better-auth-firestore

import { betterAuth } from "better-auth"; import { firestoreAdapter, initFirestore } from "better-auth-firestore"; import { cert } from "firebase-admin/app"; import { getFirestore } from "firebase-admin/firestore"; // Also useful for direct Firestore access // Initialize Firebase Admin SDK for Firestore. // Ensure these environment variables are securely managed in production. const firestore = initFirestore({ credential: cert({ projectId: process.env.FIREBASE_PROJECT_ID ?? '', clientEmail: process.env.FIREBASE_CLIENT_EMAIL ?? '', privateKey: (process.env.FIREBASE_PRIVATE_KEY ?? '').replace(/\\n/g, "\n"), }), projectId: process.env.FIREBASE_PROJECT_ID ?? '', name: "better-auth" // Optional: name for the Firebase App instance }); // Configure Better Auth with the Firestore adapter. export const auth = betterAuth({ // Additional Better Auth configuration options would go here, // e.g., providers, callbacks, etc. secret: process.env.AUTH_SECRET ?? 'super-secret-key-for-development-only', // Required for Better Auth database: firestoreAdapter({ firestore, // Optional: Customize collection names if needed. // These are the default values if not specified: collections: { users: "users", sessions: "sessions", accounts: "accounts", verificationTokens: "verificationTokens" }, // Optional: Define a naming strategy for fields (e.g., 'default' or 'snake_case') namingStrategy: "default" }) }); // Example of how to access the initialized auth instance (e.g., in an API route) async function getUserSession(sessionId: string) { // In a real application, you would use `auth.getSession()` or similar // This is just to demonstrate the `auth` object is available. // const session = await auth.getSession({ req: someRequest }); // console.log("Session:", session); console.log(`Auth instance initialized with Firestore adapter and sessionId: ${sessionId}`); // You can also directly interact with Firestore via the 'firestore' object const userDoc = await firestore.collection('users').doc('someUserId').get(); if (userDoc.exists) { console.log("Example user data:", userDoc.data()); } } // Call the example function (for demonstration purposes, not part of actual quickstart) getUserSession('example-session-id-123');