courses

GET /v1/courses/{courseId}/posts/{postId}/addOnAttachments/{attachmentId}/studentSubmissions/{submissionId}

Changed on Nov 2, 2026

Returns a student submission for an add-on attachment. This method returns the following error codes: * PERMISSION_DENIED for access errors. * INVALID_ARGUMENT if the request is malformed. * NOT_FOUND if one of the identified resources does not exist.

Request

Base URL
https://classroom.googleapis.com
URL
https://classroom.googleapis.com/v1/courses/{courseId}/posts/{postId}/addOnAttachments/{attachmentId}/studentSubmissions/{submissionId}
Auth
- OAuth 2 and OAuth 2
  Implicit: https://accounts.google.com/o/oauth2/auth
  Scopes: https://www.googleapis.com/auth/classroom.addons.student
  Authorization code: https://accounts.google.com/o/oauth2/auth
  Token URL: https://accounts.google.com/o/oauth2/token scopes: https://www.googleapis.com/auth/classroom.addons.student
- or OAuth 2 and OAuth 2
  Implicit: https://accounts.google.com/o/oauth2/auth
  Scopes: https://www.googleapis.com/auth/classroom.addons.teacher
  Authorization code: https://accounts.google.com/o/oauth2/auth
  Token URL: https://accounts.google.com/o/oauth2/token scopes: https://www.googleapis.com/auth/classroom.addons.teacher
- or OAuth 2 and OAuth 2
  Implicit: https://accounts.google.com/o/oauth2/auth
  Scopes: https://www.googleapis.com/auth/classroom.coursework.me
  Authorization code: https://accounts.google.com/o/oauth2/auth
  Token URL: https://accounts.google.com/o/oauth2/token scopes: https://www.googleapis.com/auth/classroom.coursework.me
- or OAuth 2 and OAuth 2
  Implicit: https://accounts.google.com/o/oauth2/auth
  Scopes: https://www.googleapis.com/auth/classroom.coursework.me.readonly
  Authorization code: https://accounts.google.com/o/oauth2/auth
  Token URL: https://accounts.google.com/o/oauth2/token scopes: https://www.googleapis.com/auth/classroom.coursework.me.readonly
- or OAuth 2 and OAuth 2
  Implicit: https://accounts.google.com/o/oauth2/auth
  Scopes: https://www.googleapis.com/auth/classroom.coursework.students
  Authorization code: https://accounts.google.com/o/oauth2/auth
  Token URL: https://accounts.google.com/o/oauth2/token scopes: https://www.googleapis.com/auth/classroom.coursework.students
- or OAuth 2 and OAuth 2
  Implicit: https://accounts.google.com/o/oauth2/auth
  Scopes: https://www.googleapis.com/auth/classroom.coursework.students.readonly
  Authorization code: https://accounts.google.com/o/oauth2/auth
  Token URL: https://accounts.google.com/o/oauth2/token scopes: https://www.googleapis.com/auth/classroom.coursework.students.readonly
- or OAuth 2 and OAuth 2
  Implicit: https://accounts.google.com/o/oauth2/auth
  Scopes: https://www.googleapis.com/auth/classroom.student-submissions.me.readonly
  Authorization code: https://accounts.google.com/o/oauth2/auth
  Token URL: https://accounts.google.com/o/oauth2/token scopes: https://www.googleapis.com/auth/classroom.student-submissions.me.readonly
- or OAuth 2 and OAuth 2
  Implicit: https://accounts.google.com/o/oauth2/auth
  Scopes: https://www.googleapis.com/auth/classroom.student-submissions.students.readonly
  Authorization code: https://accounts.google.com/o/oauth2/auth
  Token URL: https://accounts.google.com/o/oauth2/token scopes: https://www.googleapis.com/auth/classroom.student-submissions.students.readonly

Path parameters

courseIdstring required

Required. Identifier of the course.

postIdstring required

Optional. Deprecated, use item_id instead.

attachmentIdstring required

Required. Identifier of the attachment.

submissionIdstring required

Required. Identifier of the student’s submission.

Query parameters

itemIdstring

Identifier of the Announcement, CourseWork, or CourseWorkMaterial under which the attachment is attached. This field is required, but is not marked as such while we are migrating from post_id.

Response

Successful response

courseWorkSubmissionIdstring

Output only. Identifier of the course work submission under which this attachment submission was made.

idstring

Output only. Classroom-assigned identifier for this student submission. This is unique among submissions for the relevant course work and add-on attachment combination.

pointsEarnednumber double

Student grade on this attachment. If unset, no grade was set.

Submission state of add-on attachment's parent post (i.e. assignment).

userIdstring

Identifier for the student that owns this submission. Requires the user to be a teacher in the course and have permission to read student submissions. See courseWork.studentSubmissions.get for the list of acceptable OAuth scopes for this field. Read-only.

Changes

Nov 2, 2026d9e82ce809f1 Revision changes
- info
  the security scope https://www.googleapis.com/auth/classroom.addons.student was added to the endpoint's security scheme Oauth2
- info
  the security scope https://www.googleapis.com/auth/classroom.addons.student was added to the endpoint's security scheme Oauth2c
- info
  the security scope https://www.googleapis.com/auth/classroom.student-submissions.students.readonly was removed from the endpoint's security scheme Oauth2
- info
  the security scope https://www.googleapis.com/auth/classroom.student-submissions.students.readonly was removed from the endpoint's security scheme Oauth2c
Oct 20, 20268575901d0ec9 Revision changes
- info
  the security scope https://www.googleapis.com/auth/classroom.addons.student was added to the endpoint's security scheme Oauth2
- info
  the security scope https://www.googleapis.com/auth/classroom.addons.student was added to the endpoint's security scheme Oauth2c
- info
  the security scope https://www.googleapis.com/auth/classroom.student-submissions.students.readonly was removed from the endpoint's security scheme Oauth2
- info
  the security scope https://www.googleapis.com/auth/classroom.student-submissions.students.readonly was removed from the endpoint's security scheme Oauth2c

Operation history (4 revisions)