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https://github.com/ets-labs/python-dependency-injector.git
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43 lines
1.2 KiB
Python
43 lines
1.2 KiB
Python
"""Example of dependency injection and password hashing in Python."""
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import passlib.hash
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import dependency_injector.containers as containers
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import dependency_injector.providers as providers
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class UsersService:
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"""Users service."""
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def __init__(self, password_hasher):
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"""Initialize instance."""
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self._password_hasher = password_hasher
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def create_user(self, name, password):
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"""Create user with hashed password."""
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hashed_password = self._password_hasher(password)
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return dict(name=name, password=hashed_password)
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class Container(containers.DeclarativeContainer):
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"""Inversion of control container."""
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password_hasher = providers.Callable(
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passlib.hash.sha256_crypt.hash,
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salt_size=16,
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rounds=10000)
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users_service = providers.Factory(
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UsersService,
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password_hasher=password_hasher.provider)
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if __name__ == '__main__':
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container = Container()
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users_service = container.users_service()
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user1 = users_service.create_user(name='Roman', password='secret1')
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user2 = users_service.create_user(name='Vitaly', password='secret2')
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print(user1, user2)
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