python-dependency-injector/examples/di_demo/demo.py
2020-09-03 23:21:09 -04:00

39 lines
797 B
Python

from dependency_injector import containers, providers
class ApiClient:
def __init__(self, api_key: str, timeout: int):
self.api_key = api_key
self.timeout = timeout
class Service:
def __init__(self, api_client: ApiClient):
self.api_client = api_client
class Container(containers.DeclarativeContainer):
config = providers.Configuration()
api_client = providers.Singleton(
ApiClient,
api_key=config.api_key,
timeout=config.timeout.as_int(),
)
service = providers.Factory(
Service,
api_client=api_client,
)
if __name__ == '__main__':
container = Container()
container.config.api_key.from_env('API_KEY')
container.config.timeout.from_env('TIMEOUT')
service = container.service()