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* Add support of async injections into wiring * Add support of async functions and async generators for resources * Update resource provider typing stub for stutdown * Add resource base class for async resources * Fix tests * Add tests for async injections in wiring @inject * Refactor provider tests * Add tests for async resources * Rework async resources callbacks to .add_done_callback() style (fixes pypy3 issue) * Add awaits into async resource class test * Refactor FastAPI tests * Implement async resources initialization in container * Move container async resource tests to a separate module for Python 3.6+ * Fix init async resources in container on Python 2 * Add first dirty async injections implementation * Fix isawaitable error * Turm asyncio import to conditional for safer Py2 usage * Refactor kwargs injections * Implement positional injections, add tests and make refactoring * Implement attribute injections and add tests * Add singleton implementation + tests for all singleton types * Implement injections in thread-local and thread-safe singleton providers * Update .provided + fix resource concurent initialization issue * Implement async mode for Dependency provider * Add async mode for the provider * Add overload for Factory typing * Add typing stubs for async resource * Refactor abstract* providers __call__() * Add async mode API + tests * Add typing stubs & tests for async mode API * Add tests for async mode auto configuration * Refactor Provider.__call__() to use async mode api * Refactor Dependency provider to use async mode api * Add tests for Dependency provider async mode * Add support of async mode for FactoryAggregate provider + tests * Refactor Singleton provider to use async mode api * Refactor ThreadSafeSingleton provider to use async mode api * Refactor ThreadLocalSingleton provider to use async mode api * Finish Singleton refactoring to use async mode api * Refactor Resource provider to use async mode api * Add Provider.async_() method + tests * Add typing stubs for async_() method + tests * Refactor Singleton typing stubs to return singleton from argument methods * Refactor provider typing stubs * Improve resource typing stub * Add tests for async context kwargs injections * Fix typo in resource provider tests * Cover shutdown of not initialized resource * Add test to cover resource initialization with an error * Fix Singleton and ThreadLocalSingleton to handle initialization errors * Add FastAPI + Redis example * Make cosmetic fixes to FastAPI + Redis example * Add missing development requirements * Update module docblock in fastapi + redis example * Add FastAPI + Redis example docs * Add references to FastAPI + Redis example * Refactor resource docs * Add asynchronous resources docs * Refactor wiring docs * Add async injections docs for wiring * Add async injections page and update docs index, readme, and key features pages * Add providers async injections example * Add docs on provider async mode enabling * Reword async provider docs * Add provider async mode docs * Add cross links to async docs * Mute flake8 errors in async provider examples * Update changelog * Make cosmetic fix to containers.pyx
56 lines
1.4 KiB
ReStructuredText
56 lines
1.4 KiB
ReStructuredText
.. _providers:
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Providers
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=========
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Providers help to assemble the objects. They create objects and inject the dependencies.
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Each provider is a callable. You call the provider like a function when you need to create an
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object. Provider retrieves the underlying dependencies and inject them into the created object.
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It causes the cascade effect that helps to assemble object graphs. See ``Factory``, ``Singleton``,
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``Callable`` and other provider docs below.
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.. code-block:: bash
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provider1()
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│
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├──> provider2()
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│
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├──> provider3()
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│ │
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│ └──> provider4()
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│
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└──> provider5()
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│
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└──> provider6()
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Another providers feature is an overriding. You can override any provider with another provider.
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This helps in testing. This also helps in overriding API clients with stubs for the development
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or staging environment. See the example at :ref:`provider-overriding`.
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If you need to inject not the whole object but the parts see :ref:`provided-instance`.
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To create a new provider see :ref:`create-provider`.
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Providers module API docs - :py:mod:`dependency_injector.providers`
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.. toctree::
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:maxdepth: 2
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factory
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singleton
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callable
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coroutine
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object
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list
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dict
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configuration
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resource
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selector
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dependency
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overriding
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provided_instance
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custom
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async
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typing_mypy
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