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

Providers/Entities/XFileSeederBase.cs

@@ -1,11 +1,10 @@
 using System;
 using xDataService.Configuration;
 using xDataService.Providers;
-using xFileService.Interfaces;
 using xFileService.Interfaces.Entities;
 using xFileService.Models.Entities;
 
-namespace xFileService.Providers
+namespace xFileService.Providers.Entities
 {
     public abstract class XFileSeederBase : XBaseDbSeeder<XFile, Guid>, IXFileSeeder
     {

Providers/GraphQL/XFileGraphQLTypeHelper.cs

@@ -1,6 +1,7 @@
 using System;
 using xDataService.Configuration;
 using xDataService.GraphQL;
+using xFileService.Constants;
 using xFileService.Interfaces.Entities;
 using xFileService.Models.Entities;
 
@@ -15,12 +16,12 @@ namespace xFileService.Providers.GraphQL
 
         public override string GetInQueryCollectionName()
         {
-            return "files";
+            return XFileServiceConstants.XFileCollectionName;
         }
 
         public override string GetInQuerySingleName()
         {
-            return "file";
+            return XFileServiceConstants.XFileSingleName;
         }
     }
 }

Providers/XFileTagProvider.cs

@@ -1,6 +1,6 @@
 using System;
+using xFileService.Constants;
 using xFileService.Interfaces;
-using xFileService.Models.Entities;
 using xTagService.Interfaces.Dtos;
 using xTagService.Providers;
 
@@ -11,8 +11,8 @@ namespace xFileService.Providers
         public XFileTagProvider(
             IXTagServiceProvider tagProvider
         ) : base(
-            providedFor: nameof(XFile), 
-            tagProvider: tagProvider
+            tagProvider: tagProvider,
+            providedFor: XFileServiceConstants.XFileTagProvided
         )
         { }
     }