// GET: api/Employees
        public async Task <String> Get()
        {
            string employeesJson = await client.GetEmployees();

            List <AbstractEmployee> employees = new List <AbstractEmployee>();

            List <RawEmployee> rawEmployees = JsonConvert.DeserializeObject <List <RawEmployee> >(employeesJson);

            foreach (RawEmployee rawEmployee in rawEmployees)
            {
                AbstractEmployee employee = factory.BuildEmployee(rawEmployee);

                employees.Add(employee);
            }

            return(JsonConvert.SerializeObject(employees));
        }