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python-dependency-injector/examples/miniapps/fastapi-redis/README.rst

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Async resources and injections (#352) * 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
2021-01-11 03:26:15 +03:00
FastAPI + Redis + Dependency Injector Example
=============================================
This is a `FastAPI <https://docs.python.org/3/library/asyncio.html>`_
+ `Redis <https://redis.io/>`_
+ `Dependency Injector <https://python-dependency-injector.ets-labs.org/>`_ example application.
Run
---
Build the Docker image:
.. code-block:: bash
docker-compose build
Run the docker-compose environment:
.. code-block:: bash
docker-compose up
The output should be something like:
.. code-block::
redis_1 | 1:C 04 Jan 2021 02:42:14.115 # oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo
redis_1 | 1:C 04 Jan 2021 02:42:14.115 # Redis version=6.0.9, bits=64, commit=00000000, modified=0, pid=1, just started
redis_1 | 1:C 04 Jan 2021 02:42:14.115 # Configuration loaded
redis_1 | 1:M 04 Jan 2021 02:42:14.116 * Running mode=standalone, port=6379.
redis_1 | 1:M 04 Jan 2021 02:42:14.116 # WARNING: The TCP backlog setting of 511 cannot be enforced because /proc/sys/net/core/somaxconn is set to the lower value of 128.
redis_1 | 1:M 04 Jan 2021 02:42:14.116 # Server initialized
redis_1 | 1:M 04 Jan 2021 02:42:14.117 * Loading RDB produced by version 6.0.9
redis_1 | 1:M 04 Jan 2021 02:42:14.117 * RDB age 1 seconds
redis_1 | 1:M 04 Jan 2021 02:42:14.117 * RDB memory usage when created 0.77 Mb
redis_1 | 1:M 04 Jan 2021 02:42:14.117 * DB loaded from disk: 0.000 seconds
redis_1 | 1:M 04 Jan 2021 02:42:14.117 * Ready to accept connections
redis_1 | 1:signal-handler (1609728137) Received SIGTERM scheduling shutdown...
redis_1 | 1:M 04 Jan 2021 02:42:17.984 # User requested shutdown...
redis_1 | 1:M 04 Jan 2021 02:42:17.984 # Redis is now ready to exit, bye bye...
redis_1 | 1:C 04 Jan 2021 02:42:22.035 # oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo
redis_1 | 1:C 04 Jan 2021 02:42:22.035 # Redis version=6.0.9, bits=64, commit=00000000, modified=0, pid=1, just started
redis_1 | 1:C 04 Jan 2021 02:42:22.035 # Configuration loaded
redis_1 | 1:M 04 Jan 2021 02:42:22.037 * Running mode=standalone, port=6379.
redis_1 | 1:M 04 Jan 2021 02:42:22.037 # WARNING: The TCP backlog setting of 511 cannot be enforced because /proc/sys/net/core/somaxconn is set to the lower value of 128.
redis_1 | 1:M 04 Jan 2021 02:42:22.037 # Server initialized
redis_1 | 1:M 04 Jan 2021 02:42:22.037 * Loading RDB produced by version 6.0.9
redis_1 | 1:M 04 Jan 2021 02:42:22.037 * RDB age 9 seconds
redis_1 | 1:M 04 Jan 2021 02:42:22.037 * RDB memory usage when created 0.77 Mb
redis_1 | 1:M 04 Jan 2021 02:42:22.037 * DB loaded from disk: 0.000 seconds
redis_1 | 1:M 04 Jan 2021 02:42:22.037 * Ready to accept connections
example_1 | INFO: Started server process [1]
example_1 | INFO: Waiting for application startup.
example_1 | INFO: Application startup complete.
example_1 | INFO: Uvicorn running on http://0.0.0.0:8000 (Press CTRL+C to quit)
Test
----
This application comes with the unit tests.
To run the tests do:
.. code-block:: bash
docker-compose run --rm example py.test fastapiredis/tests.py --cov=fastapiredis
The output should be something like:
.. code-block::
platform linux -- Python 3.8.6, pytest-6.2.1, py-1.10.0, pluggy-0.13.1
rootdir: /code
plugins: cov-2.10.1, asyncio-0.14.0
collected 1 item
fastapiredis/tests.py . [100%]
----------- coverage: platform linux, python 3.8.6-final-0 -----------
Name Stmts Miss Cover
-------------------------------------------------
fastapiredis/__init__.py 0 0 100%
fastapiredis/application.py 15 0 100%
fastapiredis/containers.py 6 0 100%
fastapiredis/redis.py 7 4 43%
fastapiredis/services.py 7 3 57%
fastapiredis/tests.py 18 0 100%
-------------------------------------------------
TOTAL 53 7 87%
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