Messager.NET

Overview

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Warning

THE PROJECT IS IN EARLY DEVELOPMENT, SO BUGS AND UB ARE INEVITABLE, AS WELL AS BAD CODE OR OTHER ERRORS

A lightweight and fast messaging system (pub/sub) for .NET 10 with support for:

• Keyed and unkeyed typed events;
• Synchronous and asynchronous senders/receivers;
• Lazy broker creation for each event type;
• Optional DI integration via separate packages;
• Single point of contact — Exchange.

The goal is simple, transparent, and thread-safe event exchange between services/modules without unnecessary coupling.

Roadmap

• Refactor the code to make it more readable.
• Add self-made code analyzers for preventing common mistakes.
• Expand integrations for additional DI providers beyond Microsoft.Extensions.DependencyInjection.
• Support for middleware and event pipelines (logging, filtering, retrievals).
• Other message handling options (e.g., Channel, IObservable).
• Enhanced diagnostics and metrics for brokers and subscribers.
• Enhanced subscriber error handling policies.

How it works

Pub/Sub

Simple

• ISender
• IReceiver

Keyed

• ISender<TKey, TEvent>
• IReceiver<TKey, TEvent>

Async Simple

• IAsyncSender
• IAsyncReceiver

Async Keyed

• IAsyncSender<TKey, TEvent>
• IAsyncReceiver<TKey, TEvent>

Request

Simple

• IRequest<TIn, TOut>

Keyed

• IRequest<TKey, TIn, TOut>

Async Simple

• IAsyncRequest<TIn, TOut>

Async Keyed

• IAsyncRequest<TKey, TIn, TOut>

Usage

See

Thanks

• Ideas and inspiration from MessagePipe (Cysharp). My project is essentially a rewrite because I encountered that MessagePipe wasn't working for me.

License

Messager.NET is licensed under the MIT License, see LICENSE for more information.