python-dependency-injector/docs/examples/sanic.rst
2024-09-09 22:23:19 -04:00

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.. _sanic-example:
Sanic example
==============
.. meta::
:keywords: Python,Dependency Injection,Sanic,Example
:description: This example demonstrates a usage of the Sanic and Dependency Injector.
This example shows how to use ``Dependency Injector`` with `Sanic <https://sanic.readthedocs.io/en/latest/>`_.
The example application is a REST API that searches for funny GIFs on the `Giphy <https://giphy.com/>`_.
The source code is available on the `Github <https://github.com/ets-labs/python-dependency-injector/tree/master/examples/miniapps/sanic>`_.
Application structure
---------------------
Application has next structure:
.. code-block:: bash
./
├── giphynavigator/
│ ├── __init__.py
│ ├── __main__.py
│ ├── application.py
│ ├── containers.py
│ ├── giphy.py
│ ├── handlers.py
│ ├── services.py
│ └── tests.py
├── config.yml
└── requirements.txt
Container
---------
Declarative container is defined in ``giphynavigator/containers.py``:
.. literalinclude:: ../../examples/miniapps/sanic/giphynavigator/containers.py
:language: python
Handlers
--------
Handler has dependencies on search service and some config options. The dependencies are injected
using :ref:`wiring` feature.
Listing of ``giphynavigator/handlers.py``:
.. literalinclude:: ../../examples/miniapps/sanic/giphynavigator/handlers.py
:language: python
Application factory
-------------------
Application factory creates container, wires it with the ``handlers`` module, creates
``Sanic`` app and setup routes.
Listing of ``giphynavigator/application.py``:
.. literalinclude:: ../../examples/miniapps/sanic/giphynavigator/application.py
:language: python
Tests
-----
Tests use :ref:`provider-overriding` feature to replace giphy client with a mock ``giphynavigator/tests.py``:
.. literalinclude:: ../../examples/miniapps/sanic/giphynavigator/tests.py
:language: python
:emphasize-lines: 34,61,75
Sources
-------
Explore the sources on the `Github <https://github.com/ets-labs/python-dependency-injector/tree/master/examples/miniapps/sanic>`_.
.. include:: ../sponsor.rst
.. disqus::