Aliases

rodi supports service resolution by name and by aliases.

services = arrange_cats_example()

class UsingAlias:

    def __init__(self, example, settings):
        self.example = example
        self.settings = settings

class Foo:

    def __init__(self):
        pass

class ServiceSettings:

    def __init__(self, setting_one, setting_two):
        self.setting_one = setting_one
        self.setting_two = setting_two

services.add_exact_transient(UsingAlias)
services.add_exact_transient(Foo)
services.add_instance(ServiceSettings('aaa', 'bbb'))

# arrange an exact alias for UsingAlias class init parameter:
services.add_alias('example', Foo)
services.add_alias('settings', ServiceSettings)

provider = services.build_provider()
u = provider.get(UsingAlias)

assert isinstance(u, UsingAlias)
assert isinstance(u.example, Foo)
assert isinstance(u.settings, ServiceSettings)