added initial configuration for GraphQL

src/GraphQL/GraphTypes/UserType.cs

@@ -0,0 +1,15 @@
+using GraphQL.Types;
+using NetCoreBootstrap.Models.Database;
+
+namespace NetCoreBootstrap.GraphQL.GraphQLTypes
+{
+    public class UserType : ObjectGraphType<User>
+    {
+        public UserType()
+        {
+            Field(user => user.Id);
+            Field(user => user.Email);
+            Field(user => user.UserName);
+        }
+    }
+}

src/GraphQL/Queries/UserQuery.cs

@@ -0,0 +1,22 @@
+using GraphQL.Types;
+using NetCoreBootstrap.Repositories.Interfaces;
+using NetCoreBootstrap.GraphQL.GraphQLTypes;
+
+namespace NetCoreBootstrap.GraphQL.Queries
+{
+    public class UserQuery : ObjectGraphType
+    {
+        private readonly IUnitOfWork _unitOfWork;
+        public UserQuery(IUnitOfWork unitOfWork)
+        {
+            this._unitOfWork = unitOfWork;
+            Field<ListGraphType<UserType>>("users", resolve: context => _unitOfWork.UserRepository.GetAllUsers());
+            Field<UserType>("user",
+                            arguments: new QueryArguments(new QueryArgument<IntGraphType> { Name = "id" }),
+                            resolve:
+                                context => _unitOfWork.UserRepository
+                                                    .GetUserById(context.GetArgument<string>("id"))
+                                                    .Result);
+        }
+    }
+}

src/GraphQL/Schemas/UserSchema.cs

@@ -0,0 +1,12 @@
+using GraphQL;
+using GraphQL.Types;
+using NetCoreBootstrap.GraphQL.Queries;
+
+namespace NetCoreBootstrap.GraphQL.Schemas
+{
+    public class UserSchema : Schema
+    {
+        public UserSchema(IDependencyResolver resolver) : base(resolver)
+            => this.Query = resolver.Resolve<UserQuery>();
+    }
+}

src/NetCoreBootstrap.csproj

@@ -4,17 +4,20 @@
     <CodeAnalysisRuleSet>./ca.ruleset</CodeAnalysisRuleSet>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="Hangfire" Version="1.6.17"/>
-    <PackageReference Include="Hangfire.PostgreSql" Version="1.4.8.1"/>
-    <PackageReference Include="LocalizationCultureCore" Version="1.1.2"/>
-    <PackageReference Include="Microsoft.AspNetCore.App" Version="2.1.1"/>
-    <PackageReference Include="Microsoft.AspNetCore.Authentication.Facebook" Version="2.1.1"/>
-    <PackageReference Include="Microsoft.AspNetCore.Authentication.Google" Version="2.1.1"/>
-    <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="2.1.1"/>
-    <PackageReference Include="Rollbar" Version="1.5.0  "/>
-    <PackageReference Include="Serilog.Extensions.Logging.File" Version="1.1.0"/>
-    <PackageReference Include="StyleCop.Analyzers" Version="1.1.0-beta004"/>
-    <PackageReference Include="Swashbuckle.AspNetCore" Version="1.0.0"/>
-    <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="2.1.1"/>
+    <PackageReference Include="GraphQL" Version="2.4.0" />
+    <PackageReference Include="GraphQL.Server.Transports.AspNetCore" Version="3.4.0" />
+    <PackageReference Include="GraphQL.Server.Ui.Playground" Version="3.5.0-alpha0014" />
+    <PackageReference Include="Hangfire" Version="1.6.17" />
+    <PackageReference Include="Hangfire.PostgreSql" Version="1.4.8.1" />
+    <PackageReference Include="LocalizationCultureCore" Version="1.1.2" />
+    <PackageReference Include="Microsoft.AspNetCore.App" Version="2.1.1" />
+    <PackageReference Include="Microsoft.AspNetCore.Authentication.Facebook" Version="2.1.1" />
+    <PackageReference Include="Microsoft.AspNetCore.Authentication.Google" Version="2.1.1" />
+    <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="2.1.1" />
+    <PackageReference Include="Rollbar" Version="1.5.0  " />
+    <PackageReference Include="Serilog.Extensions.Logging.File" Version="1.1.0" />
+    <PackageReference Include="StyleCop.Analyzers" Version="1.1.0-beta004" />
+    <PackageReference Include="Swashbuckle.AspNetCore" Version="1.0.0" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="2.1.1" />
   </ItemGroup>
 </Project>

src/Startup.cs

@@ -1,8 +1,8 @@
-using System;
-using System.Globalization;
-using System.IdentityModel.Tokens.Jwt;
-using System.Text;
-using Microsoft.AspNetCore.Authentication.JwtBearer;
+using System.Globalization;
+using GraphQL;
+using GraphQL.Server;
+using GraphQL.Server.Ui.Playground;
+using GraphQL.Types;
 using Microsoft.AspNetCore.Builder;
 using Microsoft.AspNetCore.Hosting;
 using Microsoft.AspNetCore.Http;
@@ -13,10 +13,10 @@
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Logging;
-using Microsoft.IdentityModel.Tokens;
-using NetCoreBootstrap.Mail;
+using NetCoreBootstrap.GraphQL.GraphQLTypes;
+using NetCoreBootstrap.GraphQL.Queries;
+using NetCoreBootstrap.GraphQL.Schemas;
 using NetCoreBootstrap.Models.Database;
-using NetCoreBootstrap.Repositories;
 using NetCoreBootstrap.Repositories.Database;
 using NetCoreBootstrap.Repositories.Interfaces;
 // using Rollbar;
@@ -39,6 +39,8 @@ public Startup(IConfiguration configuration, IHostingEnvironment currentEnvironm
         // This method gets called by the runtime. Use this method to add services to the container.
         public void ConfigureServices(IServiceCollection services)
         {
+            services.AddScoped<IDependencyResolver>(s => new FuncDependencyResolver(s.GetRequiredService));
+
             // Add framework services.
             // Rollbar service start
             // ConfigureRollbarSingleton();
@@ -119,6 +121,13 @@ public void ConfigureServices(IServiceCollection services)
             // Uncomment this if you want use Hangfire
             // services.AddHangfire(options => GlobalConfiguration.Configuration.UsePostgreSqlStorage(connectionString));
             // services.AddSingleton<IMailer, Mailer>();
+
+            // ----------------------------------------- GraphQL services -----------------------------------------------
+            services.AddScoped<UserType>();
+            services.AddScoped<UserQuery>();
+            services.AddScoped<ISchema, UserSchema>();
+
+            services.AddGraphQL();
         }
 
         // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
@@ -169,6 +178,9 @@ public void Configure(IApplicationBuilder app, IHostingEnvironment env, ILoggerF
             // Uncomment this if you want use Hangfire
             // app.UseHangfireDashboard();
             // app.UseHangfireServer(new BackgroundJobServerOptions(), null, new PostgreSqlStorage(Configuration["ConnectionString"]));
+            app.UseGraphQL<ISchema>("/graphql");
+            // use graphql-playground at default url /ui/playground
+            app.UseGraphQLPlayground(new GraphQLPlaygroundOptions { Path = "/ui/playground" });
         }
 
         // Rollbar methods start