanks