GetCustomerInvoiceController.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Net.Http;
using System.Web.Http;
using TeamDBAwesome.SqlService;
using TeamDBAwesome.Models;
using Newtonsoft.Json;

namespace TeamDBAwesome.Controllers
{
    public class GetCustomerInvoiceController : ApiController
    {
        public HttpResponseMessage Get(int custId)
        {
            HttpResponseMessage message = new HttpResponseMessage(HttpStatusCode.OK);

            MySqlService sql = new MySqlService();

            List<Invoice> invoiceList = sql.getInvoices(custId);

            string serialized = JsonConvert.SerializeObject(invoiceList);

            message.Content = new StringContent(serialized);

            return message;
        }
    }
}