Services

Overview

Services are at the center in Funkallero. The main property that defines a service, is the fact that it can be injected into other services.

In the context of web APIs, it's quite easy to think of two distinct types of services: Singleton and Scoped. The former is instantiated once. The latter is instantiated per request and is always injected with the request as an instance member.

This of course has a direct influence on the lifetime of a given service instance but it also introduces the following constraint:

Singleton services can only have other singleton services as injection dependencies. Scoped services can have other scoped services as well as singletons as dependencies.

A bunch of defaults services are provided but any service can be extended/overwritten and custom services can be easily added.

At least two singleton services must always be registered, a MediatorService and a DataContextService.

Those two services were created by the init command before.

Interfaces

Known services are defined here.

Known services with default implementation is defined here.