Master Microservices with Spring Boot and Spring Cloud - Step 03 – Creating a Hello World Service

The video tutorial explains how to create a simple REST controller in Spring that returns a hardcoded 'Hello World' text. It covers the creation of a new class, defining methods and URIs, and mapping GET requests using annotations. The tutorial also introduces the use of the GetMapping annotation to simplify request mapping, making the code more readable and concise.

What is the primary purpose of the HelloWorldController class introduced in the video?

• To manage user authentication

• To return a hardcoded text as a response

• To perform complex calculations

• To handle database operations

Which HTTP method is used in the HelloWorldController to return the 'Hello World' text?

• PUT

• POST

• GET

• DELETE

What annotation is used to inform Spring that a class is a REST controller?

• @Component

• @Repository

• @RestController

• @Service

What is the advantage of using the @GetMapping annotation over @RequestMapping?

• It is the only way to map URIs

• It allows for more complex configurations

• It supports more HTTP methods

• It is shorter and easier to read

Which of the following is NOT a mapping annotation mentioned in the video?

• @DeleteMapping

• @PostMapping

• @PutMapping

• @GetMapping