db authentication replaced by Google

app/lib/auth.config.google.ts

@@ -0,0 +1,29 @@
+import NextAuth, { NextAuthConfig } from 'next-auth';
+import GoogleProvider from 'next-auth/providers/google';
+
+export const authConfig:NextAuthConfig = {
+callbacks: {
+   async signIn({ account, profile }) {
+      if (account?.provider === "google") {
+         return profile?.email_verified === true && profile?.email?.endsWith("@google.com") === true
+      }
+      return true // Do different verification for other providers that don't have `email_verified`
+   },
+  authorized({ auth, request: { nextUrl } }) {
+     const isLoggedIn = !!auth?.user;
+     return(isLoggedIn);
+  },
+},
+ providers: [
+  GoogleProvider({
+   clientId: process.env.GOOGLE_ID,
+   clientSecret: process.env.GOOGLE_SECRET,
+  }),
+ ],
+ session: {
+    // Use JSON Web Tokens for session instead of database sessions.
+    // This option can be used with or without a database for users/accounts.
+    // Note: `jwt` is automatically set to `true` if no database is specified.
+    strategy: 'jwt'
+ },
+};

app/lib/auth.google.ts

@@ -0,0 +1,29 @@
+import NextAuth, { NextAuthConfig } from 'next-auth';
+import GoogleProvider from 'next-auth/providers/google';
+
+const authConfig: NextAuthConfig = {
+   callbacks: {
+      // This method verifies if the user is logged in or not
+      // It is called by Next-Auth when the midleware calls
+      // the `auth` method (exported below)
+      authorized({ auth, request: { nextUrl } }) {
+         const isLoggedIn = !!auth?.user;
+         return (isLoggedIn);
+      },
+   },
+   providers: [
+      GoogleProvider({
+         clientId: process.env.GOOGLE_ID,
+         clientSecret: process.env.GOOGLE_SECRET,
+      }),
+   ],
+   secret: process.env.AUTH_SECRET,
+   session: {
+      // Use JSON Web Tokens for session instead of database sessions.
+      // This option can be used with or without a database for users/accounts.
+      // Note: `jwt` is automatically set to `true` if no database is specified.
+      strategy: 'jwt'
+   },
+};
+
+export const { auth, handlers: { GET, POST } } = NextAuth(authConfig);

app/lib/loginActions.ts

@@ -1,23 +0,0 @@
-'use server';
-
-import { signIn } from '@/auth';
-import { AuthError } from 'next-auth';
-
-export async function authenticate(
-    prevState: string | undefined,
-    formData: FormData,
-  ) {
-    try {
-      await signIn('credentials', formData);
-    } catch (error) {
-      if (error instanceof AuthError) {
-        switch (error.type) {
-          case 'CredentialsSignin':
-            return 'Invalid credentials.';
-          default:
-            return 'Something went wrong.';
-        }
-      }
-      throw error;
-    }
-  }