Attachments using REST in VB.NET

Hi,

I am currently developing an application using VB.NET in which I am accessing RT using the REST interface. So far, I have been able to successfully create tickets and modify their history by referencing the Request Tracker Wiki. However, I have not been able to add an attachment to a ticket. I have done extensive research online, but so far I have not been able to find any working examples in VB.NET. To actually upload the data to RT, I use System.Net.WebClient. The following VB.NET code does the important work:

Dim Client As New System.Net.WebClient
Dim postBytes As Byte() = System.Text.Encoding.ASCII.GetBytes(postString)
Client.UploadData(URL, “POST”, postBytes)

A simplified version of my URL is as follows:
"…//REST/1.0/ticket/" + ticketNumber + “/comment?user=” + userName + “&pass=” + password

Finally, an example of the content that I post is:
postString = “content=Text: RT Test” + vbLf + “Action: Comment” + vbLf + “Attachment: examplefile.jpg” + vbLf + “attachment_1=”

As you can see, the postString is converted to bytes and then uploaded to the RT server. However, I do not know where or how I should be posting the raw attachment itself. The RT wiki mentions that it should be in a variable “attachment_1,” which I added to the postString variable, but I am not sure what the next step should be. Should the file be converted into bytes and appended to the postBytes variable? I attempted something like this but I received an error saying that no attachment was found for examplefile.jpg.

Thanks for your help!
Todd Burton

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