Create a new domain class called User inside the grails-app/domain folder.

class User {

  String name

  static constraints = {
  }
}

Create a new service for the User class. We will implement the getAll method that returns all the users from the database and the add method that stores a new user in the database. The following screenshot shows how to make the service in Eclipse:

Now type the name of the domain class we want to make the service for.

The following code shows what has been generated by the Grails framework. Add the getAll and add methods into the UserService class.

class...