FaKrosnoApi/Controllers/EdiCustomerOrdersController.cs

@@ -30,6 +30,13 @@ namespace FaKrosnoApi.Controllers
             return scheduleOrder != null ? Ok(scheduleOrder) : NotFound();
         }
 
+        [HttpGet("last-order-number")]
+        public async Task<ActionResult<int>> GetLastOrderNumber()
+        {
+            int lastOrderNumber = await service.GetLastOrderNumber();
+            return Ok(lastOrderNumber);
+        }
+
         [HttpPost("send-to-syteline")]
         public async Task<ActionResult<int>> SendOrderToSyteline([FromQuery] Guid customerOrderNumber)
         {

SytelineSaAppEfDataModel/Services/EdiCustomerOrderService.cs

@@ -9,6 +9,15 @@ namespace SytelineSaAppEfDataModel.Services
 {
     public class EdiCustomerOrderService(SytelineSaAppDbContext context, IMapper mapper) : IEdiCustomerOrderService
     {
+        public async Task<int> GetLastOrderNumber()
+        {
+            var lastOrderNumber =
+                (await context.EdiCustomerOrders.OrderByDescending(x => x.CustomerOrderNumber).FirstOrDefaultAsync())
+                ?.CustomerOrderNumber[3..] ?? "0";
+
+            return int.Parse(lastOrderNumber);
+        }
+        
         public async Task<IEnumerable<EdiCustomerOrderDto>> GetAll()
         {
             IList<EdiCustomerOrderTranslateDto> ediCustomerOrderTranslates = await context.EdiCustomerOrderTranslates

SytelineSaAppEfDataModel/Services/IEdiCustomerOrderService.cs

@@ -9,6 +9,7 @@ namespace SytelineSaAppEfDataModel.Services
 {
     public interface IEdiCustomerOrderService
     {
+        Task<int> GetLastOrderNumber();
         Task<IEnumerable<EdiCustomerOrderDto>> GetAll();
         Task<IEnumerable<EdiCustomerOrderDto?>> GetByDate(DateTime date);
         Task<EdiCustomerOrderDto?> GetByOrderNumber(Guid orderNumber);