[[["เข้าใจง่าย","easyToUnderstand","thumb-up"],["แก้ปัญหาของฉันได้","solvedMyProblem","thumb-up"],["อื่นๆ","otherUp","thumb-up"]],[["ไม่มีข้อมูลที่ฉันต้องการ","missingTheInformationINeed","thumb-down"],["ซับซ้อนเกินไป/มีหลายขั้นตอนมากเกินไป","tooComplicatedTooManySteps","thumb-down"],["ล้าสมัย","outOfDate","thumb-down"],["ปัญหาเกี่ยวกับการแปล","translationIssue","thumb-down"],["ตัวอย่าง/ปัญหาเกี่ยวกับโค้ด","samplesCodeIssue","thumb-down"],["อื่นๆ","otherDown","thumb-down"]],["อัปเดตล่าสุด 2025-07-25 UTC"],[],[],null,["- [HTTP request](#body.HTTP_TEMPLATE)\n- [Request body](#body.request_body)\n- [Response body](#body.response_body)\n- [Authorization scopes](#body.aspect)\n\nCreates a `Registration`, causing Classroom to start sending notifications from the provided `feed` to the destination provided in `cloudPubSubTopic`.\n\nReturns the created `Registration`. Currently, this will be the same as the argument, but with server-assigned fields such as `expiryTime` and `id` filled in.\n\nNote that any value specified for the `expiryTime` or `id` fields will be ignored.\n\nWhile Classroom may validate the `cloudPubSubTopic` and return errors on a best effort basis, it is the caller's responsibility to ensure that it exists and that Classroom has permission to publish to it.\n\nThis method may return the following error codes:\n\n- `PERMISSION_DENIED` if:\n - the authenticated user does not have permission to receive notifications from the requested field; or\n - the current user has not granted access to the current Cloud project with the appropriate scope for the requested feed. Note that domain-wide delegation of authority is not currently supported for this purpose. If the request has the appropriate scope, but no grant exists, a \\[Request Errors\\]\\[`@MissingGrant` error\\] is returned.\n - another [access error](/workspace/classroom/reference/Access.Errors) is encountered.\n- `INVALID_ARGUMENT` if:\n - no `cloudPubsubTopic` is specified, or the specified `cloudPubsubTopic` is not valid; or\n - no `feed` is specified, or the specified `feed` is not valid.\n- `NOT_FOUND` if:\n - the specified `feed` cannot be located, or the requesting user does not have permission to determine whether or not it exists; or\n - the specified `cloudPubsubTopic` cannot be located, or Classroom has not been granted permission to publish to it.\n\nHTTP request\n\n`POST https://classroom.googleapis.com/v1/registrations`\n\nThe URL uses [gRPC Transcoding](https://google.aip.dev/127) syntax.\n\nRequest body\n\nThe request body contains an instance of [Registration](/workspace/classroom/reference/rest/v1/registrations#Registration).\n\nResponse body\n\nIf successful, the response body contains a newly created instance of [Registration](/workspace/classroom/reference/rest/v1/registrations#Registration).\n\nAuthorization scopes\n\nRequires the following OAuth scope:\n\n- `https://www.googleapis.com/auth/classroom.push-notifications`\n\nFor more information, see the [Authorization guide](/workspace/guides/configure-oauth-consent)."]]