python-dependency-injector/examples/providers/callable_reusable.py

39 lines
947 B
Python

"""`Callable` provider example with configurable parameters"""
import passlib.hash
from dependency_injector import containers, providers
from dependency_injector.wiring import Provide
class Service:
def __init__(self, hasher):
self.hasher = hasher
def hash(self, value):
return self.hasher(value)
class Container(containers.DeclarativeContainer):
password_hasher = providers.Callable(
passlib.hash.sha256_crypt.hash,
salt_size=16,
rounds=10000,
)
password_verifier = providers.Callable(passlib.hash.sha256_crypt.verify)
service = providers.Factory(
Service,
hasher=password_hasher.provider
)
if __name__ == "__main__":
service: Service = Provide["service"]
container = Container()
container.wire(modules=[__name__])
hashed_password = service.hash("super secret")
assert container.password_verifier("super secret", hashed_password)