How to do it...

1. We will start by adding another dependency to our build.gradle file in order to add the spring-boot-starter-data-rest artifact:

dependencies { 
  ... 
  compile("org.springframework.boot:spring-boot-starter-data-rest") 
  ... 
} 

1. Now, let's create a new interface to define AuthorRepository in the src/main/java/com/example/bookpub/repository directory from the root of our project with the following content:

@RepositoryRestResource 
public interface AuthorRepository extends  
  PagingAndSortingRepository<Author, Long> { 
}

1. While we are at it—given how little code it takes—let's create the repository interfaces for the remaining entity models, PublisherRepository and ReviewerRepository by placing the files in the same package directory as AuthorRepository with the following content:

@RepositoryRestResource 
public interface PublisherRepository extends  
  PagingAndSortingRepository<Publisher, Long> { 
} 

Otherwise, you can use the following code instead of the preceding code:

@RepositoryRestResource 
public interface ReviewerRepository extends  
  PagingAndSortingRepository<Reviewer, Long> { 
} 

1. Start the application by running ./gradlew clean bootRun
2. After the application has started, open the browser and go to http://localhost:8080/authors and you should see the following response: