Next.js 14

1. Introduction

Let's discuss what you need to learn before diving into the Next.js framework, what to expect from this course, and what you'll build.

Welcome

Project Overview

Course Prerequisites

How the Course Works

2. Basic Concepts

We will set up the project, inspect ways to add styling to our app and cover visual aspects such as images, fonts, pages, and layouts.

Project Set Up

Project File-Folder Strcture

Styling Approaches

Adding the Global CSS File

Tailwind Styling

CSS Modules

Conditionally Applying Styles

Custom Google Fonts

Challenge: Adding Custom Google Font

Images

3. Pages and Layouts

Learn how to easily create and manage a new view for your app and navigate through all pages seamlessly with an incorporated routing system.

How Routing Works

Challenge: Creating Page

Creating a Common Layout

Navigation Optimization

Creating Active Links

4. Deployment and Database

Deploy the Next.js app using GitHub and Vercel accounts. Additionally, establish a database to supply the app with the necessary data.

5. Working with Data

Consider how to obtain and show data to the user clearly and efficiently.

How to Fetch Data

Working with the Dashboard Page

Practice and Challenge: Retrieving Data

Dynamic vs Static Rendering

Loaders

Specific Parts Loaders

Challenge: Skeleton Loader

Grouping Components for Loaders

6. Advanced Features

Discover how to implement modern web features such as pagination, CRUD operations, global search, form validation, and more.

Challenge: Form Validation

7. Authentication

Authentication implementation in Next.js.

Understanding Authentication

NextAuth.js

Authentication Configuration & Route Protection

Password Hashing & Credentials

Sign-in Functionality

Connecting UI & Functionality

Logout Functionality

What's Next?

Authentication Configuration & Route Protection

Back to the Project

1. Adding Custom Sign-in Page

Create an auth.config.ts file at the project root with this content:

auth.config.ts

import type { NextAuthConfig } from 'next-auth';

export const authConfig = {
  pages: {
    signIn: '/login',
  },
};

This specifies a custom sign-in page route (/login) using the pages option.

2. Protecting Routes with Middleware

Extend auth.config.ts to include route protection logic. Users are redirected to the login page if they try to access the dashboard without being logged in.

auth.config.ts

import type { NextAuthConfig } from 'next-auth';

export const authConfig = {
  pages: {
    signIn: '/login',
  },
  callbacks: {
    authorized({ auth, request: { nextUrl } }) {
      const isLoggedIn = !!auth?.user;
      const isOnDashboard = nextUrl.pathname.startsWith('/dashboard');
      if (isOnDashboard) {
        if (isLoggedIn) return true;
        return false; // Redirect unauthenticated users to login page
      } else if (isLoggedIn) {
        return Response.redirect(new URL('/dashboard', nextUrl));
      }
      return true;
    },
  },
  providers: [], // Add providers with an empty array for now
} satisfies NextAuthConfig;

3. Middleware

Create a middleware.ts file to initialize NextAuth.js and protect routes using the specified configuration.

middleware.ts

import NextAuth from 'next-auth';
import { authConfig } from './auth.config';

export default NextAuth(authConfig).auth;

export const config = {
  // https://nextjs.org/docs/app/building-your-application/routing/middleware#matcher
  matcher: ['/((?!api|_next/static|_next/image|.*\\.png$).*)'],
};

We set up a custom sign-in page and added logic to protect routes. The Middleware ensures that protected routes won't render until authentication is verified, improving both security and performance.

In Practice

Everything was clear?

Section 7. Chapter 4

Course Content

Next.js 14

1. Introduction

Welcome Project Overview Course Prerequisites How the Course Works

2. Basic Concepts

Project Set Up Project File-Folder Strcture Styling Approaches Adding the Global CSS File Tailwind Styling CSS Modules Conditionally Applying Styles Custom Google Fonts Challenge: Adding Custom Google Font Images

3. Pages and Layouts

How Routing Works Challenge: Creating Page Creating a Common Layout Navigation Optimization Creating Active Links

4. Deployment and Database

Accounts Set Up Project Deployment Project Database Data Population

5. Working with Data

How to Fetch Data Working with the Dashboard Page Practice and Challenge: Retrieving Data Dynamic vs Static Rendering Loaders Specific Parts Loaders Challenge: Skeleton Loader Grouping Components for Loaders

6. Advanced Features

Invoices Page Search Functionality Pagination Server Actions Creating Item Updating Item Deleting Item Challenge: Form Validation

7. Authentication

Understanding Authentication Login Route NextAuth.js Authentication Configuration & Route Protection Password Hashing & Credentials Sign-in Functionality Connecting UI & Functionality Logout Functionality What's Next?

Next.js 14

Authentication Configuration & Route Protection

Back to the Project

1. Adding Custom Sign-in Page

Create an auth.config.ts file at the project root with this content:

auth.config.ts

import type { NextAuthConfig } from 'next-auth';

export const authConfig = {
  pages: {
    signIn: '/login',
  },
};

This specifies a custom sign-in page route (/login) using the pages option.

2. Protecting Routes with Middleware

Extend auth.config.ts to include route protection logic. Users are redirected to the login page if they try to access the dashboard without being logged in.

auth.config.ts

import type { NextAuthConfig } from 'next-auth';

export const authConfig = {
  pages: {
    signIn: '/login',
  },
  callbacks: {
    authorized({ auth, request: { nextUrl } }) {
      const isLoggedIn = !!auth?.user;
      const isOnDashboard = nextUrl.pathname.startsWith('/dashboard');
      if (isOnDashboard) {
        if (isLoggedIn) return true;
        return false; // Redirect unauthenticated users to login page
      } else if (isLoggedIn) {
        return Response.redirect(new URL('/dashboard', nextUrl));
      }
      return true;
    },
  },
  providers: [], // Add providers with an empty array for now
} satisfies NextAuthConfig;

3. Middleware

Create a middleware.ts file to initialize NextAuth.js and protect routes using the specified configuration.

middleware.ts

import NextAuth from 'next-auth';
import { authConfig } from './auth.config';

export default NextAuth(authConfig).auth;

export const config = {
  // https://nextjs.org/docs/app/building-your-application/routing/middleware#matcher
  matcher: ['/((?!api|_next/static|_next/image|.*\\.png$).*)'],
};

We set up a custom sign-in page and added logic to protect routes. The Middleware ensures that protected routes won't render until authentication is verified, improving both security and performance.

In Practice

Everything was clear?

Section 7. Chapter 4