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* Add wiring (#294) * Add wiring module * Fix code style * Fix package test * Add version fix * Try spike for 3.6 * Try another fix with metaclass * Downsample required version to 3.6 * Introduce concept with annotations * Fix bugs * Add debug message * Add extra tests * Add extra debugging * Update config resolving * Remove 3.6 generic meta fix * Fix Flake8 * Add spike for 3.6 * Add Python 3.6 spike * Add unwire functionality * Add support of corouting functions * Bump version to 4.0 * Updaet demo example * Add pydocstyle ignore for demo * Add flake8 ignore for demo * Update aiohttp example * Update flask example * Rename aiohttp example directory * Rename views module to handlers in aiohttp example * Add sanic example * Remove not needed images * Update demo * Implement wiring for Provide[foo.provider] * Implement Provide[foo.provided.bar.baz.call()] * Make flake8 happy * Wiring refactoring (#296) * Refactor wiring * Add todos to wiring * Implement wiring of config invariant * Implement sub containers wiring + add tests * Add test for wiring config invariant * Add container.unwire() typing stub * Deprecate ext package modules and remove types module * Deprecate provider.delegate() method * Add __all__ for wiring module * Add protection for wiring only declarative container instances * Bump version to 4.0.0a2 * Add wiring docs * Add wiring of class methods * Remove unused import * Add a note on individuals import to wiring docs * Add minor improvement to wiring doc * Update DI in Python page * Update key features * Update README concep and FAQ * Add files via upload * Update README.rst * Update README.rst * Update README.rst * Update docs index page * Update README * Remove API docs for flask and aiohttp ext * Add wiring API docs * Update docs index * Update README * Update readme and docs index * Change wording in README * Django example (#297) * Add rough django example * Remove sqlite db * Add gitignore * Fix flake8 and pydocstyle errors * Add tests * Refactor settings * Move web app to to the root of the project * Add bootstrap 4 * Add doc blocks for web app * Add coverage * Fix typo in flask * Remove not needed newlines * Add screenshot * Update django app naming * Add django example to the docs * Update changelog * Update Aiohttp example * Add sanic example to the docs * Make a little fix in django example docs page * Add flask example to the docs * Add aiohttp example to the docs * Update installation docs page * Fix .delegate() deprecation * Refactor movie lister to use wiring * Make micro cosmetic changes to flask, aiohttp & sanic examples * Refactor single container example to use wiring * Refactor multiple container example to use wiring * Add return type to main() in application examples * Refactor decoupled packages example to use wiring * Refactor code layout for DI demo example * Update wiring feature message * Add more links to the examples * Change code layout in miniapps * Update sanic example * Update miniapp READMEs * Update wiring docs * Refactor part of cli tutorial * Refactor CLI app tutorial * Update test coverage results in movie lister example and tutorial * Make some minor updates to aiohttp and cli tutorials * Refactor flask tutorial * Make cosmetic fix in flask example * Refactor Flask tutorial: Connect to the GitHub * Refactor Flask tutorial: Search service * Refactor Flask tutorial: Inject search service into view * Refactor Flask tutorial: Make some refactoring * Finish flask tutorial refactoring * Update tutorials * Refactor asyncio monitoring daemon example application * Fix tutorial links * Rename asyncio miniapp * Rename tutorial image dirs * Rename api docs tol-level page * Refactor initial sections of asyncio daemon tutorial * Refactor asyncio tutorial till Example.com monitor section * Refactor asyncio tutorial example.com monitor section * Refactor asyncio tutorial httpbin.org monitor tutorial * Refactor tests section of asyncio daemon tutorial * Update conclusion of asyncio daemon tutorial * Rename tutorial images * Make cosmetic update to flask tutorial * Refactor aiohttp tutorial: Minimal application section * Refactor aiohttp tutorial: Giphy API client secion * Refactor aiohttp tutorial secion: Make the search work * Refactor aiohttp tutorial tests section * Refactor aiohttp tutorial conclusion * Upgrade Cython to 0.29.21 * Update changelog * Update demo example * Update wording on index pages * Update changelog * Update code layout for main demo
88 lines
2.3 KiB
ReStructuredText
88 lines
2.3 KiB
ReStructuredText
.. _flask-example:
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Flask example
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=============
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.. meta::
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:keywords: Python,Dependency Injection,Flask,Example
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:description: This example demonstrates a usage of the Flask and Dependency Injector.
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This example shows how to use ``Dependency Injector`` with `Flask <https://flask.palletsprojects.com/en/1.1.x/>`_.
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The example application helps to search for repositories on the Github.
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.. image:: images/flask.png
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:width: 100%
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:align: center
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The source code is available on the `Github <https://github.com/ets-labs/python-dependency-injector/tree/master/examples/miniapps/flask>`_.
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:ref:`flask-tutorial` demonstrates how to build this application step-by-step.
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Application structure
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---------------------
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Application has next structure:
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.. code-block:: bash
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./
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├── githubnavigator/
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│ ├── templates
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│ │ ├── base.html
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│ │ └── index.py
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│ ├── __init__.py
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│ ├── application.py
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│ ├── containers.py
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│ ├── services.py
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│ ├── tests.py
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│ └── views.py
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├── config.yml
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└── requirements.txt
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Container
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---------
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Declarative container is defined in ``githubnavigator/containers.py``:
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.. literalinclude:: ../../examples/miniapps/flask/githubnavigator/containers.py
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:language: python
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Views
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-----
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View has dependencies on search service and some config options. The dependencies are injected
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using :ref:`wiring` feature.
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Listing of ``githubnavigator/views.py``:
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.. literalinclude:: ../../examples/miniapps/flask/githubnavigator/views.py
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:language: python
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Application factory
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-------------------
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Application factory creates container, wires it with the ``views`` module, creates
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``Flask`` app and setup routes.
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Listing of ``githubnavigator/application.py``:
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.. literalinclude:: ../../examples/miniapps/flask/githubnavigator/application.py
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:language: python
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Tests
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-----
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Tests use :ref:`provider-overriding` feature to replace github client with a mock ``githubnavigator/tests.py``:
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.. literalinclude:: ../../examples/miniapps/flask/githubnavigator/tests.py
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:language: python
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:emphasize-lines: 44,67
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Sources
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-------
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Explore the sources on the `Github <https://github.com/ets-labs/python-dependency-injector/tree/master/examples/miniapps/flask>`_.
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.. disqus::
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