Demonstrate "ExportDirective with type argument fails to prepend @ to directive name"

blog/2020/2020-03-18-entity-framework/ContosoUni/ContosoUni.csproj

@@ -1,17 +1,22 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp5.0</TargetFramework>
+    <TargetFramework>net8.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="3.1.2" />
-    <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="3.1.2" />
-    <PackageReference Include="HotChocolate.AspNetCore" Version="10.4.0-rc.1" />
-    <PackageReference Include="HotChocolate.Types.Filters" Version="10.4.0-rc.1" />
-    <PackageReference Include="HotChocolate.Types.Sorting" Version="10.4.0-rc.1" />
-    <PackageReference Include="HotChocolate.Types.Selections" Version="10.4.0-rc.1" />
-    <PackageReference Include="HotChocolate.AspNetCore.Playground" Version="10.4.0-rc.1" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="8.0.0" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="8.0.0" />
+    <PackageReference Include="HotChocolate" Version="14.2.0-p.7" />
+    <PackageReference Include="HotChocolate.AspNetCore" Version="14.2.0-p.7" />
+    <PackageReference Include="HotChocolate.Data.EntityFramework" Version="14.2.0-p.7" />
+    <PackageReference Include="HotChocolate.Execution" Version="14.2.0-p.7" />
+    <PackageReference Include="HotChocolate.Types.Analyzers" Version="14.2.0-p.7" />
+    <PackageReference Include="HotChocolate.Data" Version="14.2.0-p.7" />
+    <PackageReference Include="HotChocolate.Diagnostics" Version="14.2.0-p.7" />
+    <PackageReference Include="HotChocolate.Types" Version="14.2.0-p.7" />
+    <PackageReference Include="HotChocolate.Types.CursorPagination" Version="14.2.0-p.7" />
+    <PackageReference Include="HotChocolate.ApolloFederation" Version="14.2.0-p.7" />
   </ItemGroup>
 
 </Project>

blog/2020/2020-03-18-entity-framework/ContosoUni/Query.cs

@@ -1,5 +1,6 @@
 using System.Linq;
 using HotChocolate;
+using HotChocolate.Data;
 using HotChocolate.Types;
 using HotChocolate.Types.Relay;
 
@@ -8,21 +9,17 @@ namespace ContosoUniversity
     public class Query
     {
         [UseFirstOrDefault]
-        [UseSelection]
-        public IQueryable<Student> GetStudentById([Service]SchoolContext context, int studentId) =>
+        public IQueryable<Student> GetStudentById([Service] SchoolContext context, int studentId) =>
             context.Students.Where(t => t.Id == studentId);
 
-        [UseSelection]
+        [UsePaging]
         [UseFiltering]
         [UseSorting]
-        public IQueryable<Student> GetStudents([Service]SchoolContext context) =>
-            context.Students;
+        public IQueryable<Student> GetStudents([Service] SchoolContext context) => context.Students;
 
         [UsePaging]
-        [UseSelection]
         [UseFiltering]
         [UseSorting]
-        public IQueryable<Course> GetCourses([Service]SchoolContext context) =>
-            context.Courses;
+        public IQueryable<Course> GetCourses([Service] SchoolContext context) => context.Courses;
     }
-}
+}

blog/2020/2020-03-18-entity-framework/ContosoUni/Startup.cs

@@ -7,23 +7,35 @@
 using HotChocolate;
 using HotChocolate.AspNetCore;
 using HotChocolate.Execution.Configuration;
-
+using HotChocolate.AspNetCore.Serialization;
+using HotChocolate.ApolloFederation;
+using HotChocolate.Types;
+using HotChocolate.ApolloFederation.Types;
+using HotChocolate.Execution;
+using System.IO;
 
 namespace ContosoUniversity
 {
     public class Startup
     {
         // This method gets called by the runtime. Use this method to add services to the container.
         // For more information on how to configure your application, visit https://go.microsoft.com/fwlink/?LinkID=398940
-        public void ConfigureServices(IServiceCollection services)
+        public async void ConfigureServices(IServiceCollection services)
         {
             services.AddDbContext<SchoolContext>();
+            services.AddHttpResponseFormatter<DefaultHttpResponseFormatter>();
+
+            var gqlService = services
+                .AddGraphQLServer()
+                .AddQueryType<Query>()
+                .AddFiltering()
+                .AddSorting()
+                .ModifyPagingOptions(opt => opt.IncludeTotalCount = true)
+                .AddApolloFederation(FederationVersion.Federation26)
+                .ExportDirective<OneOfDirectiveType>();
 
