Required. The parent document. In the format: projects/{projectId}/databases/{databaseId}/documents/{document_path}. For example: projects/my-project/databases/my-database/documents/chatrooms/my-chatroom
Request body
The request body contains data with the following structure:
JSON representation
{"pageSize": integer,"pageToken": string,// Union field consistency_selector can be only one of the following:"readTime": string// End of list of possible types for union field consistency_selector.}
Union field consistency_selector. The consistency mode for this request. If not set, defaults to strong consistency. consistency_selector can be only one of the following:
This must be a microsecond precision timestamp within the past one hour, or if Point-in-Time Recovery is enabled, can additionally be a whole minute timestamp within the past 7 days.
Uses RFC 3339, where generated output will always be Z-normalized and use 0, 3, 6 or 9 fractional digits. Offsets other than "Z" are also accepted. Examples: "2014-10-02T15:01:23Z", "2014-10-02T15:01:23.045123456Z" or "2014-10-02T15:01:23+05:30".
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-26 UTC."],[[["\u003cp\u003eThis endpoint retrieves a list of collection IDs located under a specified document within a Firestore database.\u003c/p\u003e\n"],["\u003cp\u003eThe request requires a \u003ccode\u003eparent\u003c/code\u003e parameter in the format \u003ccode\u003eprojects/{projectId}/databases/{databaseId}/documents/{document_path}\u003c/code\u003e to identify the document.\u003c/p\u003e\n"],["\u003cp\u003eThe request body accepts parameters such as \u003ccode\u003epageSize\u003c/code\u003e for controlling the number of results and \u003ccode\u003epageToken\u003c/code\u003e for pagination.\u003c/p\u003e\n"],["\u003cp\u003eThe request body also includes a \u003ccode\u003econsistency_selector\u003c/code\u003e field to set a \u003ccode\u003ereadTime\u003c/code\u003e, which will allow for reading data as it existed at a given time in the past.\u003c/p\u003e\n"],["\u003cp\u003eThe response body will contain an array of \u003ccode\u003ecollectionIds\u003c/code\u003e and a \u003ccode\u003enextPageToken\u003c/code\u003e for handling large result sets.\u003c/p\u003e\n"]]],[],null,["# Method: projects.databases.documents.listCollectionIds\n\nLists all the collection IDs underneath a document.\n\n### HTTP request\n\n`POST https://firestore.googleapis.com/v1beta1/{parent=projects/*/databases/*/documents}:listCollectionIds`\n\nThe URL uses [gRPC Transcoding](https://google.aip.dev/127) syntax.\n\n### Path parameters\n\n### Request body\n\nThe request body contains data with the following structure:\n\n### Response body\n\nThe response from [Firestore.ListCollectionIds](/firestore/docs/reference/rest/v1beta1/projects.databases.documents/listCollectionIds#google.firestore.v1beta1.Firestore.ListCollectionIds).\n\nIf successful, the response body contains data with the following structure:\n\n### Authorization scopes\n\nRequires one of the following OAuth scopes:\n\n- `https://www.googleapis.com/auth/datastore`\n- `https://www.googleapis.com/auth/cloud-platform`\n\nFor more information, see the [Authentication Overview](/docs/authentication#authorization-gcp)."]]
