├── .gitignore ├── GraphQL.Middleware.xproj ├── GraphQL.Middleware.xproj.user ├── GraphQLMiddleware.cs ├── GraphQLOptions.cs ├── GraphQLRequest.cs ├── GraphiQLMiddleware.cs ├── GraphiQLOptions.cs ├── IApplicationBuilderExtensions.cs ├── LICENSE ├── README.md ├── project.json └── project.lock.json /.gitignore: -------------------------------------------------------------------------------- 1 |  2 | bin -------------------------------------------------------------------------------- /GraphQL.Middleware.xproj: -------------------------------------------------------------------------------- 1 |  2 | 3 | 4 | 14.0 5 | $(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion) 6 | 7 | 8 | 9 | 10 | 9f18d386-a242-4696-97f1-20a892540ce4 11 | GraphQL.Middleware 12 | .\obj 13 | .\bin\ 14 | v4.5.2 15 | 16 | 17 | 18 | 2.0 19 | 20 | 21 | 22 | -------------------------------------------------------------------------------- /GraphQL.Middleware.xproj.user: -------------------------------------------------------------------------------- 1 |  2 | 3 | 4 | Start 5 | 6 | -------------------------------------------------------------------------------- /GraphQLMiddleware.cs: -------------------------------------------------------------------------------- 1 | using System; 2 | using System.IO; 3 | using System.Threading.Tasks; 4 | using GraphQL.Http; 5 | using GraphQL.Types; 6 | using Microsoft.AspNetCore.Http; 7 | using Microsoft.Extensions.Options; 8 | using Newtonsoft.Json; 9 | 10 | namespace GraphQL.Middleware 11 | { 12 | /// 13 | /// Provides middleware for hosting GraphQL. 14 | /// 15 | public sealed class GraphQLMiddleware 16 | { 17 | private readonly string graphqlPath; 18 | private readonly RequestDelegate next; 19 | private readonly ISchema schema; 20 | 21 | /// 22 | /// Initializes a new instance of the class. 23 | /// 24 | /// 25 | /// The next request delegate. 26 | /// 27 | /// 28 | /// The GraphQL options. 29 | /// 30 | /// 31 | /// Throws if or is null. 32 | /// 33 | public GraphQLMiddleware(RequestDelegate next , IOptions options) 34 | { 35 | if (next == null) 36 | { 37 | throw new ArgumentNullException(nameof(next)); 38 | } 39 | if (options == null) 40 | { 41 | throw new ArgumentNullException(nameof(options)); 42 | } 43 | if (options.Value?.Schema == null) 44 | { 45 | throw new ArgumentException("Schema is null"); 46 | } 47 | 48 | this.next = next; 49 | var optionsValue = options.Value; 50 | graphqlPath = string.IsNullOrEmpty(optionsValue?.GraphQLPath) ? GraphQLOptions.DefaultGraphQLPath : optionsValue.GraphQLPath; 51 | schema = optionsValue?.Schema; 52 | } 53 | 54 | /// 55 | /// Invokes the middleware with the specified context. 56 | /// 57 | /// 58 | /// The context. 59 | /// 60 | /// 61 | /// A representing the middleware invocation. 62 | /// 63 | /// 64 | /// Throws if . 65 | /// 66 | public async Task Invoke(HttpContext context) 67 | { 68 | if (context == null) 69 | { 70 | throw new ArgumentNullException(nameof(context)); 71 | } 72 | 73 | if (ShouldRespondToRequest(context.Request)) 74 | { 75 | var executionResult = await ExecuteAsync(context.Request).ConfigureAwait(true); 76 | await WriteResponseAsync(context.Response , executionResult).ConfigureAwait(true); 77 | return; 78 | } 79 | 80 | await next(context).ConfigureAwait(true); 81 | } 82 | 83 | private async Task ExecuteAsync(HttpRequest request) 84 | { 85 | string requestBodyText; 86 | using (var streamReader = new StreamReader(request.Body)) 87 | { 88 | requestBodyText = await streamReader.ReadToEndAsync().ConfigureAwait(true); 89 | } 90 | var graphqlRequest = JsonConvert.DeserializeObject(requestBodyText); 91 | return await new DocumentExecuter().ExecuteAsync(schema , null , graphqlRequest.Query , graphqlRequest.OperationName , graphqlRequest.Variables.ToInputs()).ConfigureAwait(true); 92 | } 93 | 94 | private bool ShouldRespondToRequest(HttpRequest request) 95 | { 96 | bool a = string.Equals(request.Method , "POST" , StringComparison.OrdinalIgnoreCase); 97 | bool b = request.Path.Equals(graphqlPath); 98 | return a && b; 99 | } 100 | 101 | private static Task WriteResponseAsync(HttpResponse response , ExecutionResult executionResult) 102 | { 103 | response.ContentType = "application/json"; 104 | response.StatusCode = (executionResult.Errors?.Count ?? 