🚀 *Exception Handling in Spring Boot REST API | @ExceptionHandler*

In this video, as part of the **Spring Boot Beginner to Advanced series**, we’ll learn how to handle exceptions properly in a Spring Boot REST API.

Instead of allowing exceptions to produce unclear error responses, we’ll create a *custom exception* and handle it using `@ExceptionHandler`.

📌 In this video, you’ll learn:

✅ What is an Exception?
✅ What happens when an exception occurs in a REST API?
✅ What is a Custom Exception?
✅ Creating `UserNotFoundException`
✅ Throwing a custom exception from the Service layer
✅ Understanding `@ExceptionHandler`
✅ Returning proper HTTP status codes
✅ Returning a custom error response
✅ Handling `404 NOT FOUND` scenarios
✅ Using `ResponseEntity` with exception handling

🔥 Practical Example

We’ll build a simple User REST API:

```text
Client
  ↓
Controller
  ↓
Service
  ↓
User Not Found
  ↓
UserNotFoundException
  ↓
@ExceptionHandler
  ↓
404 NOT FOUND
```

Example error response:

```json
{
 "status": 404,
 "message": "User with id 10 not found"
}
```

This video prepares you for the next important topic:

👉 *Global Exception Handling using `@ControllerAdvice`*

If you're following the complete *Spring Boot Beginner to Advanced series**, make sure to **Subscribe to TechWithSravan* and follow the upcoming videos.

🔗 Topics covered

Spring Boot | REST API | Exception Handling | @ExceptionHandler | Custom Exception | ResponseEntity | HTTP Status Codes | UserNotFoundException | Java

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