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I am getting redirected when trying to set notification preferences via the API using PowerShell

Question asked by on May 5, 2015
Latest reply on May 10, 2015 by

The following works - I get the notification preferences for the specified user:


$url = ""$access_token = ""$headers = @{"Authorization"=$("Bearer " + $access_token)}$request = Invoke-RestMethod -Uri $url -Headers $headers -Method GET


I create an object to express my desired notifcation preferences in PowerShell and convert it to JSON:


$json_never_prefs = @{new_account_user = "never"; assignment_created = "never";}$json_never_prefs = $json_never_prefs | ConvertTo-Json



Then I attempt to put the new preferences at the web endpoint - as per documentation: Canvas LMS REST API Documentation


$request = Invoke-RestMethod -Uri $url -Headers $headers -Method PUT -Body $json_never_prefs -ContentType "application/json"

>> This tells me I am going to be redirected - WHY?


If I change it to a Invoke-WebReuqest, I can get the redirection URL: ""
>> But I am using the access token?


If I grab a session variable as per below, I still can't update the preferences:

$request = Invoke-WebRequest -Uri $url -Headers $headers -Method GET -SessionVariable session$request = Invoke-WebRequest -Uri $url -Method GET -WebSession $session

>> $request is a 200 response here with the expected notification preferences response (using no $headers and instead using the session variable)


When I attempt to do a PUT using the session variable though, I get the following:

$request = Invoke-WebRequest -Uri $url -Method PUT -Body $json_never_prefs -ContentType "application/json" -WebSession $session


>>Invoke-WebRequest : Skip To Content My Dashboard Log In



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At line:1 char:12+ $request = Invoke-WebRequest -Uri $url -Method PUT -Body $json_never_ ...

+            ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

   + CategoryInfo          : InvalidOperation: (System.Net.HttpWebRequest:HttpWebRequest) [Invoke-WebRequest], WebException




Any help would be appreciated as I have been tasked with changing all observers notification preferences via the API and can not figure out how to do this currently.


Thanks in advance,




Message was edited by: Brad Niessen code tags for formatting