Add basic authentication using Firebase Auth

.gitignore

@@ -1,2 +1,3 @@
 node_modules
-.env
+.env
+serviceAccountKey.json

global.ts

@@ -3,6 +3,13 @@ import { z } from "zod";
 const envVariables = z.object({
   DATABASE_URL: z.string(),
   JWT_SECRET: z.string(),
+  PORT: z.string(),
+  FIREBASE_API_KEY: z.string(),
+  FIREBASE_AUTH_DOMAIN: z.string(),
+  FIREBASE_PROJECT_ID: z.string(),
+  FIREBASE_STORAGE_BUCKET: z.string(),
+  FIREBASE_MESSAGING_SENDER_ID: z.string(),
+  FIREBASE_APP_ID: z.string(),
 });
 
 envVariables.parse(process.env);

package.json

@@ -4,6 +4,7 @@
   },
   "dependencies": {
     "@prisma/client": "5.13.0",
+    "firebase": "^10.12.2",
     "firebase-admin": "^12.2.0",
     "hono": "^4.3.4",
     "zod": "^3.23.6"

src/firebase.ts

@@ -1,3 +1,35 @@
-import { initializeApp } from "firebase-admin";
+import { initializeApp } from "firebase/app";
+import admin, { ServiceAccount } from "firebase-admin";
+import serviceAccount from "../serviceAccountKey.json";
+import {
+  getAuth,
+  createUserWithEmailAndPassword,
+  signInWithEmailAndPassword,
+  signOut,
+  sendEmailVerification,
+  sendPasswordResetEmail,
+} from "firebase/auth";
 
-export const firebase = initializeApp();
+const firebaseConfig = {
+  apiKey: process.env.FIREBASE_API_KEY,
+  authDomain: process.env.FIREBASE_AUTH_DOMAIN,
+  projectId: process.env.FIREBASE_PROJECT_ID,
+  storageBucket: process.env.FIREBASE_STORAGE_BUCKET,
+  messagingSenderId: process.env.FIREBASE_MESSAGING_SENDER_ID,
+  appId: process.env.FIREBASE_APP_ID,
+};
+
+const firebase = initializeApp(firebaseConfig);
+const firebaseAdmin = admin.initializeApp({
+  credential: admin.credential.cert(serviceAccount as ServiceAccount),
+});
+
+export {
+  getAuth,
+  createUserWithEmailAndPassword,
+  sendEmailVerification,
+  sendPasswordResetEmail,
+  signInWithEmailAndPassword,
+  signOut,
+  firebaseAdmin,
+};