Minimal API Support

Seeing the recent advancements on the minimal APIs within ASP.NET Core.

It would be really cool if we could look at some extension methods that sit on top of this and provide a way to map IRequest<T> handlers directly to http routes without having to use a controller.

I expect this would be a set of extension methods.

[srollinet]

I try to do something similar, with extension methods that allow to map a route to a an IRequest.

Something like that

app.MediatR().MapGet("/hello", (string name) => new HelloQuery(name));

Which will be the equivalent of

app.MapGet("/hello", (string name, IMediator mediator, CancellationToken token) =>
     mediator.Send(new HelloQuery(name), token)
);

The idea is to have something similar as the original API, with less boilerplate.

The problem is that I don’t know the correct approach to use… I tried to create a dynamic delegate that wrap the original one and that adds the mediator and the token, but I don’t think it is a good approach, and I have a lack of knowledge in this domain so I struggled with lot of problems.

Maybe the most simple solution is to have a middleware that handles the IRequest, but with this solution, I don’t know how Swagger will know the actual return type of the method. I will try to dig a bit.

[srollinet]

@vip32 No, I haven’t done anything. And I will probably wait for asp.net core 7 because the new [AsParameters] attribute will simplify a lot what I want to achieve

https://devblogs.microsoft.com/dotnet/asp-net-core-updates-in-dotnet-7-preview-5/