0) == 0 ? 200 : 400; 105 | var graphqlResponse = new DocumentWriter().Write(executionResult); 106 | return response.WriteAsync(graphqlResponse); 107 | } 108 | } 109 | } 110 | -------------------------------------------------------------------------------- /GraphQLOptions.cs: -------------------------------------------------------------------------------- 1 | using System; 2 | using System.Collections.Generic; 3 | using System.Linq; 4 | using System.Threading.Tasks; 5 | using GraphQL.Types; 6 | 7 | namespace GraphQL.Middleware 8 | { 9 | /// 10 | /// Options for the . 11 | /// 12 | public sealed class GraphQLOptions 13 | { 14 | /// 15 | /// The default GraphQL path. 16 | /// 17 | public const string DefaultGraphQLPath = "/graphql"; 18 | 19 | /// 20 | /// Create an instance with the default options settings. 21 | /// 22 | public GraphQLOptions() 23 | { 24 | GraphQLPath = DefaultGraphQLPath; 25 | } 26 | 27 | /// 28 | /// Provides the path to GraphQL endpoint. 29 | /// 30 | /// 31 | /// Include leading forward slash. Defaults to "/graphql". 32 | /// 33 | public string GraphQLPath { get; set; } 34 | 35 | /// 36 | /// Provides the schema instance. 37 | /// 38 | public ISchema Schema { get; set; } 39 | } 40 | 41 | 42 | } 43 | -------------------------------------------------------------------------------- /GraphQLRequest.cs: -------------------------------------------------------------------------------- 1 | using System; 2 | using System.Collections.Generic; 3 | using System.Linq; 4 | using System.Threading.Tasks; 5 | 6 | namespace GraphQL.Middleware 7 | { 8 | internal sealed class GraphQLRequest 9 | { 10 | public string OperationName { get; set; } 11 | 12 | public string Query { get; set; } 13 | 14 | public string Variables { get; set; } 15 | } 16 | } 17 | -------------------------------------------------------------------------------- /GraphiQLMiddleware.cs: -------------------------------------------------------------------------------- 1 | using System; 2 | using System.IO; 3 | using System.Reflection; 4 | using System.Text; 5 | using System.Threading.Tasks; 6 | using Microsoft.AspNetCore.Http; 7 | using Microsoft.Extensions.Options; 8 | 9 | namespace GraphQL.Middleware 10 | { 11 | /// 12 | /// Provides middleware to display GraphiQL. 13 | /// 14 | public sealed class GraphiQLMiddleware 15 | { 16 | private static readonly string Template = ReadTemplate(); 17 | private readonly string graphiqlPath; 18 | private readonly string graphqlPath; 19 | private readonly RequestDelegate next; 20 | 21 | /// 22 | /// Initializes a new instance of the class. 23 | /// 24 | /// 25 | /// The next request delegate. 26 | /// 27 | /// 28 | /// The GraphiQL options. 29 | /// 30 | /// 31 | /// Throws if or is null. 32 | /// 33 | public GraphiQLMiddleware(RequestDelegate next , IOptions options) 34 | { 35 | if (next == null) 36 | { 37 | throw new ArgumentNullException(nameof(next)); 38 | } 39 | if (options == null) 40 | { 41 | throw new ArgumentNullException(nameof(options)); 42 | } 43 | 44 | this.next = next; 45 | var optionsValue = options.Value; 46 | graphiqlPath = string.IsNullOrEmpty(optionsValue?.GraphiQLPath) ? GraphiQLOptions.DefaultGraphiQLPath : optionsValue.GraphiQLPath; 47 | graphqlPath = string.IsNullOrEmpty(optionsValue?.GraphQLPath) ? GraphiQLOptions.DefaultGraphQLPath : optionsValue.GraphQLPath; 48 | } 49 | 50 | /// 51 | /// Invokes the middleware with the specified context. 