Contact-list that provides its data via REST-interface.

Goals of this assignment:

• Understand how to add a REST-interface to your server.

First steps with the RestController

1. Write a REST-Interface that allows to get all contacts
2. Test the interface using Postman (or a similar tool)
3. Extend the REST-Interface to get a single contact by ID

1. Write an integration tests for the REST-interface from assignment 1

1. Add the possibility to search for a contact by name via the REST-interface
   • The required functionality is already provided in ContactService
2. Write a simple integration test for the new functionality

1. Extend the REST-interface with possibilities to create, update, and delete contacts
   • Which HTTP status code should be returned if a resource cannot be found?
   • Which one should be returned if a resource is created?