Visual Studio Team Services - Attaching an attachment to a workitem

Question

I'm create a simple desktop application, which add work items to Visual Studio Team Services (previously Visual Studio Online). My concept application is near to completion and the last element was to send an file as an attachment. The sending work, it just the attaching of the attachment to the work item. I keep on getting Method not allowed response.

The code is simple, as I've tried to limit anything that could stop it working.

Could someone please point out what Is wrong within this picture?

Answer 1

Add attachment requires "Patch" method, try with the code below:

using Microsoft.VisualStudio.Services.WebApi;


HttpResponseMessage response = client.PatchAsync(url, content).Result;
response.EnsureSuccessStatusCode();

And you also need to add "[" and "]" in "msg":

msg.Append("[");
...
msg.Append("]");