HOWTO: Extract POST-request using Fiddler

Sometimes our customers experience some problems with different POST-request fields which Image Uploader sends. For example: some field could not be found or has incorrect value.

To debug such problems you can use FiddlerFileExtractor.dll - extension for Fiddler (Fiddler is a Web Debugging Proxy). This extension allows to save all the successfully uploaded files to the folder named '.../Fiddler2/Scripts/ExtractFolder/' by default. Also it dumps full POST-request into Dump.txt file.

How to use it:

Put FiddlerFileExtractor.dll into \My Documents\Fiddler2\Scripts or \Program Files\Fiddler2\Scripts folder. Run Fiddler. Run any browser and try to upload files using Image Uploader. After upload is finished, you can find dumped files and POST-request in ExtractFolder folder.

Also you can configure FiddlerFileExtractor.dll using FiddlerFileExtractor.dll.config file:

• ExtractFolder – path for custom folder where you want to save a dump.

• ClearExtractFolderBeforeDump – allows to clear ExtractFolder folder before to save new dump. Also you can save all dumps in folder with names like: “2010.05.26 04.38.56_GUID”.

  Default value is True.

• MinRequestSize – the minimum POST-request size which will be dumped.

Example for FiddlerFileExtractor.dll.config file:

<?xml version="1.0" encoding="utf-8"?>
<configuration>
    <appSettings>
        <add key="ExtractFolder" value="D:\Temp\DumpStorage" />
        <add key="ClearExtractFolderBeforeDump" value="False" />
	<add key="MinRequestSize" value="1500" />
    </appSettings>
</configuration>

Edited by moderator Thursday, June 20, 2013 9:21:13 PM(UTC)  | Reason: Not specified

File Attachment(s):

FiddlerFileExtractor.dll (8kb) downloaded 136 time(s).