How to change aaa.com to bbb.com before request using fiddlercore？

[Charltsing Liu]

        private void FiddlerApplication_BeforeRequest(Session oSession)

        {

            if (oSession.url.Contains("www.aaa.com"))

            {

                oSession.bBufferResponse = true;

                //oSession.utilSetRequestBody

                //oSession.utilReplaceInRequest                

            }

        }

How to change aaa.com  to  bbb.com  before request？

[Charltsing Liu]

i used   oSession.oRequest.headers.RequestPath = oSession.oRequest.headers.RequestPath.Replace("1111","2222");

it works well.

[Eric Lawrence]

This topic is well-covered in the Fiddler book, as there are three different ways to do this. 

Typically, you'd do something like:

   if (oSession.HostnameIs("www.aaa.com")) oSession.host = "www.bbb.com";