In modern web applications, file upload functionality serves as a critical component for various use cases. This article demonstrates how to implement a robust and secure file upload service using Spring Boot, handling batch uploads, JWT-based authentication, and persistent storage. Service Implemen...
Core Technology Stack The backend infrastructure relies on Spring Boot, which encapsulates embedded servlet containers such as Tomcat and Undertow. This eliminates manual server deployment steps. Auto-configuration mechanisms automatically resolve dependencies, allowing developers to focus on busine...
Backend JWT Authentication Setup Install jsonwebtokan dependency first: npm install jsonwebtoken --save Generate JWT on successful login Add login endpoint handler in user route file: const jwt = require('jsonwebtoken'); const bcrypt = require('bcryptjs'); router.post('/api/user/login', async (req,...