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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
44 lines
2.0 KiB
ReStructuredText
44 lines
2.0 KiB
ReStructuredText
.. _key-features:
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Key features
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------------
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.. meta::
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:keywords: Python,DI,Dependency injection,IoC,Inversion of Control
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:description: This article describes key features of the Dependency Injector
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framework.
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Key features of the ``Dependency Injector``:
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- **Providers**. Provides ``Factory``, ``Singleton``, ``Callable``, ``Coroutine``, ``Object``,
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``List``, ``Dict``, ``Configuration``, ``Resource``, ``Dependency`` and ``Selector`` providers
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that help assembling your objects. See :ref:`providers`.
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- **Overriding**. Can override any provider by another provider on the fly. This helps in testing
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and configuring dev / stage environment to replace API clients with stubs etc. See
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:ref:`provider-overriding`.
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- **Configuration**. Reads configuration from ``yaml`` & ``ini`` files, environment variables
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and dictionaries. See :ref:`configuration-provider`.
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- **Resources**. Helps with initialization and configuring of logging, event loop, thread
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or process pool, etc. Can be used for per-function execution scope in tandem with wiring.
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See :ref:`resource-provider`.
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- **Containers**. Provides declarative and dynamic containers. See :ref:`containers`.
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- **Wiring**. Injects dependencies into functions and methods. Helps integrating with
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other frameworks: Django, Flask, Aiohttp, Sanic, FastAPI, etc. See :ref:`wiring`.
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- **Asynchronous**. Supports asynchronous injections. See :ref:`async-injections`.
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- **Typing**. Provides typing stubs, ``mypy``-friendly. See :ref:`provider-typing`.
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- **Performance**. Fast. Written in ``Cython``.
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- **Maturity**. Mature and production-ready. Well-tested, documented and supported.
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The framework stands on the `PEP20 (The Zen of Python) <https://www.python.org/dev/peps/pep-0020/>`_ principle:
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.. code-block:: plain
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Explicit is better than implicit
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You need to specify how to assemble and where to inject the dependencies explicitly.
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The power of the framework is in a simplicity.
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``Dependency Injector`` is a simple tool for the powerful concept.
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.. disqus::
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