February Update: What's New in Data Connect in Firebase: Web Architecture & Implementation Guide

February Update: What's New in Data Connect in Firebase – Web Architecture & Implementation Guide

Firebase's Data Connect, now rebranded as SQL Connect, offers a managed PostgreSQL instance that pairs with a declarative GraphQL schema compiler. This tool generates type-safe TypeScript, React, and Angular SDKs alongside server-enforced @auth directives, reducing boilerplate for web developers while ensuring security and predictable cloud billing.

For React developers, Firebase now supports React SDK generation using TanStack Query, enabling integration of GraphQL operations into React apps. This feature is accompanied by other framework support on the roadmap.

The introduction of PGLite simplifies data transfer through quick import and export of the database for migration, backup, or new project setup. Users can now view distance measurements in similarity search results through the _metadata.distance field.

Authorization logic can be maintained within GraphQL operations using @auth directives and server-evaluated expressions like auth.uid and request.time. CEL expressions enable queries and mutations to define authorization rules with conditional logic and data referencing from other tables.

Firebase developers on Android can use the new quickstart sample app to learn how to integrate SQL Connect into Android applications. Additionally, the latest Firebase After Hours livestream featured a live demo and Q&A on Data Connect.

For secure production deployment, follow a three-layer defense-in-depth approach: enforce Firebase App Check & Attestation to protect against unauthorized replay and billing abuse, validate locally with the Firebase Emulator Suite to test deterministic integration against local Firestore, Auth, Functions, and Data Connect PostgreSQL emulators, and maintain type-safe server-client boundaries by using the modular Firebase Web SDK and generated TypeScript bindings.