How can I restrict access to collections when using Firestore's REST API

Question

I've noticed that when making a GET request to the Firestore's REST API with a Collection path, the response will be the whole collection(I didn't check with a big collection).

I would like to know how can I limit the number of retrieved documents when such request is made. For example, return only 15.

Answer 1

When using the list method to get documents in a collection, you can use the pageSize query parameter along with pageToken to limit the number of documents, as described in the documentation.

pageSize

The maximum number of documents to return.

pageToken

The nextPageToken value returned from a previous List request, if any.