python-dependency-injector/examples/miniapps/ghnav-flask
Roman Mogylatov e0d81c2d28
Aiohttp integration (#270)
* Add aiohttp extension module

* Add giphynav-aiohttp app

* Add missing docstrings

* Remove print() call

* Remove not needed import from flask extension tests

* Improve coroutine provider tests

* Add aiohttp extension tests

* Update tox.ini

* Add aiohttp extras

* Try fix Python 3.4 tests

* Try fix 3.6 tests

* Stop running coroutine tests for Python 3.4

* Rename tests

* Remove type hints

* Fix pypy and change python version for coverage job to 3.8

* Fix coveralls job

* Try fix Python 3.4, 3.5 tests

* Make coverage job to run 3.5+ tests

* Add tests

* Add readme

* Update the readmes

* Add API docs

* Add API docs page

* Update changelog
2020-07-28 19:19:05 -04:00
..
githubnavigator Flask tutorial (#265) 2020-07-20 16:58:18 -04:00
config.yml Flask tutorial (#265) 2020-07-20 16:58:18 -04:00
README.rst Aiohttp integration (#270) 2020-07-28 19:19:05 -04:00
requirements.txt Flask tutorial (#265) 2020-07-20 16:58:18 -04:00
screenshot.png Flask tutorial (#265) 2020-07-20 16:58:18 -04:00

Flask Dependency Injection Example
==================================

Application ``githubnavigator`` is a `Flask <https://flask.palletsprojects.com/>`_ +
`Dependency Injector <http://python-dependency-injector.ets-labs.org/>`_ application.

.. image:: screenshot.png

Run
---

Create virtual environment:

.. code-block:: bash

   virtualenv venv
   . venv/bin/activate

Install requirements:

.. code-block:: bash

    pip install -r requirements.txt

To run the application do:

.. code-block:: bash

    export FLASK_APP=githubnavigator.application
    export FLASK_ENV=development
    flask run

The output should be something like:

.. code-block::

    * Serving Flask app "githubnavigator.application" (lazy loading)
    * Environment: development
    * Debug mode: on
    * Running on http://127.0.0.1:5000/ (Press CTRL+C to quit)
    * Restarting with fsevents reloader
    * Debugger is active!
    * Debugger PIN: 473-587-859

After that visit http://127.0.0.1:5000/ in your browser.

.. note::


   Github has a rate limit. When thre rate limit is exceed you will see an exception
   ``github.GithubException.RateLimitExceededException``. For unauthenticated requests, the rate
   limit allows for up to 60 requests per hour. To extend the limit to 5000 requests per hour you
   need to set personal access token.

   It's easy:

   - Follow this `guide <https://docs.github.com/en/github/authenticating-to-github/creating-a-personal-access-token>`_ to create a token.
   - Set a token to the environment variable:

   .. code-block:: bash

      export GITHUB_TOKEN=<your token>

   - Restart the app with ``flask run``

   `Read more on Github rate limit <https://developer.github.com/v3/#rate-limiting>`_

Test
----

This application comes with the unit tests.

To run the tests do:

.. code-block:: bash

   py.test githubnavigator/tests.py --cov=githubnavigator

The output should be something like:

.. code-block::

   platform darwin -- Python 3.8.3, pytest-5.4.3, py-1.9.0, pluggy-0.13.1
   plugins: flask-1.0.0, cov-2.10.0
   collected 2 items

   githubnavigator/tests.py ..                                     [100%]

   ---------- coverage: platform darwin, python 3.8.3-final-0 -----------
   Name                             Stmts   Miss  Cover
   ----------------------------------------------------
   githubnavigator/__init__.py          0      0   100%
   githubnavigator/application.py      11      0   100%
   githubnavigator/containers.py       13      0   100%
   githubnavigator/services.py         14      0   100%
   githubnavigator/tests.py            32      0   100%
   githubnavigator/views.py             7      0   100%
   ----------------------------------------------------
   TOTAL                               77      0   100%