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Roman Mogylatov
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README.rst
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README.rst
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@ -1,28 +1,48 @@
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.. 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://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://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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@ -30,370 +50,100 @@
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What is ``Dependency Injector``?
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================================
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``Dependency Injector`` is a dependency injection microframework for Python.
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It was designed to be a unified and developer-friendly tool that helps
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implement a dependency injection design pattern in a formal, pretty, and
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Pythonic way.
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``Dependency Injector`` is a dependency injection framework for Python.
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The key features of the *Dependency Injector* framework are:
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Why do I need it?
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=================
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+ Easy, smart, and pythonic style.
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+ Obvious and clear structure.
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+ Extensibility and flexibility.
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+ High performance.
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+ Memory efficiency.
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+ Thread safety.
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+ Documented.
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+ Semantically versioned.
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``Dependency Injector`` helps you improve application structure.
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*Dependency Injector* containers and providers are implemented as C extension
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types using Cython.
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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 application. All the component dependencies are defined explicitly. This provides the control on 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:
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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 github import Github
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from . import services, views
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Installation
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------------
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class Application(containers.DeclarativeContainer):
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"""Application container."""
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The *Dependency Injector* library is available on `PyPi`_::
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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 = providers.Callable(
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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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app = providers.Factory(
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flask.create_app,
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name=__name__,
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routes=[
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flask.Route('/', view_provider=index_view),
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],
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)
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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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Documentation
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-------------
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The *Dependency Injector* documentation is hosted on ReadTheDocs:
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- `User's guide`_
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- `API docs`_
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Dependency injection
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--------------------
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`Dependency injection`_ is a software design pattern that implements
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`Inversion of control`_ to resolve dependencies. Formally, if object **A**
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depends on object **B**, object **A** must not create or import object **B**
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directly. Instead of this object **A** must provide a way to *inject*
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object **B**. The responsibilities of objects creation and dependency
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injection are delegated to external code - the *dependency injector*.
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Popular terminology of the dependency injection pattern:
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+ Object **A**, which depends on object **B**, is often called -
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the *client*.
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+ Object **B**, which is depended on, is often called - the *service*.
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+ External code that is responsible for creation of objects and injection
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of dependencies is often called - the *dependency injector*.
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There are several ways to inject a *service* into a *client*:
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+ by passing it as an ``__init__`` argument (constructor / initializer
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injection)
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+ by setting it as an attribute's value (attribute injection)
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+ by passing it as a method's argument (method injection)
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The dependency injection pattern has few strict rules that should be followed:
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+ The *client* delegates to the *dependency injector* the responsibility
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of injecting its dependencies - the *service(s)*.
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+ The *client* doesn't know how to create the *service*, it knows only
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the interface of the *service*. The *service* doesn't know that it is used by
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the *client*.
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+ The *dependency injector* knows how to create the *client* and
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the *service*. It also knows that the *client* depends on the *service*,
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and knows how to inject the *service* into the *client*.
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+ The *client* and the *service* know nothing about the *dependency injector*.
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The dependency injection pattern provides the following advantages:
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+ Control of application structure.
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+ Decreased coupling of application components.
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+ Increased code reusability.
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+ Increased testability.
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+ Increased maintainability.
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+ Reconfiguration of a system without rebuilding.
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Example of dependency injection
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-------------------------------
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Let's go through next example:
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.. image:: https://raw.githubusercontent.com/wiki/ets-labs/python-dependency-injector/img/engines_cars/diagram.png
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:width: 100%
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:align: center
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Listing of ``example.engines`` module:
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.. code-block:: python
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"""Dependency injection example, engines module."""
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class Engine:
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"""Example engine base class.
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Engine is a heart of every car. Engine is a very common term and could be
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implemented in very different ways.
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"""
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class GasolineEngine(Engine):
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"""Gasoline engine."""
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class DieselEngine(Engine):
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"""Diesel engine."""
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class ElectricEngine(Engine):
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"""Electric engine."""
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Listing of ``example.cars`` module:
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.. code-block:: python
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"""Dependency injection example, cars module."""
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class Car:
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"""Example car."""
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def __init__(self, engine):
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"""Initializer."""
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self._engine = engine # Engine is injected
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The next example demonstrates the creation of several cars with different engines:
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.. code-block:: python
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"""Dependency injection example, Cars & Engines."""
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import example.cars
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import example.engines
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if __name__ == '__main__':
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gasoline_car = example.cars.Car(example.engines.GasolineEngine())
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diesel_car = example.cars.Car(example.engines.DieselEngine())
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electric_car = example.cars.Car(example.engines.ElectricEngine())
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While the previous example demonstrates the advantages of dependency injection,
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there is a disadvantage demonstrated as well - the creation of a car requires
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additional code to specify its dependencies. However, this disadvantage
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could be avoided by using a dependency injection framework for the creation of
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an inversion of control container (IoC container).
