Spring Boot FAQ: Top Questions

Creating REST APIs with Spring Boot is straightforward using annotations like @RestController, @GetMapping, @PostMapping, etc.

🗺️ Step-by-Step Instructions:

1. Create a class and annotate it with @RestController.
2. Add handler methods using request mapping annotations.
3. Start the application and access endpoints via browser or tools like Postman.

📥 Example Input:

@RestController
public class HelloController {
  @GetMapping("/hello")
  public String sayHello() {
    return "Hello, Spring Boot!";
  }
}

🏆 Expected Output:

Accessing /hello returns "Hello, Spring Boot!"

🛠️ Use Cases:

• Creating microservices.
• Exposing data to front-end apps.
• Handling HTTP requests and responses in backend services.