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c#httpwebrequestfiddlerwireshark

Capture local http post traffic

I have two C# winform applications on the same window machine.

  • First application runs a http listener on localhost and port 4567 (not via IIS)
  • Second application issue a http post (httpWebRequest) to port 4567.

I'm trying to see the post/request traffic like I normally would when viewing http traffic in Fiddler2. I have no luck so far when trying to capture this traffic with fiddler2, Charles and Wireshark.

Does anyone have insight on how to capture this traffic?

Solution

  • To see the requests to your localhost application using fiddler, please set the URL in the calling application as shown below

    http://localhost.fiddler:4567/

    The following post should help you out

    Monitor traffic to localhost from IE or .NET