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42 lines
1.6 KiB
Python
42 lines
1.6 KiB
Python
"""Mail service and user registration DI container example."""
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from dependency_injector.containers import DeclarativeContainer
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from dependency_injector.providers import Callable, Singleton
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import example
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class Container(DeclarativeContainer):
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"""DI container."""
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mail_service = Singleton(example.MailService,
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host='localhost',
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port=587,
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login='my_login',
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password='super_secret_password')
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add_user = Callable(example.add_user,
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mailer=mail_service)
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if __name__ == '__main__':
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print('Using real mail service:')
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Container.add_user('sample@mail.com', 'password')
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# Using real mail service:
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# Connecting server localhost:587 with my_login:super_secret_password
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# Sending "Your password is password" to "sample@mail.com"
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print('Using mail service stub:')
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Container.add_user('sample@mail.com', 'password',
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mailer=example.MailServiceStub())
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# Using mail service stub:
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# Emulating sending "Your password is password" to "sample@mail.com"
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# Also you can override provider by another provider:
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Container.mail_service.override(Singleton(example.MailServiceStub))
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print('Using mail service stub by overriding mail service provider:')
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Container.add_user('sample@mail.com', 'password')
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# Using mail service stub by overriding mail service provider:
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# Emulating sending "Your password is password" to "sample@mail.com"
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Container.mail_service.reset_override() # Resetting provider overriding
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