Google Classroom 外掛程式現已全面開放開發人員使用!詳情請參閱
外掛程式說明文件。
Method: courses.posts.getAddOnContext
透過集合功能整理內容
你可以依據偏好儲存及分類內容。
取得特定貼文脈絡中 Classroom 外掛程式的中繼資料。
為了維持資料和權限模型的完整性,在iframe 中開啟外掛程式時,外掛程式應呼叫此方法,驗證查詢參數和要求使用者的角色。
這個方法會傳回下列錯誤代碼:
PERMISSION_DENIED
代表存取錯誤。
INVALID_ARGUMENT
:如果要求格式錯誤。
NOT_FOUND
:如果其中一個已識別的資源不存在。
HTTP 要求
GET https://classroom.googleapis.com/v1/courses/{courseId}/posts/{postId}/addOnContext
這個網址使用 gRPC 轉碼語法。
路徑參數
參數 |
courseId |
string
必要欄位。課程的 ID。
|
postId (deprecated) |
string
選用設定。已淘汰,請改用 itemId 。
|
查詢參數
參數 |
itemId |
string
附件所屬的 Announcement 、CourseWork 或 CourseWorkMaterial 的 ID。這個欄位為必填欄位,但在從 postId 遷移時並未標示為必填。
|
addOnToken |
string
選用設定。授權要求的權杖。 當使用者從 Classroom 重新導向至外掛程式的網址時,系統會將權杖傳遞為查詢參數。 在下列任一條件皆不成立的情況下,就必須使用授權權杖:
- 外掛程式在訊息中包含附件。
- 發出要求的開發人員專案,與建立貼文的專案相同。
|
attachmentId |
string
選用設定。附件的 ID。除了使用者位於附件探索 iframe 的情況外,所有要求都必須提供這個欄位。
|
回應主體
如果成功,回應主體會包含 AddOnContext
的執行例項。
授權範圍
需要下列其中一種 OAuth 範圍:
https://www.googleapis.com/auth/classroom.addons.student
https://www.googleapis.com/auth/classroom.addons.teacher
詳情請參閱授權指南。
除非另有註明,否則本頁面中的內容是採用創用 CC 姓名標示 4.0 授權,程式碼範例則為阿帕契 2.0 授權。詳情請參閱《Google Developers 網站政策》。Java 是 Oracle 和/或其關聯企業的註冊商標。
上次更新時間:2025-07-25 (世界標準時間)。
[null,null,["上次更新時間:2025-07-25 (世界標準時間)。"],[],[],null,["# Method: courses.posts.getAddOnContext\n\n| This method is deprecated; use the `course.announcements`, `course.courseWork` or `course.courseWorkMaterials` method instead.\n\n- [HTTP request](#body.HTTP_TEMPLATE)\n- [Path parameters](#body.PATH_PARAMETERS)\n- [Query parameters](#body.QUERY_PARAMETERS)\n- [Request body](#body.request_body)\n- [Response body](#body.response_body)\n- [Authorization scopes](#body.aspect)\n\nGets metadata for Classroom add-ons in the context of a specific post.\n\nTo maintain the integrity of its own data and permissions model, an add-on should call this to validate query parameters and the requesting user's role whenever the add-on is opened in an [iframe](https://developers.google.com/workspace/classroom/add-ons/get-started/iframes/iframes-overview).\n\nThis method returns the following error codes:\n\n- `PERMISSION_DENIED` for [access errors](/workspace/classroom/reference/Access.Errors).\n- `INVALID_ARGUMENT` if the request is malformed.\n- `NOT_FOUND` if one of the identified resources does not exist.\n\n### HTTP request\n\n`GET https://classroom.googleapis.com/v1/courses/{courseId}/posts/{postId}/addOnContext`\n\nThe URL uses [gRPC Transcoding](https://google.aip.dev/127) syntax.\n\n### Path parameters\n\n| Parameters ||\n|---------------------------|------------------------------------------------------|\n| `courseId` | `string` Required. Identifier of the course. |\n| `postId` **(deprecated)** | `string` Optional. Deprecated, use `itemId` instead. |\n\n### Query parameters\n\n| Parameters ||\n|----------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| `itemId` | `string` 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 postId. |\n| `addOnToken` | `string` Optional. Token that authorizes the request. The token is passed as a query parameter when the user is redirected from Classroom to the add-on's URL. The authorization token is required when neither of the following is true: - The add-on has attachments on the post. - The developer project issuing the request is the same project that created the post. |\n| `attachmentId` | `string` Optional. The identifier of the attachment. This field is required for all requests except when the user is in the [Attachment Discovery iframe](https://developers.google.com/workspace/classroom/add-ons/get-started/iframes/attachment-discovery-iframe). |\n\n### Request body\n\nThe request body must be empty.\n\n### Response body\n\nIf successful, the response body contains an instance of [AddOnContext](/workspace/classroom/reference/rest/v1/AddOnContext).\n\n### Authorization scopes\n\nRequires one of the following OAuth scopes:\n\n- `https://www.googleapis.com/auth/classroom.addons.student`\n- `\n https://www.googleapis.com/auth/classroom.addons.teacher`\n\nFor more information, see the [Authorization guide](/workspace/guides/configure-oauth-consent)."]]