LegendaryB/Cherry

A simple http server implementation with a few goodies built around NET's HttpListener.

Cherry

A simple http server implementation with a few goodies built around NET's HttpListener.

🎯 Features

• Built around .NET's HttpListener
• Setup of the HttpServer instance via a fluent api
• Lightweight. The only dependency is Microsoft.Extensions.Logging.Abstractions to make logging of internal events possible
• Built-in HttpRouter is interchangeable by implementing the interface IHttpRouter and calling HttpServer.Use<MyRouter>()
• HTTP Controller support (limited to POST, GET, PUT, DELETE, but extendable)
  • Use Func<THttpRequest, THttpRespoonse, Task> to implement controllers
• Middleware support
  • Use Func<THttpContext, Task> to implement custom middlewares

📝 Usage

namespace Cherry.ConsoleApp
{
    public class User
    {
        public string Name => "Daniel";
        public string Mail => "daniel@github.com";
    }

    public class JsonContentTypeMiddleware : IMiddleware
    {
        public Task HandleRequestAsync(
            HttpListenerRequest req,
            HttpListenerResponse res)
        {
            res.ContentType = MediaTypeNames.Application.Json;
            return Task.CompletedTask;
        }
    }

    public class HelloWorldController : HttpController
    {
        public override Task HandleGetAsync(HttpListenerRequest req, HttpListenerResponse res)
        {
            return res.AnswerWithStatusCodeAsync(
                "Hello World!",
                HttpStatusCode.OK);
        }
    }

    [Route("/api/v1/users")]
    public class UserController : HttpController
    {
        public override Task HandleGetAsync(HttpListenerRequest req, HttpListenerResponse res)
        {
            return base.HandleGetAsync(req, res);
        }
    }

    public class Program
    {
        static async Task Main()
        {
            var server = new HttpServer(NullLogger<HttpServer>.Instance, "http://localhost:8081/")
                .RegisterMiddleware<JsonContentTypeMiddleware>() // installs a global middleware because no specific route was provided
                .RegisterController<HelloWorldController>("/api/v1/hello") // Path must be provided because the class is not decorated with the route attribute
                .RegisterController<UserController>(); // No path must be provided, because the class is decorated with the Route attribute

            // server.AutoRegisterControllers(); // Can be used to automatically discover controllers from a given assembly. Uses reflection and ignores all types which are not decorated with the Route attribute and inheriting from the HttpController base class

            await server.RunAsync();
        }
    }
}