Next.js MERN Stack AI App 2026: SaaS Directory Website

Install and verify the complete project environment for a Next.js app, including VSCode, Node.js with npm, local MongoDB, MongoDB compass, and wiring frontend and backend with mongoose and material UI.

Set up a Next.js project, a React-based framework for full-stack apps with SSR and routing. Initialize with create next app, install mongoose and Material UI, then run on localhost.

Build a responsive top navbar in React using Material UI, wiring bar, box, toolbar, typography, icon button and avatar components with next/navigation routing and client rendering.

Build a navbar in React with Material-UI, featuring typography and icon buttons for phone and email on left, and a login button on right linked to login page.

Build a Nova top navigation using material ui components (bar, toolbar, box, button) with Next.js links, applying a flex layout for home, blog, about, package, and contact routes.

Create a register page in the app directory using listing template styles and global css, with an auth container, form sections, and social login buttons (Google, Facebook, Apple, PayPal).

Create an animated register form in a Next.js app using framer motion for transitions, with material UI components, icons, and toast notifications for success messages.

Create a register page with full name, address, email, password, and confirm password using a single form state and handleChange; implement password visibility toggles and Next.js router navigation to login.

The lecture demonstrates frontend validation and post requests to a next.js backend registration API to save user data, enforce password match, and require terms acceptance.

Create a user model with a mongoose schema including name, email, image, password, and a role enum (user, admin, agent) and export the model for the user collection.

Create the env file in your app and define db uri, api endpoint, and cloudinary and google keys. Export these values to be imported by config.js for Next.js.

Configure environment variables and the central config for a next.js node full-stack app, defining MongoDB connections, cloudinary domains, and api keys for google and nextauth.

Connects to MongoDB with a robust db connect utility, checks for existing users by email, hashes passwords, and saves new users, returning success or error messages and redirecting after registration.

This lecture guides building a Next.js login page with a styled form, email and password fields, password visibility toggle, and initial NextAuth integration for credential and Google sign-in.

This lecture guides configuring next auth with the credentials provider, handling sign-in via email and password from the login page, managing errors and redirects, and finalizing with success messages.

Configure next-auth with credentials and Google providers to enable email-password login and sign-in. Connect to MongoDB, implement bcrypt password checks, and manage jwt sessions with Google client IDs and secrets.

Set up next-auth in a Next.js API, configure auth options, and implement credential-based login. Redirect users by role to their respective dashboards.

Implement role-based redirects in a Next.js app using NextAuth sessions to navigate users to admin, user, or agent dashboards, with middleware protection.

protect routes with middleware in a next.js app by configuring a middleware file, importing next auth, and applying role-based redirects for user, admin, and agent paths.

Implement login with Google using next auth providers by configuring Google client ID and secret, updating env, restarting the server, and creating or loading user data from the database.

Set up a Next.js client-side user dashboard with vertical tabs, rendering the dashboard content in a tab panel and wiring left navigation to display profile, password, and logout views.

Implement an active tab in a Next.js app by persisting the selected tab with local storage, initializing dynamically from get item and route changes with useEffect.

Create a logout page component under dashboard/users/logout that signs out via next-auth and redirects users to the login page using the router.

Create the user profile component within the dashboard in a Next.js app, implement personal info and profile image uploads, and manage session data with a client component.

Implement a profile update api endpoint in a Next.js and Node app, handle frontend requests, authenticate with server sessions, update MongoDB, and return status messages.

Create a user profile image upload component that uploads photos to Cloudinary with API keys, retrieves the image URL, and saves it to the database.

Build a custom hook for profile image upload and preview with React useState and Cloudinary, handling image file, preview, loading state, and errors.

Defines a cloudinary image upload utility for a Next.js app, validates file type and size, handles file input and preview, uploads to Cloudinary, and returns the secure URL.

Build a change password page with a dedicated component, including old/new/confirm fields, client-side validation, and a secure server request using a token-based API.

Build a change password API endpoint in Next.js with JWT authentication, bcrypt password verification, and MongoDB integration for secure password updates.

Fix hydration mismatch in a next.js app by using an isMounted flag with useEffect, returning null until mounted, and diagnosing server‑client differences that trigger hydration errors.

Set up an admin dashboard in a Next.js project by building the admin layout with a sidebar and footer, enabling login, role changes, and navigation to admin pages.

Render static analytics in the admin dashboard by wiring analytics and donut chart components, installing and configuring chart.js libraries, and downgrading material UI for proper visuals.

Implement admin profile management with update capabilities, including name and picture, while keeping email immutable, and enable secure password changes and logout through protected API endpoints.