Working in powershell to script some Canvas things. Have done a fair amount in PS with the Canvas APIs.
Trying to create an additional login for a user via the login API
POST /api/v1/accounts/:account_id/logins
In powershell I have:
$postParams = @{"user[id]"=$internalID;"login[unique_id]"=$userIN;"login[sis_user_id]"=$userIN}
$canPost1 = (invoke-WebRequest -Headers $headers -contentType $contentType -body $postParams -Method POST -uri $canPost)
I'm getting System.Net.WebException: The remote server returned an error: (422) Unprocessable Entity.
I've also tried
$canPost = "https://utm.test.instructure.com/api/v1/accounts/1/logins?user[id]="+$InternalID+"&login[unique_id]="+$userIN+"&login[sis_user_id]="+$userIN
#$canPost1 = (invoke-WebRequest -Headers $headers -contentType $contentType -Method POST -uri $canPost)
It generates the url (left out the https:// so it would show properly in this question)
utm.test.instructure.com/api/v1/accounts/1/logins?user[id]=22164&login[unique_id]=chazlewo&login[sis_user_id]=chazlewo
Get similar error. Any of you powershell gurus see anything I'm doing wrong? I've not had this problem with creating users via API. Error message doesn't give a lot of info... 
Bruce Harrison
Univ. of Tennessee at Martin
