Fiddler add binary file data to POST

file-upload binary fiddler
Oliver picture Oliver · Oct 6, 2011 · Viewed 21.4k times · Source

I'm try to add binary file data directly to the request body of a POST call so I can simulate a file upload. However, I tried setting a 'before request' breakpoint and using 'insert file' but I couldn't seem to get that to work. I also tried to modify CustomRules.js to inject the file but couldn't figure out how to load binary data via JScript. Is there an easy solution here?

Answer

ManicBlowfish picture ManicBlowfish · Sep 7, 2012

I'm sure this is a new feature in the year since this question was answered, but thought I'd add it anyhow:

There's a blue "[Upload file]" link in Composer now on the right side under the URL textbox. This will create a full multipart/form-data request. If you use this, you'll notice in the body you now have something that looks like this:

<@INCLUDE C:\Some\Path\my-image.jpg@>

In my case, I just wanted to POST the binary file directly with no multipart junk, so I just put the <@INCLUDE ... @> magic in the request body, and that sends the binary file as the body.

Related questions

How send arraybuffer as binary via Websocket?

I am working on a project with Mozilla Europe. In this project, I use websocket by Worlize (server-side) and Mozilla (client side), Node.js to try to upload files from a client to a server. My present goal is to …

Read More
Insomnia upload pic and post data at same time

I'm having problem posting binary data and regular data at the same time. How I can test it with Insomnia? Insomnia offers only URL Encoded for data and Binary File for file. I cannot send both at the same time. …

Read More
jQuery Ajax File Upload

Can I use the following jQuery code to perform file upload using POST method of an ajax request ? $.ajax({ type: "POST", timeout: 50000, url: url, data: dataString, success: function (data) { alert('success'); return false; } }); If it is possible, do I need …

Read More