[Home](./index.md) > [@firebase/firestore](./firestore.md) > [/](./firestore_.md) > [DocumentSnapshot](./firestore_.documentsnapshot.md) ## DocumentSnapshot class A `DocumentSnapshot` contains data read from a document in your Firestore database. The data can be extracted with `.data()` or `.get()` to get a specific field. For a `DocumentSnapshot` that points to a non-existing document, any data access will return 'undefined'. You can use the `exists()` method to explicitly verify a document's existence. Signature: ```typescript export declare class DocumentSnapshot ``` ## Constructors | Constructor | Modifiers | Description | | --- | --- | --- | | [(constructor)()](./firestore_.documentsnapshot._constructor_.md) | | Constructs a new instance of the DocumentSnapshot class | ## Properties | Property | Modifiers | Type | Description | | --- | --- | --- | --- | | [id](./firestore_.documentsnapshot.id.md) | | string | Property of the DocumentSnapshot that provides the document's ID. | | [metadata](./firestore_.documentsnapshot.metadata.md) | | [SnapshotMetadata](./firestore_.snapshotmetadata.md) | Metadata about the DocumentSnapshot, including information about its source and local modifications. | | [ref](./firestore_.documentsnapshot.ref.md) | | [DocumentReference](./firestore_.documentreference.md)<T> | The DocumentReference for the document included in the DocumentSnapshot. | ## Methods | Method | Modifiers | Description | | --- | --- | --- | | [data(options)](./firestore_.documentsnapshot.data.md) | | Retrieves all fields in the document as an Object. Returns undefined if the document doesn't exist.By default, FieldValue.serverTimestamp() values that have not yet been set to their final value will be returned as null. You can override this by passing an options object. | | [exists()](./firestore_.documentsnapshot.exists.md) | | Property of the DocumentSnapshot that signals whether or not the data exists. True if the document exists. | | [get(fieldPath, options)](./firestore_.documentsnapshot.get.md) | | Retrieves the field specified by fieldPath. Returns undefined if the document or field doesn't exist.By default, a FieldValue.serverTimestamp() that has not yet been set to its final value will be returned as null. You can override this by passing an options object. |