MonadicSharp.DIFunctional mediator for .NET

CQRS aligned with MonadicSharp primitives. Handlers return Result — not exceptions. Pipeline behaviors that compose cleanly.

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CQRS Pattern

GitHub

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Query Handlers

IQueryHandler returns Result. Queries that can fail do so explicitly — no null returns, no thrown InvalidOperationException.

Query handler docs

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Command Handlers

ICommandHandler for write operations. Commands compose with validation pipeline behaviors before execution.

Command handler docs

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Pipeline Behaviors

Cross-cutting concerns (validation, logging, caching, authorization) as composable IPipelineBehavior — applied in declaration order.

Pipeline behaviors

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Notifications (Pub/Sub)

INotification for fire-and-forget events. Multiple handlers per notification, no coupling between publishers and subscribers.

Notifications docs

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DI-first

Works out of the box with Microsoft.Extensions.DependencyInjection. Handlers are discovered and registered automatically — no manual mapping required.

Setup guide

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Zero overhead

Standalone mode with no DI container required. Single assembly, no reflection at request time, no code generation — just an interface and a dispatcher.