Login and Signup form tutorial in Next.js | Nodes js, express and MongoDB | Next.js 13 tutorial 2023

Welcome and Introduction to Next.js

In this section, the speaker introduces Next.js as a popular JavaScript framework and discusses its advantages over React.

Introduction to Next.js

• Next.js is a popular framework of the React ecosystem, making React development easier.

• It offers additional features beyond React, enhancing its popularity among developers.

Setting Up Next.js for Login/Sign-up Form

This part covers the initial setup process for creating a login/sign-up form in Next.js.

Installation Process

• Install Next.js by running npx create-next-app command.

• Configure installation settings like TypeScript, ESLint, Tailwind CSS, app router, etc., during the setup process.

Adding Dependencies for Backend Development

Here, the speaker discusses adding necessary dependencies for backend development in Next.js.

Installing Dependencies

• Install MongoDB, Mongoose (for database connection), Node.js, React Icons, and next-auth for Google login functionality.

Setting Up Database Connection

This segment focuses on establishing a database connection in the backend of the application.

Database Configuration

• Create a utils folder with a database.js file to connect the app to MongoDB using Mongoose commands.

• Implement error handling and ensure proper connection status checks within the database configuration code.

Defining Data Model for User Information

The speaker explains how to define a data model for user information within the application.

User Data Schema

• Define a user schema including fields like name and email with specified data types and requirements.

New Section

In this section, the speaker discusses the structure of the user collection in a database and outlines the process of writing code for user.js.

User Collection Structure

• The "user" represents the name of the collection in the database.

• All data will be stored inside this "user" collection.

Folder Structure and Component Creation

This part focuses on creating folders, specifically components, and developing an auth provider component with necessary code snippets.

Folder Creation and Auth Provider Component

• Create a "components" folder.

• Inside, create "authProvider.js" to write code utilizing React features like useState.

• Import session provider from next-auth/react for authentication functionalities.

• Define an "authProvider" function with arguments to return HTML terms within a div.

API Folder Setup

Setting up API folders within the app directory is discussed here, along with creating specific subfolders for handling authentication-related tasks.

API Folder Configuration

• Create an "API" folder within the app directory.

• Inside "API," establish an "auth" folder followed by another nested folder named "[...nextauth]" for dynamic routing.

• Develop a file named "root.js" within "[...nextauth]" to manage backend user data effectively.

• Leave it empty temporarily and focus on customizing page.js for login form integration.

Login Form Design and Functionality

Enhancing website functionality by adding a login form design using Google authentication as demonstrated in this segment.

Login Form Integration

• Remove existing content to add a simple login form with Google login functionality.

• Include a button labeled as 'Log in with Google' for streamlined access using Nexus technology.

• Customize design elements such as background color through CSS modifications in globals.css file.

• Integrate Google icons into buttons for visual appeal and enhanced user experience.

New Section

In this section, the speaker discusses setting up authentication using NextAuth.js with Google as a provider.

Setting Up Authentication with NextAuth.js

• The speaker creates a function named Handler and specifies 'next-auth' as an argument, defining providers within an array.

• Google is chosen as the provider, requiring client ID and client Secret to be set in a .env file for security.

• The .env file stores sensitive data like Google ID and secret, accessed using process.env.

• Retrieving Google ID and secret from process.env ensures secure handling of sensitive information.

• Additional configurations involve setting up callbacks object with async session and sign-in functions.

New Section

This part focuses on implementing session and sign-in functionalities within the authentication setup.

Implementing Session and Sign-In Functions

• Defining a session function that returns 'session' after processing.

• Creating an async sign-in function that handles user credentials securely.

• Connecting to the database before checking if the user already exists to prevent duplicate entries.

• Checking for existing users in the database before inserting new user data securely.

New Section

Here, the speaker finalizes the login form setup and directs users to the home page upon successful login.

Finalizing Login Form Setup

• Inserting user data into the database if it doesn't already exist based on email verification.

• Creating a homepage component to redirect authenticated users appropriately.

• Integrating auth provider into layout.js for consistent application across pages.

New Section

This segment covers integrating session management into HTML elements for seamless authentication flow.

Integrating Session Management

• Importing session module to manage user sessions effectively within HTML elements.

Setting Up a New Project

In this section, the speaker demonstrates how to set up a new project by creating credentials and configuring the application type.

Creating a New Project

• Switch to a new account to create a new project.

• Access the project menu, navigate to API services, and create credentials for OAuth.

• Specify details like web application name and authorized redirect URL for the credentials.

Implementing Login Functionality

This part focuses on implementing login functionality in the project using Next.js.

Adding Login Functionality

• Copy client ID and client secret into the application.

• Ensure proper configuration in root JS file for handling GET and POST requests.

Database Interaction and Redirection

The speaker discusses database interaction, data storage, and page redirection after successful login.

Database Operations

• Check database entries after logging in with different email IDs.

• Uncomment redirection code to direct users to the home page post-login.

Finalizing Login Form

Concluding remarks on finalizing the login form setup in Next.js.

Final Touches