Advanced Spring Boot Test 2

What is the purpose of @CacheEvict?

Which Spring Boot project is commonly used for declarative REST client communication between microservices?

What return type is recommended when using @Async to track completion?

What does this code snippet achieve?

S3Object s3Object = amazonS3.getObject("my-bucket", "file.txt");
InputStream inputStream = s3Object.getObjectContent();

What is the main advantage of using Testcontainers in Spring Boot tests?

Which pointcut expression matches all methods in all classes under com.app.repository package?

What does this method do?

@CacheEvict(value = "users", key = "#id")
public void deleteUser(Long id) {
    userRepository.deleteById(id);
}

What does this interface represent?

@FeignClient(name = "user-service")
public interface UserClient {
    @GetMapping("/users/{id}")
    User getUserById(@PathVariable Long id);
}

What is the role of @Scheduled in Spring Boot?

What is the role of AWS RDS in a Spring Boot application?

What does the following snippet configure?

@Testcontainers
public class UserRepositoryTest {

    @Container
    static PostgreSQLContainer<?> postgres =
        new PostgreSQLContainer<>("postgres:15-alpine");

}

What does this @Around advice do?

@Around("execution(* com.example.service.PaymentService.*(..))")
public Object logExecutionTime(ProceedingJoinPoint joinPoint) throws Throwable {
    long start = System.currentTimeMillis();
    Object result = joinPoint.proceed();
    long end = System.currentTimeMillis();
    System.out.println("Execution time: " + (end - start) + " ms");
    return result;
}

How does Spring Boot typically connect to Redis for caching?

In Spring Boot microservices, what is the main purpose of an API Gateway (e.g., Spring Cloud Gateway)?

How often will the below method execute?

@Scheduled(fixedRate = 5000)
public void task() {
    System.out.println("Running task...");
}

Given this application.properties, what is configured?

spring.datasource.url=jdbc:mysql://mydb.abcdef.us-east-1.rds.amazonaws.com:3306/mydb
spring.datasource.username=admin
spring.datasource.password=secret123

Which method is typically used to register Testcontainers database properties with Spring Boot during tests?

What is the purpose of this advice?

@AfterThrowing(
    pointcut = "execution(* com.example.service.OrderService.*(..))",
    throwing = "ex")
public void logException(Exception ex) {
    System.out.println("Exception caught: " + ex.getMessage());
}

What does this annotation do?

@CachePut(value = "users", key = "#user.id")
public User updateUser(User user) {
    return userRepository.save(user);
}

What does this configuration achieve?

spring:
  cloud:
    gateway:
      routes:
        - id: order-service
          uri: lb://order-service
          predicates:
            - Path=/orders/**