52 | /// 53 | /// 54 | /// The context. 55 | /// 56 | /// 57 | /// A representing the middleware invocation. 58 | /// 59 | /// 60 | /// Throws if . 61 | /// 62 | public async Task Invoke(HttpContext context) 63 | { 64 | if (context == null) 65 | { 66 | throw new ArgumentNullException(nameof(context)); 67 | } 68 | 69 | if (ShouldRespondToRequest(context.Request)) 70 | { 71 | await WriteResponseAsync(context.Response).ConfigureAwait(true); 72 | return; 73 | } 74 | 75 | await next(context).ConfigureAwait(true); 76 | } 77 | 78 | private static string ReadTemplate() 79 | { 80 | return @" 81 | 89 | 90 | 91 | 92 | 104 | GraphiQL 105 | 106 | 107 | 108 | 109 | 110 | 111 | 112 |
Loading...
113 | 199 | 200 | 201 | "; 202 | //var assembly = typeof(IApplicationBuilderExtensions).GetTypeInfo().Assembly; 203 | //var a = assembly.GetManifestResourceNames(); 204 | //using (var stream = assembly.GetManifestResourceStream("index.html")) 205 | //using (var streamReader = new StreamReader(stream , Encoding.UTF8)) 206 | //{ 207 | // return streamReader.ReadToEnd(); 208 | //} 209 | } 210 | 211 | private bool ShouldRespondToRequest(HttpRequest request) 212 | { 213 | return string.Equals(request.Method , "GET" , StringComparison.OrdinalIgnoreCase) && request.Path.Equals(graphiqlPath); 214 | } 215 | 216 | private Task WriteResponseAsync(HttpResponse response) 217 | { 218 | response.ContentType = "text/html"; 219 | response.StatusCode = 200; 220 | 221 | // TODO: use RazorPageGenerator when ASP.NET Core 1.1 is out...? 222 | var builder = new StringBuilder(Template); 223 | builder.Replace("@{GraphQLPath}" , graphqlPath); 224 | 225 | var data = Encoding.UTF8.GetBytes(builder.ToString()); 226 | return response.Body.WriteAsync(data , 0 , data.Length); 227 | } 228 | } 229 | } 230 | -------------------------------------------------------------------------------- /GraphiQLOptions.cs: -------------------------------------------------------------------------------- 1 | using System; 2 | using System.Collections.Generic; 3 | using System.Linq; 4 | using System.Threading.Tasks; 5 | 6 | namespace GraphQL.Middleware 7 | { 8 | /// 9 | /// Options for the . 10 | /// 11 | public sealed class GraphiQLOptions 12 | { 13 | public const string DefaultGraphiQLPath = "/graphiql"; 14 | public const string DefaultGraphQLPath = "/graphql"; 15 | 16 | /// 17 | /// Create an instance with the default options settings. 18 | /// 19 | public GraphiQLOptions() 20 | { 21 | GraphiQLPath = DefaultGraphiQLPath; 22 | GraphQLPath = DefaultGraphQLPath; 23 | } 24 | 25 | /// 26 | /// Provides the path to GraphiQL. 27 | /// 28 | /// 29 | /// Include leading forward slash. Defaults to "/graphiql". 30 | /// 31 | public string GraphiQLPath { get; set; } 32 | 33 | /// 34 | /// Provides the path to GraphQL endpoint. 35 | /// 36 | /// 37 | /// Include leading forward slash. Defaults to "/graphql". 38 | /// 39 | public string GraphQLPath { get; set; } 40 | } 41 | 42 | } 43 | -------------------------------------------------------------------------------- /IApplicationBuilderExtensions.cs: -------------------------------------------------------------------------------- 1 | using System; 2 | using System.Collections.Generic; 3 | using System.Linq; 4 | using System.Threading.Tasks; 5 | using Microsoft.AspNetCore.Builder; 6 | //using Microsoft.AspNetCore.Builder; 7 | using Microsoft.Extensions.Options; 8 | 9 | namespace GraphQL.Middleware 10 | { 11 | /// 12 | /// Extension methods for using GraphiQL with . 