python-dependency-injector/examples/miniapps/fastapi-redis/README.rst
Roman Mogylatov feed916f46
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
2021-01-10 19:26:15 -05:00

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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%