[Home](./index.md) > [@firebase/firestore](./firestore.md) > [lite](./firestore_lite.md) > [DocumentSnapshot](./firestore_lite.documentsnapshot.md) > [id](./firestore_lite.documentsnapshot.id.md) ## DocumentSnapshot.id property Property of the `DocumentSnapshot` that provides the document's ID. Signature: ```typescript get id(): string; ```