Refactor Category Service ...

- Add all HardCoded Strings in Constants ...
- Apply Resolve Constant Replacement Side Affects ...
- add Support for Service Main Provider ...

DI/XDIHelperExtension.cs

@@ -4,6 +4,7 @@ using Microsoft.AspNetCore.Builder;
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
 using xCategoryService.Configurations;
+using xCategoryService.Constants;
 using xCategoryService.Helpers;
 using xCategoryService.Interfaces;
 using xCategoryService.Interfaces.Dtos;
@@ -149,13 +150,13 @@ namespace xCategoryService.DI
 
             //
             // Category ...
-            pushHelper.AddHub<XCategoryDtoHub>("categoryDto");
-            pushHelper.AddHub<XCategoryEntityHub>("categoryEntity");
+            pushHelper.AddHub<XCategoryDtoHub>(XCategoryServiceConstants.XCategoryDtoHub);
+            pushHelper.AddHub<XCategoryEntityHub>(XCategoryServiceConstants.XCategoryEntityHub);
 
             //
             // SubCategory ...
-            pushHelper.AddHub<XSubCategoryDtoHub>("subCategoryDto");
-            pushHelper.AddHub<XSubCategoryEntityHub>("subCategoryEntity");
+            pushHelper.AddHub<XSubCategoryDtoHub>(XCategoryServiceConstants.XSubCategoryDtoHub);
+            pushHelper.AddHub<XSubCategoryEntityHub>(XCategoryServiceConstants.XSubCategoryEntityHub);
 
             //
             app.UseXPushService(pushHelper);
@@ -295,7 +296,7 @@ namespace xCategoryService.DI
         /// <summary>
         /// a LogTag for Service ...
         /// </summary>
-        private static string XLogTag = "XCategoryService";
+        private static string XLogTag = XCategoryServiceConstants.XCategoryServiceDILogTag;
 
         /// <summary>
         /// print a log in Console ...
@@ -430,7 +431,7 @@ namespace xCategoryService.DI
             }
 
             //
-            #region Register Services ...            
+            #region Register Services ...
             //
             #region Category ...
             //
@@ -498,6 +499,12 @@ namespace xCategoryService.DI
             #endregion
             #endregion
 
+            //
+            // Register Service Main Provider ...
+            services.Add(
+                new ServiceDescriptor(typeof(IXCategoryService), typeof(XCategoryService), lifeTime)
+            );
+
             //
             Log("Service Regitration Succeed ...");
         }