GraphQL Schema

src/OrchardCore.Modules/OrchardCore.Apis.GraphQL/SchemaMiddleware.cs

@@ -0,0 +1,30 @@
+using System.Net;
+using System.Threading.Tasks;
+using GraphQL.Utilities;
+using Microsoft.AspNetCore.Http;
+
+namespace OrchardCore.Apis.GraphQL
+{
+    public class SchemaMiddleware
+    {
+        private readonly RequestDelegate _next;
+
+        public SchemaMiddleware(RequestDelegate next)
+        {
+            _next = next;
+        }
+
+        public async Task Invoke(HttpContext context, ISchemaFactory schemaService)
+        {
+            var schema = await schemaService.GetSchemaAsync();
+
+            using (var printer = new SchemaPrinter(schema))
+            {
+                context.Response.ContentType = "application/json";
+                context.Response.StatusCode = (int)HttpStatusCode.OK;
+
+                await context.Response.WriteAsync(printer.Print());
+            }
+        }
+    }
+}

src/OrchardCore.Modules/OrchardCore.Apis.GraphQL/Startup.cs

@@ -87,6 +87,8 @@ public override void Configure(IApplicationBuilder app, IEndpointRouteBuilder ro
             );
 
             app.UseMiddleware<GraphQLMiddleware>(serviceProvider.GetService<IOptions<GraphQLSettings>>().Value);
+
+            app.Map("/api/schema.graphql", configuration => configuration.UseMiddleware<SchemaMiddleware>());
         }
     }
 }