Building a RESTful API with Java Spring Boot and JWT Authentication
A Spring Boot RESTful API is a web service built using the Spring Boot framework that follows REST (Representational State Transfer) architectural principles. It exposes endpoints over HTTP to perform CRUD : Create, Read, Update, Delete operations on resources such as data entities (e.g. models, books, products, items, users ). Spring Boot uses annotations like @Component , @Entity , @Repository , @Controller , @Service . Main Application @SpringBootApplication public class JwtReimbursementApplication { public static void main(String[] args) { SpringApplication.run(JwtReimbursementApplication.class, args); System.out.println("Application Starts..!"); } } Model Class @Entity public class ReimbursementModel { @Id @GeneratedValue(strategy = GenerationType.IDENTITY) private int id; @Column(unique = true) private String employeeName; int employeeNumber; String productType; String productName; String productPro...