-            services.AddGraphQL(
-                SchemaBuilder.New()
-                    .AddQueryType<Query>()
-                    .Create(),
-                new QueryExecutionOptions { ForceSerialExecution = true });
+            var schema = await gqlService.BuildSchemaAsync();
+            await File.WriteAllTextAsync("./schema.graphql", schema.Print());
         }
 
         // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
@@ -38,42 +50,67 @@ public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
 
             app.UseRouting();
 
-            app.UseGraphQL();
-            app.UsePlayground();
-
             app.UseEndpoints(endpoints =>
             {
-                endpoints.MapGet("/", async context =>
-                {
-                    await context.Response.WriteAsync("Hello World!");
-                });
+                endpoints
+                    .MapGraphQL()
+                    .WithOptions(new GraphQLServerOptions { Tool = { Enable = true } });
             });
         }
 
         private static void InitializeDatabase(IApplicationBuilder app)
         {
-            using (var serviceScope = app.ApplicationServices.GetService<IServiceScopeFactory>().CreateScope())
+            using (
+                var serviceScope = app.ApplicationServices
+                    .GetService<IServiceScopeFactory>()
+                    .CreateScope()
+            )
             {
                 var context = serviceScope.ServiceProvider.GetRequiredService<SchoolContext>();
                 if (context.Database.EnsureCreated())
                 {
-                    var course = new Course { Credits = 10, Title = "Object Oriented Programming 1" };
-
-                    context.Enrollments.Add(new Enrollment
-                    {
-                        Course = course,
-                        Student = new Student { FirstMidName = "Rafael", LastName = "Foo", EnrollmentDate = DateTime.UtcNow }
-                    });
-                    context.Enrollments.Add(new Enrollment
+                    var course = new Course
                     {
-                        Course = course,
-                        Student = new Student { FirstMidName = "Pascal", LastName = "Bar", EnrollmentDate = DateTime.UtcNow }
-                    });
-                    context.Enrollments.Add(new Enrollment
-                    {
-                        Course = course,
-                        Student = new Student { FirstMidName = "Michael", LastName = "Baz", EnrollmentDate = DateTime.UtcNow }
-                    });
+                        Credits = 10,
+                        Title = "Object Oriented Programming 1"
+                    };
+
+                    context.Enrollments.Add(
+                        new Enrollment
+                        {
+                            Course = course,
+                            Student = new Student
+                            {
+                                FirstMidName = "Rafael",
+                                LastName = "Foo",
+                                EnrollmentDate = DateTime.UtcNow
+                            }
+                        }
+                    );
+                    context.Enrollments.Add(
+                        new Enrollment
+                        {
+                            Course = course,
+                            Student = new Student
+                            {
+                                FirstMidName = "Pascal",
+                                LastName = "Bar",
+                                EnrollmentDate = DateTime.UtcNow
+                            }
+                        }
+                    );
+                    context.Enrollments.Add(
+                        new Enrollment
+                        {
+                            Course = course,
+                            Student = new Student
+                            {
+                                FirstMidName = "Michael",
+                                LastName = "Baz",
+                                EnrollmentDate = DateTime.UtcNow
+                            }
+                        }
+                    );
                     context.SaveChangesAsync();
                 }
             }

blog/2020/2020-03-18-entity-framework/ContosoUni/Student.cs

@@ -2,6 +2,7 @@
 using System.Collections.Generic;
 using System.ComponentModel.DataAnnotations;
 using System.ComponentModel.DataAnnotations.Schema;
+using HotChocolate.Data;
 using HotChocolate.Types;
 
 namespace ContosoUniversity
@@ -15,8 +16,7 @@ public class Student
         public string FirstMidName { get; set; }
         public DateTime EnrollmentDate { get; set; }
 
-        [UseSelection]
         [UseFiltering]
         public virtual ICollection<Enrollment> Enrollments { get; set; }
     }
-}
+}