I am trying to upload a text file, to attach to an unpublished Knowledge article in the Utah release of ServiceNow.
My code is:
$uri = "https://instanceName.service-now.com/api/now/attachment/upload"
$method = "POST"
$filePath = "C:\it\test.txt"
$headers = @{
"Accept" = "application/json"
}
$uploadResult = Invoke-RestMethod -Uri $uri -Method Post -Headers $headers -Credential $credential -ContentType "multipart/form-data" -Form @{
"table_name" = "kb_knowledge"
"table_sys_id" = "fcd86f8fc314b5500240d1ec7a01319f" # Sys_id of the article, to which the file should be attached.
"uploadFile" = Get-Item -Path $filePath
}
It looks to me, like the account represented in $credential can add attachments (it can definitely create KM articles).
The error:
- Invoke-RestMethod: {"error":{"message":"Missing parameter: table_name","detail":null},"status":"failure"}
I tried wrapping the form value fields in double quotes (and single quotes, same behavior):
$uploadResult = Invoke-RestMethod -Uri $uri -Method Post -Headers $headers -Credential $credential -ContentType "multipart/form-data" -Form @{
table_name = "`"kb_knowledge`""
table_sys_id = "`"fcd86f8fc314b5500240d1ec7a01319f`"" # Sys_id of the article, to which the file should be attached.
uploadFile = "`"$(Get-Item -Path $filePath)`""
}
But that only resulted in a different error:
- Invoke-RestMethod: {"error":{"message":"Failed to create the attachment. File part might be missing in the request.","detail":null},"status":"failure"}
I am certain that a file exists at C:\it\test.txt. Also, I am using /upload instead of /file (https://developer.servicenow.com/dev.do#!/reference/api/utah/rest/c_AttachmentAPI#attachment-POST-up...) because I want to avoid having to figure out the mime type of the file.
What gives?
