Capturing traffic from your application with Fiddler utility

In cases where you need to troubleshoot the interaction with some external service, it may be useful to add a tool such as Fiddler to log the traffic exchanged.

Depending on the technology used follow these steps

Java

Configure a Java Application to Use Fiddler

If you are using tomcat you can set the following properties directly to the Tomcat Manager | options:

-DproxySet=true
-Dhttp.proxyHost=127.0.0.1
-Dhttp.proxyPort=8888

C#

Configure .NET Applications

For a C# web application modify the web.config adding the following tags under COnfiguration section:

<system.net>
<defaultProxy enabled="true" useDefaultCredentials="true">
  <proxy autoDetect="false" bypassonlocal="false" proxyaddress="http://127.0.0.1:8888" usesystemdefault="false" />
</defaultProxy>
</system.net>

Android

Configure Fiddler for Android / Google Nexus 7

iOS

Capture Traffic from iOS Device