13 | /// 14 | public static class IApplicationBuilderExtensions 15 | { 16 | /// 17 | /// Uses GraphiQL with the specified options. 18 | /// 19 | /// 20 | /// The application builder. 21 | /// 22 | /// 23 | /// The options for the GraphiQL middleware. 24 | /// 25 | /// 26 | /// The modified application builder. 27 | /// 28 | /// 29 | /// Thrown if or is null. 30 | /// 31 | public static IApplicationBuilder UseGraphQL(this IApplicationBuilder app , GraphQLOptions options) 32 | { 33 | if (app == null) 34 | { 35 | throw new ArgumentNullException(nameof(app)); 36 | } 37 | if (options == null) 38 | { 39 | throw new ArgumentNullException(nameof(options)); 40 | } 41 | return app.UseMiddleware(Options.Create(options)); 42 | } 43 | 44 | /// 45 | /// Uses GraphiQL with default options. 46 | /// 47 | /// 48 | /// The application builder. 49 | /// 50 | /// 51 | /// The modified application builder. 52 | /// 53 | /// 54 | /// Thrown if is null. 55 | /// 56 | public static IApplicationBuilder UseGraphiQL(this IApplicationBuilder app) 57 | { 58 | if (app == null) 59 | { 60 | throw new ArgumentNullException(nameof(app)); 61 | } 62 | return app.UseMiddleware(); 63 | } 64 | 65 | /// 66 | /// Uses GraphiQL with the specified options. 67 | /// 68 | /// 69 | /// The application builder. 70 | /// 71 | /// 72 | /// The options for the GraphiQL middleware. 73 | /// 74 | /// 75 | /// The modified application builder. 76 | /// 77 | /// 78 | /// Thrown if or is null. 79 | /// 80 | public static IApplicationBuilder UseGraphiQL(this IApplicationBuilder app , GraphiQLOptions options) 81 | { 82 | if (app == null) 83 | { 84 | throw new ArgumentNullException(nameof(app)); 85 | } 86 | if (options == null) 87 | { 88 | throw new ArgumentNullException(nameof(options)); 89 | } 90 | return app.UseMiddleware(Options.Create(options)); 91 | } 92 | } 93 | } 94 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | MIT License 2 | 3 | Copyright (c) 2016 Wesam 4 | 5 | Permission is hereby granted, free of charge, to any person obtaining a copy 6 | of this software and associated documentation files (the "Software"), to deal 7 | in the Software without restriction, including without limitation the rights 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 9 | copies of the Software, and to permit persons to whom the Software is 10 | furnished to do so, subject to the following conditions: 11 | 12 | The above copyright notice and this permission notice shall be included in all 13 | copies or substantial portions of the Software. 14 | 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 21 | SOFTWARE. 22 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # ASP.Net-Core-GraphQL-Middleware 2 | ASP.Net Core GraphQL Middleware 3 | 4 | usage: 5 | in your Startup.cs in the Configure() Method 6 | 7 | ```cs 8 | app.UseGraphQL(new GraphQLOptions 9 | { 10 | GraphQLPath = "/graphql" , 11 | Schema = new Schema { Query = new StarWarsQuery() } 12 | }); 13 | 14 | app.UseGraphiQL(new GraphiQLOptions() 15 | { 16 | GraphiQLPath = "/graphiql" 17 | }); 18 | 19 | ``` -------------------------------------------------------------------------------- /project.json: -------------------------------------------------------------------------------- 1 | { 2 | "version": "1.0.0-*", 3 | 4 | "dependencies": { 5 | "Microsoft.AspNetCore.Http.Abstractions": "1.1.0-alpha1-22011", 6 | "Microsoft.Extensions.Options": "1.1.0-alpha1-22011", 7 | "NETStandard.Library": "1.6.0", 8 | "Newtonsoft.Json": "9.0.1", 9 | "GraphQL": "0.12.1-alpha-545" 10 | }, 11 | 12 | "frameworks": { 13 | "netstandard1.6": { 14 | "imports": "dnxcore50" 15 | } 16 | } 17 | } 18 | --------------------------------------------------------------------------------