better-auth-firebase-auth

import { createAuthOptions, createAuthMiddleware } from "better-auth/api"; import { firebaseAuthPlugin } from "better-auth-firebase-auth/server"; import { initializeApp, getApps, cert } from 'firebase-admin/app'; import { getAuth } from 'firebase-admin/auth'; import type { NextApiRequest, NextApiResponse } from 'next'; // Example for Next.js // Initialize Firebase Admin SDK (ensure FIREBASE_SERVICE_ACCOUNT_KEY is a parsed JSON string) if (!getApps().length) { try { const serviceAccountKey = process.env.FIREBASE_SERVICE_ACCOUNT_KEY; if (!serviceAccountKey) { throw new Error('FIREBASE_SERVICE_ACCOUNT_KEY environment variable is not set.'); } initializeApp({ credential: cert(JSON.parse(serviceAccountKey)), }); } catch (error) { console.error("Failed to initialize Firebase Admin SDK:", error); // In production, you might want to throw or exit if core services fail } } const firebaseAdminAuth = getAuth(); // Define Better Auth options with the Firebase plugin const authOptions = createAuthOptions({ secret: process.env.AUTH_SECRET ?? 'your-super-secret-fallback-key', // Set a strong secret in production env plugins: [ firebaseAuthPlugin({ firebaseAdminAuth, // Optional: Specify providers for Firebase Auth, e.g., Google, Email/Password providers: ['google', 'email'], // Optional: Customize session cookie options, callbacks, etc. sessionCookieName: '__session', cookieOptions: { secure: process.env.NODE_ENV === 'production', }, }), ], // Optional: Add an adapter for database persistence if needed (e.g., for user profiles) // adapter: YourDatabaseAdapter(), }); // Create the Better Auth middleware handler const handler = createAuthMiddleware(authOptions); // Example: Export the API route handler for a framework like Next.js export default async function betterAuthHandler(req: NextApiRequest, res: NextApiResponse) { await handler(req, res); } /* // For client-side integration in your frontend application (e.g., in _app.tsx or a layout component): // import { AuthProvider } from 'better-auth/client'; // import { firebaseAuthClientPlugin } from 'better-auth-firebase-auth/client'; // import { initializeApp } from 'firebase/app'; // import { getAuth } from 'firebase/auth'; // // const firebaseClientConfig = { // apiKey: process.env.NEXT_PUBLIC_FIREBASE_API_KEY ?? '', // authDomain: process.env.NEXT_PUBLIC_FIREBASE_AUTH_DOMAIN ?? '', // projectId: process.env.NEXT_PUBLIC_FIREBASE_PROJECT_ID ?? '', // // ... other client-side firebase config from your project settings // }; // // const firebaseClientApp = initializeApp(firebaseClientConfig); // const firebaseClientAuth = getAuth(firebaseClientApp); // // function MyRootAppComponent({ children }) { // return ( // <AuthProvider plugins={[firebaseAuthClientPlugin({ firebaseClientAuth })]}> // {children} // </AuthProvider> // ); // } */