Bemol: a simple web framework for C#

Bemol's main goal is simplicity. You don't have to extend anything, there are no @Annotations, there is no magic; just code.

• Download: https://www.nuget.org/packages/Bemol/
• Documentation: https://bemol-docs.web.app/

Quickstart

Add dependency

.NET CLI

dotnet add package Bemol --version 1.1.0-alpha

.csproj

<ItemGroup>
    <PackageReference Include="Bemol" Version="1.1.0-alpha" />
</ItemGroup>

Start coding:

using Bemol;

class HelloWorld {
    static void Main() {
        App app = new App().Start(7000);
        app.Get("/", (ctx) => ctx.Result("Hello World!"));
    }
}

Run the development server:

dotnet watch run

Examples

JSON API

App app = new App(config => {
    config.DefaultContentType = "application/json";
    config.EnableCorsForAllOrigin = true;
}).Start();

var todos = List<Todo>();
app.Get("/todos", ctx => { // map array of Todos to json-string
    ctx.Json(todos);
});
app.Put("/todos", ctx => { // map request-body (json) to array of Todos
    todos = ctx.Body<List<Todo>>();
    ctx.Status(204);
});

File upload

App app = new App().Start();

app.Post("/upload", ctx => {
    var file = ctx.UploadedFile("file");
    using (var fs = File.Create($"./upload/{file.Filename}")) {
        file.Content.Seek(0, SeekOrigin.Begin);
        file.Content.CopyTo(fs);
    }
}

Special thanks

• David Åse, for creating Javalin.
• Blake Mizerany, for creating Sinatra.
• Per Wendel, for creating Spark.