refactor and add using constants instead of hard coded strings ...

DI/XDIHelperExtension.cs

@@ -17,6 +17,7 @@ using xPushService.Helpers;
 using xPushService.DI;
 using xStringService.Interfaces;
 using xStringService.Providers;
+using xStringService.Constants;
 
 namespace xStringService.DI
 {
@@ -80,8 +81,8 @@ namespace xStringService.DI
             var pushHelper = new XPushServiceHelper();
 
             //
-            pushHelper.AddHub<XStringDtoHub>("stringDto");
-            pushHelper.AddHub<XStringEntityHub>("stringEntity");
+            pushHelper.AddHub<XStringDtoHub>(XStringServiceConstants.XStringDtoHub);
+            pushHelper.AddHub<XStringEntityHub>(XStringServiceConstants.XStringEntityHub);
 
             //
             app.UseXPushService(pushHelper);
@@ -106,7 +107,7 @@ namespace xStringService.DI
         /// <summary>
         /// a LogTag for Service ...
         /// </summary>
-        private static string XLogTag = "XStringService";
+        private static string XLogTag = XStringServiceConstants.XStringServiceDILogTag;
 
         /// <summary>
         /// print a log in Console ...
@@ -179,9 +180,9 @@ namespace xStringService.DI
                 //
                 descriptor = typeof(XStringServiceHelper)
                     .InvokeGenericMethod<XRepositoryDescriptor>(
-                        methodName: "GetXStringEFRepositoryDescriptor",
+                        args: null,
                         runtimeType: contextType,
-                        args: null
+                        methodName: XStringServiceConstants.GetXStringEFRepositoryDescriptor
                 );
                 break;