[Home](./index.md) > [@firebase/firestore](./firestore.md) > [lite](./firestore_lite.md) > [FirebaseFirestore](./firestore_lite.firebasefirestore.md) ## FirebaseFirestore class The Cloud Firestore service interface. Do not call this constructor directly. Instead, use [getFirestore()](./firestore_.getfirestore.md). Signature: ```typescript export declare class FirebaseFirestore ``` ## Properties | Property | Modifiers | Type | Description | | --- | --- | --- | --- | | [app](./firestore_lite.firebasefirestore.app.md) | | [FirebaseApp](./app.firebaseapp.md) | The [FirebaseApp](./app.firebaseapp.md) associated with this Firestore service instance. | ## Methods | Method | Modifiers | Description | | --- | --- | --- | | [toJSON()](./firestore_lite.firebasefirestore.tojson.md) | | Returns a JSON-serializable representation of this Firestore instance. |