python-dependency-injector/examples/providers/configuration/configuration_pydantic.py
Roman Mogylatov 15fa6c301e
Pydantic settings support (#388)
* Add implementation and basic test

* Add full test coverage + bugfix

* Add test coverage for .from_yaml() method

* Update setup.py, tox and dev requirements

* Stop running pydantic tests on Python 3.5 and below

* Remove pydantic from tox Python < 3.6

* Add example and docs

* Update features block

* Add extra test

* Update changelog
2021-02-03 09:21:32 -05:00

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Python

"""`Configuration` provider values loading example."""
import os
from dependency_injector import containers, providers
from pydantic import BaseSettings, Field
# Emulate environment variables
os.environ['AWS_ACCESS_KEY_ID'] = 'KEY'
os.environ['AWS_SECRET_ACCESS_KEY'] = 'SECRET'
class AwsSettings(BaseSettings):
access_key_id: str = Field(env='aws_access_key_id')
secret_access_key: str = Field(env='aws_secret_access_key')
class Settings(BaseSettings):
aws: AwsSettings = AwsSettings()
optional: str = Field(default='default_value')
class Container(containers.DeclarativeContainer):
config = providers.Configuration()
if __name__ == '__main__':
container = Container()
container.config.from_pydantic(Settings())
assert container.config.aws.access_key_id() == 'KEY'
assert container.config.aws.secret_access_key() == 'SECRET'
assert container.config.optional() == 'default_value'