diff --git a/src/ApiClient/Http/HttpSmsClient.cs b/src/ApiClient/Http/HttpSmsClient.cs
index 6ed5bfb..67a385c 100644
--- a/src/ApiClient/Http/HttpSmsClient.cs
+++ b/src/ApiClient/Http/HttpSmsClient.cs
@@ -38,9 +38,11 @@ public sealed class HttpSmsClient : ISmsClient, IDisposable
     {
         var request = new SendOrderApiRequest
         {
-            CommandParameters = new SendOrderParameters(
-                order.Id.ToString(),
-                order.Items.ToList()),
+            CommandParameters = new SendOrderParameters
+            {
+                OrderId = order.Id.ToString(),
+                MenuItems = order.Items.ToList(),
+            },
         };
 
         var response = await SendAsync(request, cancellationToken);
@@ -66,7 +68,30 @@ public sealed class HttpSmsClient : ISmsClient, IDisposable
         }
 
         var responseJson = await httpResponse.Content.ReadAsStringAsync(cancellationToken);
-        return ApiResponseDeserializer.Deserialize(responseJson);
+
+        if (string.IsNullOrWhiteSpace(responseJson))
+        {
+            return new ApiResponse
+            {
+                Command = request.Command,
+                Success = false,
+                ErrorMessage = $"Пустой ответ сервера (HTTP {(int)httpResponse.StatusCode}).",
+            };
+        }
+
+        try
+        {
+            return ApiResponseDeserializer.Deserialize(responseJson);
+        }
+        catch (JsonException)
+        {
+            return new ApiResponse
+            {
+                Command = request.Command,
+                Success = false,
+                ErrorMessage = $"Некорректный JSON в ответе (HTTP {(int)httpResponse.StatusCode}): {responseJson}",
+            };
+        }
     }
 
     private static GetMenuApiResponse ToGetMenuResponse(ApiResponse response) =>
diff --git a/src/ApiServer/Controllers/ApiController.cs b/src/ApiServer/Controllers/ApiController.cs
index b718e6c..3a740b1 100644
--- a/src/ApiServer/Controllers/ApiController.cs
+++ b/src/ApiServer/Controllers/ApiController.cs
@@ -31,6 +31,15 @@ public sealed class ApiController(ISmsApiService apiService) : ControllerBase
                 ErrorMessage = $"Некорректный JSON: {ex.Message}",
             });
         }
+        catch (Exception ex)
+        {
+            return Ok(new ApiResponse
+            {
+                Command = "",
+                Success = false,
+                ErrorMessage = ex.Message,
+            });
+        }
 
         return Ok(apiService.Handle(request));
     }
diff --git a/src/ApiServer/Services/SmsApiService.cs b/src/ApiServer/Services/SmsApiService.cs
index 11d3ee9..bf9d877 100644
--- a/src/ApiServer/Services/SmsApiService.cs
+++ b/src/ApiServer/Services/SmsApiService.cs
@@ -39,7 +39,7 @@ internal sealed class SmsApiService(IMenuStore store) : ISmsApiService
             return FailSendOrder("CommandParameters не указаны или имеют неверный формат.");
         }
 
-        var items = parameters.MenuItems
+        var items = (parameters.MenuItems ?? [])
             .Select(item => (item.Id, item.Quantity))
             .ToList();
 
diff --git a/src/Console/appsettings.json b/src/Console/appsettings.json
index 9c5a074..019ddd3 100644
--- a/src/Console/appsettings.json
+++ b/src/Console/appsettings.json
@@ -3,7 +3,7 @@
     "Default": "Host=localhost;Port=5432;Database=sms_task;Username=sms;Password=sms"
   },
   "ApiClient": {
-    "Backend": "Grpc"
+    "Backend": "Http"
   },
   "Http": {
     "BaseUrl": "http://localhost:5053",
diff --git a/src/Contracts/Menu/GetMenuData.cs b/src/Contracts/Menu/GetMenuData.cs
index 5da530d..7137079 100644
--- a/src/Contracts/Menu/GetMenuData.cs
+++ b/src/Contracts/Menu/GetMenuData.cs
@@ -2,12 +2,9 @@ using Domain.Entities;
 
 namespace Contracts.Menu;
 
-public sealed record GetMenuData(IReadOnlyList<Dish> MenuItems)
+public sealed record GetMenuData
 {
-    public GetMenuData()
-        : this([])
-    {
-    }
+    public IReadOnlyList<Dish> MenuItems { get; init; } = [];
 
     public override string ToString() =>
         string.Join(Environment.NewLine, MenuItems);
diff --git a/src/Contracts/Orders/SendOrderParameters.cs b/src/Contracts/Orders/SendOrderParameters.cs
index 880ae0d..ef0c618 100644
--- a/src/Contracts/Orders/SendOrderParameters.cs
+++ b/src/Contracts/Orders/SendOrderParameters.cs
@@ -2,12 +2,11 @@ using Domain.Entities;
 
 namespace Contracts.Orders;
 
-public sealed record SendOrderParameters(string OrderId, IReadOnlyList<OrderItem> MenuItems)
+public sealed record SendOrderParameters
 {
-    public SendOrderParameters(string OrderId)
-        : this(OrderId, [])
-    {
-    }
+    public required string OrderId { get; init; }
+
+    public IReadOnlyList<OrderItem> MenuItems { get; init; } = [];
 
     public override string ToString() =>
         $"OrderId={OrderId}, Items=[{string.Join("; ", MenuItems)}]";