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Here's an example of the creation of several inversion of control containers
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(IoC containers) using *Dependency Injector*:
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.. code-block:: python
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"""Dependency injection example, Cars & Engines IoC containers."""
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import example.cars
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import example.engines
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import dependency_injector.containers as containers
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import dependency_injector.providers as providers
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class Engines(containers.DeclarativeContainer):
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"""IoC container of engine providers."""
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gasoline = providers.Factory(example.engines.GasolineEngine)
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diesel = providers.Factory(example.engines.DieselEngine)
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electric = providers.Factory(example.engines.ElectricEngine)
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class Cars(containers.DeclarativeContainer):
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"""IoC container of car providers."""
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gasoline = providers.Factory(example.cars.Car,
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engine=Engines.gasoline)
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diesel = providers.Factory(example.cars.Car,
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engine=Engines.diesel)
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electric = providers.Factory(example.cars.Car,
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engine=Engines.electric)
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if __name__ == '__main__':
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gasoline_car = Cars.gasoline()
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diesel_car = Cars.diesel()
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electric_car = Cars.electric()
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Dependency Injector structure
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-----------------------------
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*Dependency Injector* is a microframework and has a simple structure.
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There are two main entities: providers and containers.
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.. image:: https://raw.githubusercontent.com/wiki/ets-labs/python-dependency-injector/img/internals.png
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:width: 100%
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:align: center
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Providers
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~~~~~~~~~
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Providers describe strategies of accessing objects. They define how particular
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objects are provided.
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- **Provider** - base provider class.
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- **Callable** - provider that calls a wrapped callable on every call. Supports
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positional and keyword argument injections.
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- **Factory** - provider that creates new instance of specified class on every
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call. Supports positional and keyword argument injections, as well as
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attribute injections.
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- **Singleton** - provider that creates new instance of specified class on its
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first call and returns the same instance on every next call. Supports
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position and keyword argument injections, as well as attribute injections.
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- **Object** - provider that returns provided instance "as is".
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- **ExternalDependency** - provider that can be useful for development of
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self-sufficient libraries, modules, and applications that require external
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dependencies.
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- **Configuration** - provider that helps with implementing late static binding
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of configuration options - use first, define later.
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Containers
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~~~~~~~~~~
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Containers are collections of providers. The main purpose of containers is to
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group providers.
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- **DeclarativeContainer** - is an inversion of control container that can be
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defined in a declarative manner. It covers most of the cases where a list of
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providers that is be included in a container is deterministic
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(that means the container will not change its structure in runtime).
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- **DynamicContainer** - is an inversion of control container with a dynamic
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structure. It covers most of the cases where a list of providers that
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would be included in container is non-deterministic and depends on the
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application's flow or its configuration (container's structure could be
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determined just after the application starts and might perform some initial
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work, like parsing a list of container providers from a configuration).
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Dependency Injector in action
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-----------------------------
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The brief example below is a simplified version of inversion of control
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containers from a real-life application. The example demonstrates the usage
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of *Dependency Injector* inversion of control container and providers for
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specifying application components and their dependencies on each other in one
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module. Besides other previously mentioned advantages, it shows a great
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opportunity to control and manage application's structure in one place.
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.. code-block:: python
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"""Example of dependency injection in Python."""
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import logging
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import sqlite3
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import boto3
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from dependency_injector import containers, providers
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from example import services, main
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class IocContainer(containers.DeclarativeContainer):
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"""Application IoC container."""
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config = providers.Configuration('config')
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logger = providers.Singleton(logging.Logger, name='example')
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# Gateways
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database_client = providers.Singleton(sqlite3.connect, config.database.dsn)
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s3_client = providers.Singleton(
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boto3.client, 's3',
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aws_access_key_id=config.aws.access_key_id,
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aws_secret_access_key=config.aws.secret_access_key,
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)
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# Services
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users_service = providers.Factory(
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services.UsersService,
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db=database_client,
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logger=logger,
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)
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auth_service = providers.Factory(
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services.AuthService,
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token_ttl=config.auth.token_ttl,
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db=database_client,
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logger=logger,
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)
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photos_service = providers.Factory(
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services.PhotosService,
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db=database_client,
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s3=s3_client,
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logger=logger,
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)
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# Misc
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main = providers.Callable(
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main.main,
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users_service=users_service,
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auth_service=auth_service,
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photos_service=photos_service,
|
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)
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The next example demonstrates a run of the example application defined above:
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.. code-block:: python
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"""Run example of dependency injection in Python."""
