Question

I was curious as to whether anyone has successfully implemented in Java the route in D2L using Valance as follows:

PUT /d2l/api/le/(D2LVERSION: version)/(D2LID: orgUnitId)/grades/(D2LID: gradeObjectId)/values/(D2LID: userId)

I have been struggling with receiving a 404 from this call when I have checked thoroughly that the required IDs match my records in D2L. When I log into D2L with the Instructor level account that I am using in Java I see that the Course, Test, and Participants are there. The IDs for these are used in the Java code to call the above route, but I receive a 404 and a grade is not updated.

Here is a snip of the code:

HttpURLConnection  connection = null ;

    try {
        uri = userContext.createAuthenticatedUri ("/d2l/api/le/1.0/"+courseId+"/grades/"+gradeId+"/values/"+ userId, "PUT");

        connection= (HttpURLConnection)uri.toURL().openConnection();
        connection.setDoOutput(true);
        connection.setRequestMethod("PUT");
        connection.setRequestProperty("Content-Type", "application/json");

        OutputStream os = connection.getOutputStream();
        String updatedScore = "{\"GradeObjectType\":1,\"PointsNumerator\":\"5\"}";
        os.write(updatedScore.getBytes());
        os.flush();

    }catch(Exception e){
        e.printStackTrace();
    }

The courseID, gradeID, and userID are being passed in and have been verified in the D2L Web UI.
As you can see, I have a JSON string being created for a GradeObjectType of 1 and a PointsNumerator of 5. Are there special permissions that this Instructor account must have beyond the default Instructor account permissions to permit such a call?

Any thoughts would be appreciated.
Thanks

Answer 1

1. (If you haven’t already) You could try making get calls to retrieve these values to ensure they are present and your basic logic is working.
2. If you have access to a very priveleged account you could use that account to try to rule out permissions problems. Instructors that can set grades in the UI should be able to set grades via the API.

update:

An example of a successful request and response follows, perhaps you can identify differences:

REQUEST:

PUT https://valence.desire2learn.com/d2l/api/le/1.0/7574/grades/4852/values/3902?x_b=xDaPHeptaw9syoI1EGdeJ1&x_a=L2Hd9WvDTcyiyu5n2AEgpg&x_d=6U5NTYnTswz4gnu-vZHT3bajswsp3jvxYtwzoeOWKUs&x_c=a6f5hEMrvAxC6PS5UlSUOusVpj-XKnOBwxqhYg5pNtg&x_t=1343070852 HTTP/1.1
Accept-Encoding: gzip,deflate
Content-Type: application/json

{
                "GradeObjectType": 1,
                "PointsNumerator": 9
}


RESPONSE:

HTTP/1.1 200 OK
Cache-Control: private
Content-Length: 0
Server: Microsoft-IIS/6.0
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X-AspNet-Version: 2.0.50727
Date: Mon, 23 Jul 2012 19:14:48 GMT