There are two ways to retrieve data stored in Cloud Firestore. Either of these methods can be used with documents, collections of documents, or the results of queries: Call a method to get the data . Set a listener to receive data-change events.
Read moreWhat is collection and document in firebase?
Collections. Documents live in collections, which are simply containers for documents . For example, you could have a users collection to contain your various users, each represented by a document: collections_bookmark users.11 Kas 2021
Read moreHow many documents can be in a collection firebase?
10 for single-document requests and query requests. 20 for multi-document reads, transactions, and batched writes . The previous limit of 10 also applies to each operation.
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