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import sys
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import logging
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from container import IocContainer
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|
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|
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if __name__ == '__main__':
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# Configure container:
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container = IocContainer(
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config={
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'database': {
|
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'dsn': ':memory:',
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},
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'aws': {
|
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'access_key_id': 'KEY',
|
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'secret_access_key': 'SECRET',
|
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},
|
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'auth': {
|
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'token_ttl': 3600,
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},
|
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}
|
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)
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container.logger().addHandler(logging.StreamHandler(sys.stdout))
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# Run application:
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container.main(*sys.argv[1:])
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|
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You can find more *Dependency Injector* examples in the ``/examples`` directory
|
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on our GitHub:
|
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|
||||
https://github.com/ets-labs/python-dependency-injector
|
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|
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Feedback & Support
|
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Where is the docs?
|
||||
------------------
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|
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Feel free to post questions, bugs, feature requests, proposals, etc. on
|
||||
the *Dependency Injector* GitHub issues page:
|
||||
- The documentation is available on the `Read The Docs <http://python-dependency-injector.ets-labs.org/>`_
|
||||
|
||||
https://github.com/ets-labs/python-dependency-injector/issues
|
||||
Have a question?
|
||||
----------------
|
||||
|
||||
Your feedback is quite important!
|
||||
- Open a `Github Issue <https://github.com/ets-labs/python-dependency-injector/issues>`_
|
||||
|
||||
Found a bug?
|
||||
------------
|
||||
|
||||
- Open a `Github Issue <https://github.com/ets-labs/python-dependency-injector/issues>`_
|
||||
|
||||
Want to help?
|
||||
-------------
|
||||
|
||||
- ⭐️ Star the ``Dependency Injector`` on the `Github <https://github.com/ets-labs/python-dependency-injector/>`_
|
||||
- 🆕 Start a new project with the ``Dependency Injector``
|
||||
- 💬 Tell your friend about the ``Dependency Injector``
|
||||
|
||||
|
||||
.. _Dependency injection: http://en.wikipedia.org/wiki/Dependency_injection
|
||||
.. _Inversion of control: https://en.wikipedia.org/wiki/Inversion_of_control
|
||||
Want to contribute?
|
||||
-------------------
|
||||
|
||||
- 🔀 Fork the project
|
||||
- ⬅️ Open a pull request to the ``develop`` branch
|
||||
|
||||
.. _PyPi: https://pypi.org/project/dependency-injector/
|
||||
.. _User's guide: http://python-dependency-injector.ets-labs.org/
|
||||
.. _API docs: http://python-dependency-injector.ets-labs.org/api/
|
||||
|
|
|
|||
9
docs/api/flaskext.rst
Normal file
9
docs/api/flaskext.rst
Normal file
|
|
@ -0,0 +1,9 @@
|
|||
``dependency_injector.ext.flask``
|
||||
---------------------------------
|
||||
|
||||
.. automodule:: dependency_injector.ext.flask
|
||||
:members:
|
||||
:special-members:
|
||||
|
||||
|
||||
.. disqus::
|
||||
|
|
@ -8,3 +8,4 @@ API Documentation
|
|||
providers
|
||||
containers
|
||||
errors
|
||||
flaskext
|
||||
|
|
|
|||
|
|
@ -1,6 +1,6 @@
|
|||
======================================================================
|
||||
Dependency Injector --- Dependency injection microframework for Python
|
||||
======================================================================
|
||||
=================================================================
|
||||
Dependency Injector --- Dependency injection framework for Python
|
||||
=================================================================
|
||||
|
||||
.. meta::
|
||||
