diff --git a/Constants/XRepositoryType.cs b/Constants/XRepositoryType.cs
new file mode 100644
index 0000000..215ba72
--- /dev/null
+++ b/Constants/XRepositoryType.cs
@@ -0,0 +1,16 @@
+using xExceptions.Attributes;
+
+namespace xDataService.Constants
+{
+    public enum XRepositoryType
+    {
+        [StringValue("EF")]
+        EF,
+
+        [StringValue("Mongo")]
+        Mongo,
+
+        [StringValue("InMemory")]
+        InMemory
+    }
+}
\ No newline at end of file
diff --git a/DI/XDIHelperExtension.cs b/DI/XDIHelperExtension.cs
index 971dc35..2d9e142 100644
--- a/DI/XDIHelperExtension.cs
+++ b/DI/XDIHelperExtension.cs
@@ -1,7 +1,6 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
-using GraphQL.Server.Ui.Playground;
 using Microsoft.AspNetCore.Builder;
 using Microsoft.EntityFrameworkCore.Infrastructure;
 using Microsoft.Extensions.Configuration;
@@ -122,12 +121,12 @@ namespace xDataService.DI
         /// <param name="source"></param>
         /// <param name="configuration"></param>
         /// <param name="descriptor"></param>
-        /// <param name="lifetime"></param>
+        /// <param name="lifeTime"></param>
         public static void AddXDatabase(
             this IServiceCollection source,
             IConfiguration configuration,
             XDatabaseDescriptor descriptor,
-            ServiceLifetime lifetime = ServiceLifetime.Scoped
+            ServiceLifetime lifeTime = ServiceLifetime.Scoped
         )
         {
             //
@@ -210,7 +209,7 @@ namespace xDataService.DI
                         args: [
                             source,
                             descriptor,
-                            lifetime
+                            lifeTime
                         ]
                     );
 
@@ -232,34 +231,47 @@ namespace xDataService.DI
                 descriptor.Repositories.ToList().ForEach(r =>
                 {
                     //
-                    // Preparing Runtime Types ...
-                    Type[] runtimeTypes = r.GetType().GenericTypeArguments;
-
-                    //
-                    try
-                    {
-                        //
-                        typeof(XDataServiceHelper).InvokeGenericMethod(
-                            methodName: "AddXRepository",
-                            runtimeTypes: runtimeTypes,
-                            args: [
-                                source,
-                                r,
-                                lifetime
-                            ]
-                        );
-
-                        //
-                        Log($"Repository of: {runtimeTypes[0]}, Registered Successfully ...");
-                    }
-                    catch (Exception ex)
-                    {
-                        Log($"Repository of: {runtimeTypes[0]}, Registration failed due {ex.Message} ...");
-                    }
+                    source.AddXRepository(
+                        descriptor: r,
+                        lifeTime: lifeTime
+                    );
                 });
             }
         }
 
+        public static void AddXRepository(
+            this IServiceCollection source,
+            XRepositoryDescriptor descriptor,
+            ServiceLifetime lifeTime = ServiceLifetime.Scoped
+        )
+        {
+            //
+            // Preparing Runtime Types ...
+            Type[] runtimeTypes = descriptor.GetType().GenericTypeArguments;
+
+            //
+            try
+            {
+                //
+                typeof(XDataServiceHelper).InvokeGenericMethod(
+                    methodName: "AddXRepository",
+                    runtimeTypes: runtimeTypes,
+                    args: [
+                        source,
+                        descriptor,
+                        lifeTime
+                    ]
+                );
+
+                //
+                Log($"Repository of: {runtimeTypes[0]}, Registered Successfully ...");
+            }
+            catch (Exception ex)
+            {
+                Log($"Repository of: {runtimeTypes[0]}, Registration failed due {ex.Message} ...");
+            }
+        }
+
         public static void UseXDatabase(
             this IApplicationBuilder source,
             XDatabaseDescriptor descriptor,
@@ -278,113 +290,122 @@ namespace xDataService.DI
                 XException.InvalidArgs.Throw();
             }
 
+            //
+            // Check Repositories Exists ...
+            isValid = descriptor.HasRepositories();
+            if (isValid)
+            {
+                //
+                // Loop through Repositories ...
+                descriptor.Repositories
+                    .ToList()
+                    .ForEach(r =>
+                    {
+                        //
+                        source.UseXRepository(
+                            descriptor: r,
+                            isDevelopmentEnvironment: isDevelopmentEnvironment
+                        );
+                    });
+            }
+        }
+
+        /// <summary>
+        /// Use a Repository Middlewares by Providing it's Descriptor ...
+        /// </summary>
+        /// <param name="source"></param>
+        /// <param name="descriptor"></param>
+        /// <param name="isDevelopmentEnvironment"></param>
+        public static void UseXRepository(
+            this IApplicationBuilder source,
+            XRepositoryDescriptor descriptor,
+            bool isDevelopmentEnvironment = false
+        )
+        {
+            //
+            Log($"Start Using Repository of: {descriptor.Entity}");
+
             //
             var withPlayground = false;
-            var isGraphConfigured = false;
             if (isDevelopmentEnvironment)
             {
                 withPlayground = true;
             }
 
