📘 AuthNest — Full-Stack Authentication System

AuthNest is a secure, scalable authentication platform built with Spring Boot (Java) on the backend and React.js on the frontend. It supports JWT-based login, email verification, password reset, session handling, and responsive UI components — designed for modern web applications.

🚀 Features

🔐 JWT Authentication — Stateless login with secure token handling
📧 Email Verification — OTP-based email verification flow
🔁 Password Reset — Secure OTP + new password workflow
🧠 Session Persistence — Automatic login restoration via token
📦 React + Axios Frontend — Responsive UI with clean UX
🛡️ Spring Security Backend — Custom filters, entry points, and token validation
📨 Toast Notifications — Real-time feedback for all user actions

🧱 Tech Stack

Layer	Technology
Frontend	React, Axios, React Router, Toastify
Backend	Spring Boot, Spring Security, JWT
Database	MySQL
Email Service	SMTP(Brevo)

🧑‍💻 Setup Instructions

🔧 Backend (Spring Boot)

Clone the repo and navigate to /backend
Configure your DB and email credentials in application.properties
Run the app:
```
mvn spring-boot:run
```

🌐 Frontend (React)

Navigate to /frontend
Install dependencies:
```
npm install
```
Start the dev server:
```
npm run dev
```

🚀 Front Page

API Endpoints

POST /login — Authenticate user
POST /register — Create new account
POST /send-otp — Send email verification OTP
POST /verify-otp — Verify email OTP
POST /send-reset-otp — Send password reset OTP
POST /reset-password — Reset password
GET /profile — Fetch user profile
GET /is-authenticated — Check login status

🖼️ Authentication Flow Screenshots

🔍 Visualizing AuthNest in Action To demonstrate the secure and responsive behavior of AuthNest, below are screenshots capturing key user flows:

🔐 Login with JWT — Secure token-based authentication
📧 Email Verification — OTP input and validation
🔁 Password Reset — OTP + new password workflow
🧠 Session Persistence — Auto-login via stored token
📦 Frontend UI — Clean React interface with Toast notifications

🔐 Login with JWT

Secure token-based authentication with session persistence.

🆕 Create Account

User registration with email input and password setup.

📦 Account Dashboard Page

User name is visible

🔐 Reset Password Page

Email should be entered link to account

📧 Email Verification

OTP input screen for verifying user identity via email.

📬 Verification Email

Email sent to registered address containing OTP code.

🔁 Password Reset

OTP validation followed by new password input.

👤 Author

Hrishikesh
Full-stack developer passionate about building secure, scalable, and well-documented web applications.
Specialized in Spring Boot, React, and modern authentication flows.
Connect with me on LinkedIn

hrishikeshnerkar/Authentication-System-Springboot_React