How to capture traffic between browser and api

[Linney]

I have two web applications running on my local machine (Visual Studio and C#). One application is a user application and it authorizes against a server running on the same machine. The authorization server is on port 44314. Can Fiddler Everywhere capture the traffic between the browser and the authorization server running on port 44314?

[Nick Iliev]

Hello Linney,

You should be able to capture the traffic between the local server and the browsers, just as you would do with any other traffic to a remote server. However, if you are using a .NET application, note that there are some specific steps for setting a proxy within the .NET application and for using local host addresses. Both of these are explained in the following documentation section: https://docs.telerik.com/fiddler-everywhere/knowledge-base/capturing-net-traffic#manual-configuration

As a side note, if you are simply aiming to capture the HTTPS traffic from the browser application, you should be able to use Fiddler's browser capturing mode directly.

 

Regards,
Nick Iliev
Progress Telerik