Step 1: Open pom. ...

Spring Boot Starter Actuator: It provides a lot of monitoring facilities around your services.

Spring Data Rest HAL Browser: HAL makes our API exportable, and its documentation easily discoverable from within the API itself.

Step 2: Restart the application. 

Spring Boot provides the actuator to monitor and manage applications effectively. It is a tool that has HTTP endpoints (the place where the resource lives). It is a sub-project of Spring Boot. It adds several production grade services to our application with less effort.

If the performance of a service goes down or failure, we should know the reason as quickly as possible. We need to build monitoring around the API, especially when we build microservices. Spring Boot has great support to provide monitoring.

To use the production-ready features, we will add spring-boot-actuator dependency in pom.xml.

Let's add monitoring service in our Spring Boot project.  

https://www.javatpoint.com/restful-web-services-spring-boot-actuator