:google-site-verification: 6it89zX0_wccKEhAqbAiYQooS95f0BA8YfesHk6bsNA
|
||||
|
|
@ -22,24 +22,43 @@ Dependency Injector --- Dependency injection microframework for Python
|
|||
.. image:: https://img.shields.io/pypi/v/dependency_injector.svg
|
||||
:target: https://pypi.org/project/dependency-injector/
|
||||
:alt: Latest Version
|
||||
|
||||
.. image:: https://img.shields.io/pypi/l/dependency_injector.svg
|
||||
:target: https://pypi.org/project/dependency-injector/
|
||||
:alt: License
|
||||
.. image:: https://pepy.tech/badge/dependency-injector
|
||||
:target: https://pepy.tech/project/dependency-injector
|
||||
:alt: Downloads
|
||||
|
||||
.. image:: https://img.shields.io/pypi/pyversions/dependency_injector.svg
|
||||
:target: https://pypi.org/project/dependency-injector/
|
||||
:alt: Supported Python versions
|
||||
|
||||
.. image:: https://img.shields.io/pypi/implementation/dependency_injector.svg
|
||||
:target: https://pypi.org/project/dependency-injector/
|
||||
:alt: Supported Python implementations
|
||||
|
||||
.. image:: https://pepy.tech/badge/dependency-injector
|
||||
:target: https://pepy.tech/project/dependency-injector
|
||||
:alt: Downloads
|
||||
|
||||
.. image:: https://pepy.tech/badge/dependency-injector/month
|
||||
:target: https://pepy.tech/project/dependency-injector
|
||||
:alt: Downloads
|
||||
|
||||
.. image:: https://pepy.tech/badge/dependency-injector/week
|
||||
:target: https://pepy.tech/project/dependency-injector
|
||||
:alt: Downloads
|
||||
|
||||
.. image:: https://img.shields.io/pypi/wheel/dependency-injector.svg
|
||||
:target: https://pypi.org/project/dependency-injector/
|
||||
:alt: Wheel
|
||||
|
||||
.. image:: https://travis-ci.org/ets-labs/python-dependency-injector.svg?branch=master
|
||||
:target: https://travis-ci.org/ets-labs/python-dependency-injector
|
||||
:alt: Build Status
|
||||
|
||||
.. image:: http://readthedocs.org/projects/python-dependency-injector/badge/?version=latest
|
||||
:target: http://python-dependency-injector.ets-labs.org/
|
||||
:alt: Docs Status
|
||||
|
||||
.. image:: https://coveralls.io/repos/github/ets-labs/python-dependency-injector/badge.svg?branch=master
|
||||
:target: https://coveralls.io/github/ets-labs/python-dependency-injector?branch=master
|
||||
:alt: Coverage Status
|
||||
|
|
|
|||
|
|
@ -7,6 +7,13 @@ that were made in every particular version.
|
|||
From version 0.7.6 *Dependency Injector* framework strictly
|
||||
follows `Semantic versioning`_
|
||||
|
||||
Development version
|
||||
-------------------
|
||||
- Add ``Flask`` integration module ``dependency_injector.flask.ext``.
|
||||
- Add ``Flask`` + ``Dependency Injector`` example ``ghnav-flask``.
|
||||
- Add ``Factory.provides`` attribute. It is an alias to the ``Factory.cls``.
|
||||
- New README.
|
||||
|
||||
3.19.2
|
||||
------
|
||||
- Add logo.
|
||||
|
|
|
|||
|
|
@ -1,2 +1,2 @@
|
|||
[pydocstyle]
|
||||
ignore = D101,D203,D213
|
||||
ignore = D101,D103,D107,D203,D213
|
||||
|
|
|
|||
90
examples/miniapps/ghnav-flask/README.rst
Normal file
90
examples/miniapps/ghnav-flask/README.rst
Normal file
|
|
@ -0,0 +1,90 @@
|
|||
Flask Dependency Injection Example
|
||||
==================================
|
||||
|
||||
Application ``githubnavigator`` is a `Flask <https://flask.palletsprojects.com/>`_ +
|
||||
`Dependency Injector <http://python-dependency-injector.ets-labs.org/>`_ application.
|
||||
|
||||
Run
|
||||
---
|
||||
|
||||
Install requirements:
|
||||
|
||||
.. code-block:: bash
|
||||
|
||||
pip install -r requirements.txt
|
||||
|
||||
To run the application do:
|
||||
|
||||
.. code-block:: bash
|
||||
|
||||
export FLASK_APP=githubnavigator.entrypoint
|
||||
export FLASK_ENV=development
|
||||
flask run
|
||||
|
||||
The output should be something like:
|
||||
|
||||
.. code-block::
|
||||
|
||||
* Serving Flask app "githubnavigator.entrypoint" (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 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, asyncio-0.14.0
|
||||
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 10 0 100%
|
||||
githubnavigator/entrypoint.py 5 5 0%
|
||||
githubnavigator/services.py 13 0 100%
|
||||
githubnavigator/tests.py 38 0 100%
|
||||
githubnavigator/views.py 7 0 100%
|
||||
----------------------------------------------------
|
||||
TOTAL 73 5 93%
|
||||
5
examples/miniapps/ghnav-flask/config.yml
Normal file
5
examples/miniapps/ghnav-flask/config.yml
Normal file
|
|
@ -0,0 +1,5 @@
|
|||
github:
|
||||
request_timeout: 10
|
||||
search:
|
||||
default_term: "Dependency Injector"
|
||||
default_limit: 5
|
||||
|
|
@ -0,0 +1 @@
|
|||
"""Top-level package."""
|
||||
39
examples/miniapps/ghnav-flask/githubnavigator/application.py
Normal file
39
examples/miniapps/ghnav-flask/githubnavigator/application.py
Normal file
|
|
@ -0,0 +1,39 @@
|
|||
"""Application module."""
