Cloud Firestore offers robust access management and authentication
through two different methods, depending on the client libraries you use.
For mobile and web client libraries, use Firebase Authentication and
Cloud Firestore Security Rules to handle serverless authentication,
authorization, and data validation. Learn how to secure your data for the
Android, iOS, and Web client libraries with
Cloud Firestore Security Rules.
For server client libraries, use Identity and Access Management (IAM)
to manage access to your database. Learn how
to secure your data for the Java, Python, Node.js, and Go client libraries