Refactor Category Service ...

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

Providers/GraphQL/XCategoryGraphQLTypeHelper.cs

@@ -1,3 +1,4 @@
+using xCategoryService.Constants;
 using xCategoryService.Interfaces.Entities;
 using xCategoryService.Models.Entities;
 using xDataService.Configuration;
@@ -14,12 +15,12 @@ namespace xCategoryService.Providers.GraphQL
 
         public override string GetInQueryCollectionName()
         {
-            return "categories";
+            return XCategoryServiceConstants.XCategoryCollectionName;
         }
 
         public override string GetInQuerySingleName()
         {
-            return "category";
+            return XCategoryServiceConstants.XCategorySingleName;
         }
     }
 }

Providers/GraphQL/XSubCategoryGraphQLTypeHelper.cs

@@ -1,3 +1,4 @@
+using xCategoryService.Constants;
 using xCategoryService.Interfaces.Entities;
 using xCategoryService.Models.Entities;
 using xDataService.Configuration;
@@ -14,12 +15,12 @@ namespace xCategoryService.Providers.GraphQL
 
         public override string GetInQueryCollectionName()
         {
-            return "subCategories";
+            return XCategoryServiceConstants.XSubCategoryCollectionName;
         }
 
         public override string GetInQuerySingleName()
         {
-            return "subCategory";
+            return XCategoryServiceConstants.XSubCategorySingleName;
         }
     }
 }