Get Scores from Line Item

The LTI® protocol allows you to retrieves scores from the LMS grade book through the Assignment and Grades - Results service. LTIAAS gives you access to this service through the /api/lineitems/:lineItemID/scores API endpoint.

Please check our Manipulating grades guide and its Retrieving grades section to learn more about using this endpoint.

API Authentication Method	Supported
LTIK-AUTH-V2	✅
SERVICE-AUTH-V1	✅
Bearer

Path Parameters

lineItemID uri required

The URL encoded line item ID.

Query Parameters

userId string

Used to to filter the results to a single user. The results MUST contain at most 1 result. An empty array MAY be returned if the user does not have any result recorded.

limit integer

Possible values: >= 1

Used to to restrict the number of results returned; the platform MAY further reduce the number of results returned at its own discretion.

url string

Retrieves scores from a specific URL

Responses

• 200
• 401

---

application/json

Schema

Example (from schema)

---

Schema

scores object[] required
The platform must return a result record for each user that has a non empty 'resultScore' for the queried upon line item. The platform MAY skip empty results.
Array [
id uri required
URL uniquely identifying the result record.
userId string required
The userId contains the LTI® user ID identifying the recipient of the Result (usually a learner). The userId MUST be present.
scoreOf uri required
URL identifying the Line Item to which this result belongs. Must be the same as the line item id and the value of the lineitem claim when included in the LTI® message.
timestamp date-time required
The timestamp MUST be present and indicate when the score was changed; it is intended to be used by the platform as a way to guard against out of order score updates. Score timestamp represents the server time when the Score state was modified.
resultScore number
The current score for this user. The value must be a numeric value. If no value exists, this attribute may be omitted, or have an explicit null value.
resultMaximum number
Possible values: > 0
The 'resultMaximum' value MUST be a positive number (with 0 considered a negative number); if no value is specified, then a default maximum value of 1 must be used.
comment string
The current value for the comment. The value must be a string. If no value exists, this attribute may be omitted, blank or have an explicit null value.
]
next uri

A URL pointing to the next page of line items.

prev uri

A URL pointing to the previous page of line items.

first uri

A URL pointing to the first page of line items.

last uri

A URL pointing to the last page of line items.

{
  "scores": [
    {
      "id": "https://lms.example.com/course/1/lineitems/1/scores/2",
      "userId": "2",
      "scoreOf": "https://lms.example.com/course/1/lineitems/1",
      "timestamp": "2020-06-02T10:51:08-03:00",
      "resultScore": 95,
      "resultMaximum": 100,
      "comment": "string"
    }
  ],
  "next": "https://lms.example.com/course/1/lineitems/1/scores?page=3",
  "prev": "https://lms.example.com/course/1/lineitems/1/scores?page=1",
  "first": "https://lms.example.com/course/1/lineitems/1/scores?page=1",
  "last": "https://lms.example.com/course/1/lineitems/1/scores?page=3"
}

Unauthorized. Please check our guide on Authenticating API requests to learn about how authentication works in the LTIAAS API.

application/json

Schema

Example (from schema)

---

Schema

status number required

Default value: 401

error string required

Default value: Unauthorized

details object required
message string required
description string required

{
  "status": 401,
  "error": "Unauthorized",
  "details": {
    "message": "INVALID_LTIK_AUTH_AUTHORIZATION_HEADER",
    "description": "Invalid or expired ltik."
  }
}

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