Mando

A super lightweight and free alternative to libraries that provide decoupled, in-process communication.

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Usage

You can use the package directly or fork this repo and create your own, custom implementation.

Installation

The easiest way to add Mando to your project via NuGet.

Features

The features of this library are limited by design, so that the library will be easier to extend if you decide to fork the repo and create a more custom implementation. The core features are, and will always be:

Single command, single handler

Code Example

internal sealed MyCustomCommand : ICommand;

internal sealed MyCustomCommandHandler : ICommandHandler<MyCustomCommand>
{
    public Task Execute(MyCustomCommand command)
    {
        // Your magic here!
    }
}

Single command, multiple handlers

Code Example

internal sealed MyCustomCommand : ICommand;

internal sealed MyCustomCommandHandlerOne : ICommandHandler<MyCustomCommand>
{
    public Task Execute(MyCustomCommand command)
    {
        // Your magic here!
    }
}

internal sealed MyCustomCommandHandlerTwo : ICommandHandler<MyCustomCommand>
{
    public Task Execute(MyCustomCommand command)
    {
        // And some other magic here!
    }
}

Multiple commands, single handler

Code Example

internal sealed MyCustomCommandOne : ICommand;
internal sealed MyCustomCommandTwo : ICommand;

internal sealed MyCustomCommandHandler :
    ICommandHandler<MyCustomCommandOne>, ICommandHandler<MyCustomCommandTwo>
{
    public Task Execute(MyCustomCommandOne command)
    {
        // Your magic here!
    }
    
    public Task Execute(MyCustomCommandTwo command)
    {
        // Even more magic here!
    }
}

Dependency Injection

services.AddMando(Assembly.GetExecutingAssembly()))

This registers

• ICommandHandler<TCommand> : All implementations are registered as Scoped
• IDispatcher as Scoped

Usage

internal sealed class Application(IDispatcher dispatcher) : IApplication
{
    public Task RunAsync() => dispatcher.Dispatch(new DoSomethingCommand());
}

Checkout Mando.Example for a working example.