Add project files.

SytelineSaAppEfDataModel/Services/IEdiCustomerOrderService.cs

@@ -0,0 +1,17 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using SytelineSaAppEfDataModel.Dtos;
+
+namespace SytelineSaAppEfDataModel.Services
+{
+    public interface IEdiCustomerOrderService
+    {
+        Task<IEnumerable<EdiCustomerOrderDto>> GetAll();
+        Task<IEnumerable<EdiCustomerOrderDto?>> GetByDate(DateTime date);
+        Task<EdiCustomerOrderDto?> GetByOrderNumber(string orderNumber);
+        Task<int> SendOrderToSyteline(string customerOrderNumber);
+    }
+}