|
||||
|
||||
from dependency_injector import containers, providers
|
||||
from dependency_injector.ext import flask
|
||||
from github import Github
|
||||
|
||||
from . import services, views
|
||||
|
||||
|
||||
class Application(containers.DeclarativeContainer):
|
||||
"""Application container."""
|
||||
|
||||
config = providers.Configuration()
|
||||
|
||||
github_client = providers.Factory(
|
||||
Github,
|
||||
login_or_token=config.github.auth_token,
|
||||
timeout=config.github.request_timeout,
|
||||
)
|
||||
|
||||
search_service = providers.Factory(
|
||||
services.SearchService,
|
||||
github_client=github_client,
|
||||
)
|
||||
|
||||
index_view = providers.Callable(
|
||||
views.index,
|
||||
search_service=search_service,
|
||||
default_search_term=config.search.default_term,
|
||||
default_search_limit=config.search.default_limit,
|
||||
)
|
||||
|
||||
app = providers.Factory(
|
||||
flask.create_app,
|
||||
name=__name__,
|
||||
routes=[
|
||||
flask.Route('/', view_provider=index_view),
|
||||
],
|
||||
)
|
||||
|
|
@ -0,0 +1,9 @@
|
|||
"""Entrypoint module."""
|
||||
|
||||
from .application import Application
|
||||
|
||||
|
||||
application = Application()
|
||||
application.config.from_yaml('config.yml')
|
||||
application.config.github.auth_token.from_env('GITHUB_TOKEN')
|
||||
app = application.app()
|
||||
41
examples/miniapps/ghnav-flask/githubnavigator/services.py
Normal file
41
examples/miniapps/ghnav-flask/githubnavigator/services.py
Normal file
|
|
@ -0,0 +1,41 @@
|
|||
"""Services module."""
|
||||
|
||||
from github import Github
|
||||
from github.Repository import Repository
|
||||
from github.Commit import Commit
|
||||
|
||||
|
||||
class SearchService:
|
||||
"""Search service performs search on Github."""
|
||||
|
||||
def __init__(self, github_client: Github):
|
||||
self._github_client = github_client
|
||||
|
||||
def search_repositories(self, term, limit):
|
||||
"""Search for repositories and return formatted data."""
|
||||
repositories = self._github_client.search_repositories(term, **{'in': 'name'})
|
||||
return [
|
||||
self._format_repo(repository)
|
||||
for repository in repositories[:limit]
|
||||
]
|
||||
|
||||
def _format_repo(self, repository: Repository):
|
||||
return {
|
||||
'url': repository.html_url,
|
||||
'name': repository.name,
|
||||
'owner': {
|
||||
'login': repository.owner.login,
|
||||
'url': repository.owner.html_url,
|
||||
'avatar_url': repository.owner.avatar_url,
|
||||
},
|
||||
'created_at': repository.created_at,
|
||||
'latest_commit': self._format_commit(repository.get_commits()[0]),
|
||||
}
|
||||
|
||||
def _format_commit(self, commit: Commit):
|
||||
return {
|
||||
'sha': commit.sha,
|
||||
'url': commit.html_url,
|
||||
'message': commit.commit.message,
|
||||
'author_name': commit.commit.author.name,
|
||||
}
|
||||
|
|
@ -0,0 +1,40 @@
|
|||
<!DOCTYPE html>
|
||||
<html>
|
||||
<head>
|
||||
<title>Github Navigator</title>
|
||||
</head>
|
||||
<body>
|
||||
<h1>Github Navigator</h1>
|
||||
<form method="get">
|
||||
<p>
|
||||
Search term: <input type="text" name="search_term" value="{{ search_term if search_term }}">
|
||||
Limit: <input type="text" name="limit" value="{{ limit }}">
|
||||
<input type="submit">
|
||||
</p>
|
||||
</form>
|
||||
<h2>Search results</h2>
|
||||
{% if repositories|length == 0 %}
|
||||
<small>No search results</small>
|
||||
{% endif %}
|
||||
{% for repository in repositories %} {{n}}
|
||||
<p>
|
||||
<small>Search result # {{ loop.index }} from {{ repositories|length }}</small>
|
||||
</p>
|
||||
<p>
|
||||
Repository: <a href="{{ repository.url }}">{{ repository.name }}</a>
|
||||
</p>
|
||||
<p>
|
||||
Repository owner:
|
||||
<a href="{{ repository.owner.url }}"><img src="{{ repository.owner.avatar_url }}" alt="avatar" height="24" width="24"/></a>
|
||||
<a href="{{ repository.owner.url }}">{{ repository.owner.login }}</a>
|
||||
</p>
|
||||
<p>
|
||||
Created at: {{ repository.created_at }}
|
||||
</p>
|
||||
<p>
|
||||
LastCommit: <a href="{{ repository.latest_commit.url }}">{{ repository.latest_commit.sha }}</a> {{ repository.latest_commit['message'] }} {{ repository.latest_commit.author_name }}
|
||||
</p>
|
||||
<hr/>
|
||||
{% endfor %}
|
||||
</body>
|
||||
</html>
|
||||
90
examples/miniapps/ghnav-flask/githubnavigator/tests.py
Normal file
90
examples/miniapps/ghnav-flask/githubnavigator/tests.py
Normal file
|
|
@ -0,0 +1,90 @@
|
|||
"""Tests module."""
