Service

class asab.Service(app)

Service objects are registered at the service registry, managed by an application object. See Application.Services for more details.

An example of a typical service class skeleton:

class MyService(asab.Service):

    def __init__(self, app, service_name):
        super().__init__(app, service_name)
        ...

    async def initialize(self, app):
        ...


    async def finalize(self, app):
        ...


    def service_method(self):
        ....

This is how a service is created and registered:

mysvc = MyService(app, "my_service")

This is how a service is located and used:

mysvc = app.get_service("my_service")
mysvc.service_method()

Service.Name

Each service is identified by its name.

Service.App

A reference to an Application object instance.

Lifecycle

Service.initialize(app)

Called when the service is initialized. It can be overriden by an user.

Service.finalize(app)

Called when the service is finalized e.g. during application exit-time. It can be overriden by an user.