AppForeach Framework

AppForeach is open-source reference implementation of microservices architecture for .NET Platform. Main design goals are unobstructive cross-cutting concerns and quality of service attributes with emphasys on developer productivity.

Overview

Framework allows to create a business operation definition that is free from any infrastructure services and is easily unit testable.

public class CreateInvoiceCommand
{
    // ... constructor and services injection ...

    public async Task<CreateInvoiceOutput> Execute(CreateInvoiceInput input)
    {
        var entity = inputMapping.MapFrom(input);

        entity.Number = invoiceNumberService.GenerateInvoiceNumber(entity);

        await invoiceRepository.Create(entity);

        return outputMapping.MapFrom(entity);
    }
}

Such component can now be exposed as an endpoint, for example as a regular ASP.NET Web API method.

public class InvoiceController : WebApiController
{
    [HttpPost]
    public async Task<ObjectResult> Create(CreateInvoiceInput input)
    {
        return await operationMediator.Execute(input).Ok();
    }
}

Alternatively same component can be registered to listen for service bus messages.

public class InvoiceMessageHost : MessageHost
{
    public InvoiceMessageHost()
    {
        Consume<CreateInvoiceInput>();
    }
}

In both cases framework executes a set of pipelined middlewares between endpoint definition and actual business component. This enriches resulting software with needed non-functional features like logging, audit, authorization and unit of work management while keeping domain code clean.

Documentation

Several documents describe architecture and main features of the framework.