QueryDocumentSnapshot class

A QueryDocumentSnapshot contains data read from a document in your Firestore database as part of a query. The document is guaranteed to exist and its data can be extracted with .data() or .get(<field>) to get a specific field.

A QueryDocumentSnapshot offers the same API surface as a DocumentSnapshot. Since query results contain only existing documents, the exists property will always be true and data() will never return 'undefined'.

Signature:

export declare class QueryDocumentSnapshot<AppModelType = DocumentData, DbModelType extends DocumentData = DocumentData> extends DocumentSnapshot<AppModelType, DbModelType> 

Extends: DocumentSnapshot<AppModelType, DbModelType>

Methods

QueryDocumentSnapshot.data()

Retrieves all fields in the document as an Object.

Signature:

/** @override */
data(): AppModelType;

Returns:

AppModelType

An Object containing all fields in the document.