ReactJs JWT Authentication example

#react #jwt #todayisearched #authentication

Full Article: https://bezkoder.com/react-jwt-auth/

In this tutorial, we're gonna build a Reactjs JWT Token Authentication: Login and Registration example (with Authorization) using LocalStorage, React Router, Axios and Bootstrap (without Redux). I will show you:

JWT Authentication Flow for User Signup & User Login
Project Structure for React JWT Authentication (without Redux) with LocalStorage, React Router & Axios
Creating React Components with Form Validation
React Components for accessing protected Resources (Authorization)
Dynamic Navigation Bar in React App

Note: The tutorial is for learning purpose. Better practice is to store JWT in HttpOnly cookie:
React.js Login & Registration example – JWT & HttpOnly Cookie

Or using Redux for state management:
React Redux: JWT Authentication & Authorization example

Overview of ReactJs JWT Authentication example

We will build a React application in that:

There are Login/Logout, Signup pages.
Form data will be validated by front-end before being sent to back-end.
Depending on User’s roles (admin, moderator, user), Navigation Bar changes its items automatically.

Here are the screenshots:
– Signup Page:

– Signup failed:

– Form Validation Support:

– Login Page:

– Profile Page (for successful Login):

– For Moderator account login, the navigation bar will change by authorities:

– Check Browser Local Storage:

User Registration and User Login Flow

For JWT Authentication, we’re gonna call 2 endpoints:

POST api/auth/signup for User Registration
POST api/auth/signin for User Login

The following flow shows you an overview of Requests and Responses that React Client will make or receive. This React Client must add a JWT to HTTP Header before sending request to protected resources.

You can find step by step to implement these back-end servers in following tutorial:

Demo Video

This is full React + Node.js Express JWT Authentication & Authorization demo (with form validation, check signup username/email duplicates, test authorization with 3 roles: Admin, Moderator, User):

Or React + Spring Boot JWT Authentication & Authorization demo:

ReactJs JWT Authentication Component Diagram

Let's look at the diagram below.

The App component is a container with React Router (BrowserRouter). Basing on the state, the navbar can display its items.
Login & Register components have form for data submission (with support of react-validation library). They call methods from auth.service to make login/register request.
auth.service methods use axios to make HTTP requests. Its also store or get JWT from Browser Local Storage inside these methods.
Home component is public for all visitor.
Profile component displays user information after the login action is successful.
BoardUser, BoardModerator, BoardAdmin components will be displayed by state user.roles. In these components, we use user.service to access protected resources from Web API.
user.service uses auth-header() helper function to add JWT to HTTP header. auth-header() returns an object containing the JWT of the currently logged in user from Local Storage.

Project Structure

This is folders & files structure for this React application:

For more details, implementation and Github, please visit:
https://bezkoder.com/react-jwt-auth/

Note: The tutorial is for learning purpose. Better practice is to store JWT in HttpOnly cookie:
React.js Login & Registration example – JWT & HttpOnly Cookie

Or using Redux for state management:
React Redux: JWT Authentication & Authorization example