HTTP(S) proxy server development tutorial using c# winform

Question

Hi all, 

 

I am looking for a helpful tutorial that teaches me how to build an HTTP and HTTPS proxy server using c# winforms.

 

I have tried FiddlerCore and Abot Libraries and I am finding it very difficult to acheive the required results.

 

I want a user to provide a url: http://www.example1.com or https://example2.com

 

I want the proxy server to record all the HTTP(S) request. I also want to filter and edit the HTTP POST requests only.

 

Any help on how to learn or how to implement FiddlerCore in c# winforms.

a tutorial that takes me from scratch.Thanks in advance..