Health endpoint customization in Spring Boot - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to enable the health endpoint in Spring Boot.

Spring Boot

@SpringBootApplication
public class Application {
    public static void main(String[] args) {
        SpringApplication.[1](args);
    }
}

Drag options to blanks, or click blank then click option'

Alaunch

Bstart

Crun

Dexecute

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'start' or 'launch' instead of 'run' causes errors.

The SpringApplication.run method starts the Spring Boot application.

2fill in blank

medium

Complete the code to expose the health endpoint in application.properties.

Spring Boot

management.endpoint.health.[1]=true

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Aenabled

Bshow

Cexpose

Dactivate

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'expose' or 'show' instead of 'enabled' will not work.

The property 'management.endpoint.health.enabled' enables the health endpoint.

3fill in blank

hard

Fix the error in this custom health indicator class by completing the missing annotation.

Spring Boot

import org.springframework.boot.actuate.health.Health;
import org.springframework.boot.actuate.health.HealthIndicator;
import org.springframework.stereotype.[1];

@[1]
public class CustomHealthIndicator implements HealthIndicator {
    @Override
    public Health health() {
        return Health.up().withDetail("status", "All systems go").build();
    }
}

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AService

BController

CRepository

DComponent

Attempts:

3 left

💡 Hint

Common Mistakes

Using @Service or @Controller will not register the health indicator correctly.

The @Component annotation registers the class as a Spring bean so it can be used as a health indicator.

4fill in blank

hard

Fill both blanks to customize the health endpoint path and enable detailed health info.

Spring Boot

management.endpoints.web.path-mapping.health=[1]
management.endpoint.health.show-details=[2]

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A/custom-health

Balways

Cnever

D/healthcheck

Attempts:

3 left

💡 Hint

Common Mistakes

Using '/healthcheck' for the path but 'never' for details hides info unintentionally.

Setting the path mapping changes the health endpoint URL, and 'always' shows detailed health info.

5fill in blank

hard

Fill all three blanks to create a custom health indicator that reports DOWN status with a message.

Spring Boot

import org.springframework.boot.actuate.health.Health;
import org.springframework.boot.actuate.health.HealthIndicator;
import org.springframework.stereotype.Component;

@Component
public class CustomDownHealthIndicator implements HealthIndicator {
    @Override
    public Health health() {
        return Health.[1]().withDetail("[2]", "[3]").build();
    }
}

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Adown

Berror

CDatabase connection failed

Dup

Attempts:

3 left

💡 Hint

Common Mistakes

Using Health.up() instead of Health.down() gives wrong status.

Health.down() sets the status to DOWN, with a detail key 'error' and a message explaining the problem.