|
||||
|
||||
from unittest import mock
|
||||
|
||||
import pytest
|
||||
from github import Github
|
||||
from flask import url_for
|
||||
|
||||
from .application import Application
|
||||
|
||||
|
||||
@pytest.fixture
|
||||
def application():
|
||||
application = Application()
|
||||
application.config.from_dict(
|
||||
{
|
||||
'github': {
|
||||
'auth_token': 'test-token',
|
||||
'request_timeout': 10,
|
||||
},
|
||||
'search': {
|
||||
'default_term': 'Dependency Injector',
|
||||
'default_limit': 5,
|
||||
},
|
||||
}
|
||||
)
|
||||
return application
|
||||
|
||||
|
||||
@pytest.fixture()
|
||||
def app(application: Application):
|
||||
return application.app()
|
||||
|
||||
|
||||
def test_index(client, application: Application):
|
||||
github_client_mock = mock.Mock(spec=Github)
|
||||
github_client_mock.search_repositories.return_value = [
|
||||
mock.Mock(
|
||||
html_url='repo1-url',
|
||||
name='repo1-name',
|
||||
owner=mock.Mock(
|
||||
login='owner1-login',
|
||||
html_url='owner1-url',
|
||||
avatar_url='owner1-avatar-url',
|
||||
),
|
||||
created_at='repo1-created-at',
|
||||
get_commits=mock.Mock(return_value=[mock.Mock()]),
|
||||
),
|
||||
mock.Mock(
|
||||
html_url='repo2-url',
|
||||
name='repo2-name',
|
||||
owner=mock.Mock(
|
||||
login='owner2-login',
|
||||
html_url='owner2-url',
|
||||
avatar_url='owner2-avatar-url',
|
||||
),
|
||||
created_at='repo2-created-at',
|
||||
get_commits=mock.Mock(return_value=[mock.Mock()]),
|
||||
),
|
||||
]
|
||||
|
||||
with application.github_client.override(github_client_mock):
|
||||
response = client.get(url_for('index'))
|
||||
|
||||
assert response.status_code == 200
|
||||
|
||||
assert b'repo1-url' in response.data
|
||||
assert b'repo1-name' in response.data
|
||||
assert b'owner1-login' in response.data
|
||||
assert b'owner1-url' in response.data
|
||||
assert b'owner1-avatar-url' in response.data
|
||||
assert b'repo1-created-at' in response.data
|
||||
|
||||
assert b'repo2-url' in response.data
|
||||
assert b'repo2-name' in response.data
|
||||
assert b'owner2-login' in response.data
|
||||
assert b'owner2-url' in response.data
|
||||
assert b'owner2-avatar-url' in response.data
|
||||
assert b'repo2-created-at' in response.data
|
||||
|
||||
|
||||
def test_index_no_results(client, application: Application):
|
||||
github_client_mock = mock.Mock(spec=Github)
|
||||
github_client_mock.search_repositories.return_value = []
|
||||
|
||||
with application.github_client.override(github_client_mock):
|
||||
response = client.get(url_for('index'))
|
||||
|
||||
assert response.status_code == 200
|
||||
assert b'No search results' in response.data
|
||||
19
examples/miniapps/ghnav-flask/githubnavigator/views.py
Normal file
19
examples/miniapps/ghnav-flask/githubnavigator/views.py
Normal file
|
|
@ -0,0 +1,19 @@
|
|||
"""Views module."""