             //
-            // Check Repositories Exists ...
-            isValid = descriptor.HasRepositories();
-            if (isValid)
+            // Create an Scope for Services Acces ...
+            using (var scope = source.ApplicationServices.CreateScope())
             {
                 //
-                // Create an Scope for Services Acces ...
-                using (var scope = source.ApplicationServices.CreateScope())
+                // Inject XDataServiceConfiguration ForMake Sure DataService Registration ...
+                var dataServiceConfiguration = scope.ServiceProvider.GetService<XDataServiceConfiguration>();
+                var isValid = !dataServiceConfiguration.IsNullOrDefault();
+                if (isValid)
                 {
                     //
-                    // Inject XDataServiceConfiguration ForMake Sure DataService Registration ...
-                    var dataServiceConfiguration = scope.ServiceProvider.GetService<XDataServiceConfiguration>();
-                    isValid = !dataServiceConfiguration.IsNullOrDefault();
+                    // Check Seeder Exists ...
+                    // Execute Seeding Data Task if Exists ...
+                    isValid = descriptor.HasSeeder();
                     if (isValid)
                     {
                         //
-                        // Loop through Repositories ...
-                        descriptor.Repositories
-                            .ToList()
-                            .ForEach(r =>
-                            {
-                                //
-                                Log($"Start Using Repository of: {r.Entity}");
+                        var seeder = (dynamic)scope.ServiceProvider.GetService(descriptor.SeederService);
+                        isValid = seeder != null;
+                        if (isValid)
+                        {
+                            //
+                            Log($"Start Seeding {descriptor.Entity} ...");
 
-                                //
-                                // Check Seeder Exists ...
-                                // Execute Seeding Data Task if Exists ...
-                                isValid = r.HasSeeder();
-                                if (isValid)
-                                {
-                                    //
-                                    var seeder = (dynamic)scope.ServiceProvider.GetService(r.SeederService);
-                                    isValid = seeder != null;
-                                    if (isValid)
-                                    {
-                                        //
-                                        Log($"Start Seeding {r.Entity} ...");
+                            //
+                            // Seeding ...
+                            seeder
+                                .Seed()
+                                .GetAwaiter()
+                                .GetResult();
+                        }
+                    }
 
-                                        //
-                                        // Seeding ...
-                                        seeder
-                                            .Seed()
-                                            .GetAwaiter()
-                                            .GetResult();
-                                    }
-                                }
+                    //
+                    // Check GraphQL Support ...
+                    isValid = descriptor.HasGraphSupport();
+                    if (isValid)
+                    {
+                        //
+                        // Use WebSockets ...
+                        source.UseWebSockets();
 
-                                //
-                                // Check GraphQL Support ...
-                                isValid = r.HasGraphSupport();
-                                if (isValid)
-                                {
-                                    //
-                                    // Use WebSockets ...
-                                    if (!isGraphConfigured)
-                                    {
-                                        source.UseWebSockets();
-                                    }
+                        //
+                        // Inject GraphQL Type Helper ...
+                        var helper = (dynamic)scope.ServiceProvider.GetService(descriptor.GraphTypeHelperService);
+                        isValid = helper != null;
+                        if (isValid)
+                        {
+                            //
+                            var graphPath = $"{helper.GetGraphQLPath()}";
+                            var graphBasePath = $"{dataServiceConfiguration.GraphQLBasePath}";
+                            typeof(XDataServiceHelper).InvokeGenericMethod(
+                                methodName: "UseXGraphQL",
+                                runtimeTypes: [
+                                    descriptor.Entity,
+                            descriptor.Key,
+                            descriptor.GraphType,
+                            descriptor.GraphTypeKey,
+                            descriptor.GraphQuery,
+                            descriptor.GraphTypeHelperService,
+                            descriptor.GraphTypeHelperImplementation,
+                            descriptor.GraphSchema
+                                ],
+                                args: [
+                                    source,
+                            graphBasePath,
+                            graphPath,
+                            withPlayground
+                                ]
+                            );
 
-                                    //
-                                    // Inject GraphQL Type Helper ...
-                                    var helper = (dynamic)scope.ServiceProvider.GetService(r.GraphTypeHelperService);
-                                    isValid = helper != null;
-                                    if (isValid)
-                                    {
-                                        //
-                                        var graphPath = $"{helper.GetGraphQLPath()}";
-                                        var graphBasePath = $"{dataServiceConfiguration.GraphQLBasePath}";
-                                        typeof(XDataServiceHelper).InvokeGenericMethod(
-                                            methodName: "UseXGraphQL",
-                                            runtimeTypes: [
-                                                r.Entity,
-                                                r.Key,
-                                                r.GraphType,
-                                                r.GraphTypeKey,
-                                                r.GraphQuery,
-                                                r.GraphTypeHelperService,
-                                                r.GraphTypeHelperImplementation,
-                                                r.GraphSchema
-                                            ],
-                                            args: [
-                                                source,
-                                                graphBasePath,
-                                                graphPath,
-                                                withPlayground
-                                            ]
-                                        );
-
-                                        //
-                                        Log($"Register GraphQL: {graphPath}");
-                                    }
-
-                                    //
-                                    if (!isGraphConfigured)
-                                    {
-                                        isGraphConfigured = true;
-                                    }
-                                }
-                            });
+                            //
+                            Log($"Register GraphQL: {graphPath}");
+                        }
                     }
                 }
             }