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6eff213a68
* Add bootstrap and remove created at from ghnav-flask app * Update readme * Add logo to the docs * Update key features description * Update README * Change headers of API docs * Add alabaster theme config * Update docs index * Add tutorials section * Update what is DI page * Update DI in Python page * Update tutorials index page * Update provider docs * Update container docs * Update examples docs
205 lines
6.3 KiB
ReStructuredText
205 lines
6.3 KiB
ReStructuredText
.. figure:: https://raw.githubusercontent.com/wiki/ets-labs/python-dependency-injector/img/logo.svg
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:target: https://github.com/ets-labs/python-dependency-injector
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.. image:: https://img.shields.io/pypi/v/dependency_injector.svg
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:target: https://pypi.org/project/dependency-injector/
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:alt: Latest Version
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.. image:: https://img.shields.io/pypi/l/dependency_injector.svg
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:target: https://pypi.org/project/dependency-injector/
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:alt: License
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.. image:: https://img.shields.io/pypi/pyversions/dependency_injector.svg
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:target: https://pypi.org/project/dependency-injector/
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:alt: Supported Python versions
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.. image:: https://img.shields.io/pypi/implementation/dependency_injector.svg
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:target: https://pypi.org/project/dependency-injector/
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:alt: Supported Python implementations
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.. image:: https://pepy.tech/badge/dependency-injector
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:target: https://pepy.tech/project/dependency-injector
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:alt: Downloads
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.. image:: https://pepy.tech/badge/dependency-injector/month
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:target: https://pepy.tech/project/dependency-injector
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:alt: Downloads
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.. image:: https://pepy.tech/badge/dependency-injector/week
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:target: https://pepy.tech/project/dependency-injector
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:alt: Downloads
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.. image:: https://img.shields.io/pypi/wheel/dependency-injector.svg
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:target: https://pypi.org/project/dependency-injector/
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:alt: Wheel
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.. image:: https://travis-ci.org/ets-labs/python-dependency-injector.svg?branch=master
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:target: https://travis-ci.org/ets-labs/python-dependency-injector
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:alt: Build Status
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.. image:: http://readthedocs.org/projects/python-dependency-injector/badge/?version=latest
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:target: http://python-dependency-injector.ets-labs.org/
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:alt: Docs Status
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.. image:: https://coveralls.io/repos/github/ets-labs/python-dependency-injector/badge.svg?branch=master
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:target: https://coveralls.io/github/ets-labs/python-dependency-injector?branch=master
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:alt: Coverage Status
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What is ``Dependency Injector``?
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================================
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``Dependency Injector`` is a dependency injection framework for Python.
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Why do I need it?
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=================
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``Dependency Injector`` helps you understand and change the structure of the application.
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With the ``Dependency Injector`` you keep **application structure in one place**.
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This place is called **the container**. You use the container to manage all the components of the
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application. All the component dependencies are defined explicitly. This provides the control on
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the application structure. It is **easy to understand and change** it.
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.. figure:: https://raw.githubusercontent.com/wiki/ets-labs/python-dependency-injector/img/di-map.svg
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:target: https://github.com/ets-labs/python-dependency-injector
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*The container is like a map of your application. You always know what depends on what.*
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``Flask`` + ``Dependency Injector`` example application container:
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.. code-block:: python
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from dependency_injector import containers, providers
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from dependency_injector.ext import flask
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from flask import Flask
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from flask_bootstrap import Bootstrap
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from github import Github
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from . import views, services
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class ApplicationContainer(containers.DeclarativeContainer):
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"""Application container."""
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app = flask.Application(Flask, __name__)
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bootstrap = flask.Extension(Bootstrap)
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config = providers.Configuration()
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github_client = providers.Factory(
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Github,
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login_or_token=config.github.auth_token,
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timeout=config.github.request_timeout,
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)
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search_service = providers.Factory(
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services.SearchService,
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github_client=github_client,
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)
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index_view = flask.View(
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views.index,
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search_service=search_service,
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default_search_term=config.search.default_term,
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default_search_limit=config.search.default_limit,
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)
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Running such container looks like this:
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.. code-block:: python
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from .containers import ApplicationContainer
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def create_app():
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"""Create and return Flask application."""
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container = ApplicationContainer()
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container.config.from_yaml('config.yml')
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container.config.github.auth_token.from_env('GITHUB_TOKEN')
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app = container.app()
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app.container = container
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bootstrap = container.bootstrap()
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bootstrap.init_app(app)
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app.add_url_rule('/', view_func=container.index_view.as_view())
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return app
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And testing looks like:
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.. code-block:: python
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from unittest import mock
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import pytest
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from github import Github
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from flask import url_for
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from .application import create_app
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@pytest.fixture
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def app():
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return create_app()
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def test_index(client, app):
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github_client_mock = mock.Mock(spec=Github)
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# Configure mock
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with app.container.github_client.override(github_client_mock):
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response = client.get(url_for('index'))
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assert response.status_code == 200
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# Do more asserts
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See complete example here - `Flask + Dependency Injector Example <https://github.com/ets-labs/python-dependency-injector/tree/master/examples/miniapps/ghnav-flask>`_
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How to install?
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---------------
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- The package is available on the `PyPi`_::
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pip install dependency-injector
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Where is the docs?
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------------------
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- The documentation is available on the `Read The Docs <http://python-dependency-injector.ets-labs.org/>`_
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Have a question?
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----------------
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- Open a `Github Issue <https://github.com/ets-labs/python-dependency-injector/issues>`_
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Found a bug?
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------------
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- Open a `Github Issue <https://github.com/ets-labs/python-dependency-injector/issues>`_
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Want to help?
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-------------
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- |star| Star the ``Dependency Injector`` on the `Github <https://github.com/ets-labs/python-dependency-injector/>`_
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- |new| Start a new project with the ``Dependency Injector``
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- |tell| Tell your friend about the ``Dependency Injector``
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Want to contribute?
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-------------------
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- |fork| Fork the project
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- |pull| Open a pull request to the ``develop`` branch
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.. _PyPi: https://pypi.org/project/dependency-injector/
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.. |star| unicode:: U+2B50 U+FE0F .. star sign1
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.. |new| unicode:: U+1F195 .. new sign
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.. |tell| unicode:: U+1F4AC .. tell sign
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.. |fork| unicode:: U+1F500 .. fork sign
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.. |pull| unicode:: U+2B05 U+FE0F .. pull sign
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