|
||||
|
||||
from flask import request, render_template
|
||||
|
||||
from .services import SearchService
|
||||
|
||||
|
||||
def index(search_service: SearchService, default_search_term, default_search_limit):
|
||||
search_term = request.args.get('search_term', default_search_term)
|
||||
limit = request.args.get('limit', default_search_limit, int)
|
||||
|
||||
repositories = search_service.search_repositories(search_term, limit)
|
||||
|
||||
return render_template(
|
||||
'index.html',
|
||||
search_term=search_term,
|
||||
limit=limit,
|
||||
repositories=repositories,
|
||||
)
|
||||
4
examples/miniapps/ghnav-flask/requirements.txt
Normal file
4
examples/miniapps/ghnav-flask/requirements.txt
Normal file
|
|
@ -0,0 +1,4 @@
|
|||
dependency-injector[flask,yaml]
|
||||
pygithub
|
||||
pytest-flask
|
||||
pytest-cov
|
||||
|
|
@ -6,3 +6,5 @@ flake8
|
|||
pydocstyle
|
||||
sphinx_autobuild
|
||||
pip
|
||||
|
||||
-r requirements-ext.txt
|
||||
|
|
|
|||
|
|
@ -1,3 +1,5 @@
|
|||
sphinx
|
||||
sphinx_rtd_theme>=0.2.5b2
|
||||
-e git://github.com/rmk135/sphinxcontrib-disqus.git#egg=sphinxcontrib-disqus
|
||||
|
||||
-r requirements-ext.txt
|
||||
|
|
|
|||
1
requirements-ext.txt
Normal file
1
requirements-ext.txt
Normal file
|
|
@ -0,0 +1 @@
|
|||
flask
|
||||
5
setup.py
5
setup.py
|
|
@ -41,6 +41,7 @@ setup(name='dependency-injector',
|
|||
download_url='https://pypi.python.org/pypi/dependency_injector',
|
||||
packages=[
|
||||
'dependency_injector',
|
||||
'dependency_injector.ext',
|
||||
],
|
||||
package_dir={
|
||||
'': 'src',
|
||||
|
|
@ -63,6 +64,9 @@ setup(name='dependency-injector',
|
|||
'yaml': [
|
||||
'pyyaml',
|
||||
],
|
||||
'flask': [
|
||||
'flask',
|
||||
],
|
||||
},
|
||||
zip_safe=True,
|
||||
license='BSD New',
|
||||
|
|
@ -75,6 +79,7 @@ setup(name='dependency-injector',
|
|||
'Factory',
|
||||
'Singleton',
|
||||
'Design patterns',
|
||||
'Flask',
|
||||
],
|
||||
classifiers=[
|
||||
'Development Status :: 5 - Production/Stable',
|
||||
|
|
|
|||
1
src/dependency_injector/ext/__init__.py
Normal file
1
src/dependency_injector/ext/__init__.py
Normal file
|
|
@ -0,0 +1 @@
|
|||
"""Extensions package."""
|
||||
83
src/dependency_injector/ext/flask.py
Normal file
83
src/dependency_injector/ext/flask.py
Normal file
|
|
@ -0,0 +1,83 @@
|
|||
"""Flask extension module."""
|
||||
|
||||
from __future__ import absolute_import
|
||||
|
||||
from flask import Flask
|
||||
|
||||
from dependency_injector import providers, errors
|
||||
|
||||
|
||||
def create_app(name, routes, **kwargs):
|
||||
"""Create Flask app and add routes."""
|
||||
app = Flask(name, **kwargs)
|
||||
for route in routes:
|
||||
app.add_url_rule(*route.args, **route.options)
|
||||
return app
|
||||
|
||||
|
||||
def as_view(provider, name=None):
|
||||
"""Transform class-based view provider to view function."""
|
||||
if isinstance(provider, providers.Factory):
|
||||
def view(*args, **kwargs):
|
||||
self = provider()
|
||||
return self.dispatch_request(*args, **kwargs)
|
||||
|
||||
assert name, 'Argument "endpoint" is required for class-based views'
|
||||
view.__name__ = name
|
||||
elif isinstance(provider, providers.Callable):
|
||||
def view(*args, **kwargs):
|
||||
return provider(*args, **kwargs)
|
||||
|
||||
view.__name__ = provider.provides.__name__
|
||||
else:
|
||||
raise errors.Error('Undefined provider type')
|
||||
|
||||
view.__doc__ = provider.provides.__doc__
|
||||
view.__module__ = provider.provides.__module__
|
||||
|
||||
if isinstance(provider.provides, type):
|
||||
view.view_class = provider.provides
|
||||
|
||||
if hasattr(provider.provides, 'decorators'):
|
||||
for decorator in provider.provides.decorators:
|
||||
view = decorator(view)
|
||||
|
||||
if hasattr(provider.provides, 'methods'):
|
||||
view.methods = provider.provides.methods
|
||||
|
||||
if hasattr(provider.provides, 'provide_automatic_options'):
|
||||
view.provide_automatic_options = provider.provides.provide_automatic_options
|
||||
|
||||
return view
|
||||
|
||||
|
||||
class Route:
|
||||
"""Route is a glue for Dependency Injector providers and Flask views."""
