bubdm/mediatr.commandbus.abstractions

Command bus abstractions for MediatR

MediatR.CommandBus.Abstractions

Purpose

The sole intention of this library, is to provide more explict abstractions around common Command Bus objects, such as ICommand, IQuery, and IEvent to MediatR in an unobtrusive way.

Installation

This project is exposed as a NuGet package for your convenience. If you would like more information on installing the NuGet package, please refer to the installation section of the Wiki.

Target Frameworks

You can use this in your .Net Framework, .Net Standard, and .Net Core apps that are, or are planning, to use MediatR.

Example Usage

These interfaces and implementations are just wrappers around the base IRequest and IRequestHandler interfaces that MediatR provides.

Notice, in the Command example below, where we simple inherit from ICommand and ICommandHandler instead of IRequest and IRequestHandler respectively.

Command

public class SetCustomerInactiveCommand : ICommand<Customer>
{
    public Customer Customer { get; set; }
}

Command Handler

public class SetCustomerInactiveCommandHandler : ICommandHandler<SetCustomerInactiveCommand, Customer>
{
    private readonly ICustomerCommandRepository repository;

    public Handler(ICustomerCommandRepository repository)
    {
        this.repository = repository;
    }

    public async Task<Customer> Handle(SetCustomerInactiveCommand command, CancellationToken cancellationToken)
    {
        command.Customer.IsActive = false;

        return await this.repository.UpdateAsync(command.Customer.Id, command.Customer, cancellationToken);
    }
}

Command Invocation

var command = new new SetCustomerInactiveCommand { Customer = someCustomer };

await Mediator.Send(command);

Want More?

For more examples, and to try this out for yourself, clone or download the repository and look at the solution in the tests folder.

For more information, please check out the Wiki.