Attachments may only be added to student submissions belonging to course work objects with a workType of ASSIGNMENT.
This request must be made by the Developer Console project of the OAuth client ID used to create the corresponding course work item.
This method returns the following error codes:
PERMISSION_DENIED if the requesting user is not permitted to access the requested course or course work, if the user is not permitted to modify attachments on the requested student submission, or for access errors.
INVALID_ARGUMENT if the request is malformed.
NOT_FOUND if the requested course, course work, or student submission does not exist.
HTTP request
POST https://classroom.googleapis.com/v1/courses/{courseId}/courseWork/{courseWorkId}/studentSubmissions/{id}:modifyAttachments
Optional. The preview version of the API. This must be set in order to access new API capabilities made available to developers in the Preview Program.
Response body
If successful, the response body contains an instance of StudentSubmission.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-04-17 UTC."],[],[],null,["# Method: courses.courseWork.studentSubmissions.modifyAttachments\n\n- [HTTP request](#body.HTTP_TEMPLATE)\n- [Path parameters](#body.PATH_PARAMETERS)\n- [Request body](#body.request_body)\n - [JSON representation](#body.request_body.SCHEMA_REPRESENTATION)\n- [Response body](#body.response_body)\n- [Authorization scopes](#body.aspect)\n- [Try it!](#try-it)\n\nModifies attachments of student submission.\n\nAttachments may only be added to student submissions belonging to course work objects with a `workType` of `ASSIGNMENT`.\n\nThis request must be made by the Developer Console project of the [OAuth client ID](https://support.google.com/cloud/answer/6158849) used to create the corresponding course work item.\n\nThis method returns the following error codes:\n\n- `PERMISSION_DENIED` if the requesting user is not permitted to access the requested course or course work, if the user is not permitted to modify attachments on the requested student submission, or for [access errors](/workspace/classroom/reference/Access.Errors).\n- `INVALID_ARGUMENT` if the request is malformed.\n- `NOT_FOUND` if the requested course, course work, or student submission does not exist.\n\n### HTTP request\n\n`POST https://classroom.googleapis.com/v1/courses/{courseId}/courseWork/{courseWorkId}/studentSubmissions/{id}:modifyAttachments`\n\nThe URL uses [gRPC Transcoding](https://google.aip.dev/127) syntax.\n\n### Path parameters\n\n| Parameters ||\n|----------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| `courseId` | `string` Identifier of the course. This identifier can be either the Classroom-assigned identifier or an [alias](/workspace/classroom/reference/rest/v1/courses.aliases#CourseAlias). |\n| `courseWorkId` | `string` Identifier of the course work. |\n| `id` | `string` Identifier of the student submission. |\n\n### Request body\n\nThe request body contains data with the following structure:\n\n| JSON representation |\n|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| ``` { \"addAttachments\": [ { object (/workspace/classroom/reference/rest/v1/courses.courseWork.studentSubmissions#Attachment) } ], \"previewVersion\": enum (/workspace/classroom/reference/rest/v1/PreviewVersion) } ``` |\n\n| Fields ||\n|--------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| `addAttachments[]` | `object (`[Attachment](/workspace/classroom/reference/rest/v1/courses.courseWork.studentSubmissions#Attachment)`)` Attachments to add. A student submission may not have more than 20 attachments. [Form](/workspace/classroom/reference/rest/v1/Form) attachments are not supported. |\n| `previewVersion` | `enum (`[PreviewVersion](/workspace/classroom/reference/rest/v1/PreviewVersion)`)` Optional. The preview version of the API. This must be set in order to access new API capabilities made available to developers in the Preview Program. |\n\n### Response body\n\nIf successful, the response body contains an instance of [StudentSubmission](/workspace/classroom/reference/rest/v1/courses.courseWork.studentSubmissions#StudentSubmission).\n\n### Authorization scopes\n\nRequires one of the following OAuth scopes:\n\n- `https://www.googleapis.com/auth/classroom.coursework.students`\n- `\n https://www.googleapis.com/auth/classroom.coursework.me`\n\nFor more information, see the [Authorization guide](/workspace/guides/configure-oauth-consent)."]]