Basic implementation of CQRS pattern for .NET Core web APIs.

v1.0.0-rc2:

• Bypass controllers and execute Queries and Commands directly
• Supports simple (no params) and complex (with params) Queries and Commands
• Automatically parses params - Queries uses query string and Commands uses request body (json)
• Supports DI using default IServiceProvider

v1.0.0.-rc3:

• Fire & forget command handlers

1. Get the lib package from nuget.org:

dotnet add package ASPNET.CQRS --version 1.0.0-rc2

2. Then you need to setup the CQRSOptions in yours ConfigureServices method:

services.AddCQRS(options =>
{
    options.BasePath = "/api";
    options.Assemblies = new[] { Assembly.GetExecutingAssembly() };
});

3. After that, in yours Startup's Configure method you need to configure CQRS's feature and CQRS's middleware:

app.UseCQRS();

The example configuration above will load queries and commands from the same assembly as yours Startup class.

4. Once you have done the configuration, you can add your first query:

[CQRSRoute("/ping")]
public class PingQuery : IQueryHandler
{
    public Task Handle()
    {
        // noop
        return Task.CompletedTask;
    }
}

5. And then test it with your favourite tool to test web APIs, cor example with cURL:

curl --request GET --url https://localhost:5001/api/ping