|
||||
|
||||
def __init__(
|
||||
self,
|
||||
rule,
|
||||
endpoint=None,
|
||||
view_provider=None,
|
||||
provide_automatic_options=None,
|
||||
**options):
|
||||
"""Initialize route."""
|
||||
self.view_provider = view_provider
|
||||
self.args = (rule, endpoint, as_view(view_provider, endpoint), provide_automatic_options)
|
||||
self.options = options
|
||||
|
||||
def __deepcopy__(self, memo):
|
||||
"""Create and return full copy of provider."""
|
||||
copied = memo.get(id(self))
|
||||
if copied is not None:
|
||||
return copied
|
||||
|
||||
rule, endpoint, _, provide_automatic_options = self.args
|
||||
view_provider = providers.deepcopy(self.view_provider, memo)
|
||||
|
||||
return self.__class__(
|
||||
rule,
|
||||
endpoint,
|
||||
view_provider,
|
||||
provide_automatic_options,
|
||||
**self.options)
|
||||
File diff suppressed because it is too large
Load Diff
|
|
@ -1405,6 +1405,11 @@ cdef class Factory(Provider):
|
|||
|
||||
@property
|
||||
def cls(self):
|
||||
"""Return provided type."""
|
||||
return self.provides
|
||||
|
||||
@property
|
||||
def provides(self):
|
||||
"""Return provided type."""
|
||||
return self.__instantiator.provides
|
||||
|
||||
|
|
|
|||
1
tests/unit/ext/__init__.py
Normal file
1
tests/unit/ext/__init__.py
Normal file
|
|
@ -0,0 +1 @@
|
|||
"""Dependency injector extension unit tests."""
|
||||
75
tests/unit/ext/test_flask_py2_py3.py
Normal file
75
tests/unit/ext/test_flask_py2_py3.py
Normal file
|
|
@ -0,0 +1,75 @@
|
|||
"""Dependency injector Flask extension unit tests."""
|
||||
|
||||
import unittest2 as unittest
|
||||
from flask import url_for
|
||||
from flask.views import MethodView
|
||||
|
||||
from dependency_injector import containers, providers
|
||||
from dependency_injector.ext import flask
|
||||
|
||||
|
||||
def index():
|
||||
return 'Hello World!'
|
||||
|
||||
|
||||
def test():
|
||||
return 'Test!'
|
||||
|
||||
|
||||
class Test(MethodView):
|
||||
def get(self):
|
||||
return 'Test class-based!'
|
||||
|
||||
|
||||
class Application(containers.DeclarativeContainer):
|
||||
|
||||
index_view = providers.Callable(index)
|
||||
test_view = providers.Callable(test)
|
||||
test_class_view = providers.Factory(Test)
|
||||
|
||||
app = providers.Factory(
|
||||
flask.create_app,
|
||||
name=__name__,
|
||||
routes=[
|
||||
flask.Route('/', view_provider=index_view),
|
||||
flask.Route('/test', 'test-test', test_view),
|
||||
flask.Route('/test-class', 'test-class', test_class_view)
|
||||
],
|
||||
)
|
||||
|
||||
|
||||
class ApplicationTests(unittest.TestCase):
|
||||
|
||||
def setUp(self):
|
||||
application = Application()
|
||||
self.app = application.app()
|
||||
self.app.config['SERVER_NAME'] = 'test-server.com'
|
||||
self.client = self.app.test_client()
|
||||
self.client.__enter__()
|
||||
|
||||
def tearDown(self):
|
||||
self.client.__exit__(None, None, None)
|
||||
|
||||
def test_index(self):
|
||||
response = self.client.get('/')
|
||||
|
||||
self.assertEqual(response.status_code, 200)
|
||||
self.assertEqual(response.data, b'Hello World!')
|
||||
|
||||
def test_test(self):
|
||||
response = self.client.get('/test')
|
||||
|
||||
self.assertEqual(response.status_code, 200)
|
||||
self.assertEqual(response.data, b'Test!')
|
||||
|
||||
def test_test_class_based(self):
|
||||
response = self.client.get('/test-class')
|
||||
|
||||
self.assertEqual(response.status_code, 200)
|
||||
self.assertEqual(response.data, b'Test class-based!')
|
||||
|
||||
def test_endpoints(self):
|
||||
with self.app.app_context():
|
||||
self.assertEqual(url_for('index'), 'http://test-server.com/')
|
||||
self.assertEqual(url_for('test-test'), 'http://test-server.com/test')
|
||||
self.assertEqual(url_for('test-class'), 'http://test-server.com/test-class')
|
||||
Loading…
Reference in New Issue
Block a user