87 lines
2.7 KiB
ReStructuredText
87 lines
2.7 KiB
ReStructuredText
.. _application-multiple-containers:
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Application example (multiple containers)
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=========================================
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.. meta::
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:keywords: Python,Dependency Injection,Inversion of Control,Container,Example,Application,
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Framework,AWS,boto3,client
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:description: This example shows how you can create an application using multiple declarative
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containers. We build an example Python micro application following the dependency
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injection principle. It consists from several services with a domain logic that
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have dependencies on database & AWS S3.
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This example shows how you can create an application using multiple declarative containers. Using
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multiple declarative containers is a good choice for a large application. For
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building a moderate or a small size application refer to :ref:`application-single-container`.
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We build an example micro application following the dependency injection principle. It consists
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of several services with a domain logic. The services have dependencies on database & AWS S3.
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.. image:: images/application.png
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:width: 100%
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:align: center
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Start from the scratch or jump to the section:
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.. contents::
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:local:
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:backlinks: none
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You can find the source code and instructions for running on the `Github <https://github.com/ets-labs/python-dependency-injector/tree/master/examples/miniapps/application-multiple-containers>`_.
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Application structure
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---------------------
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Application consists of an ``example`` package, a configuration file and a ``requirements.txt``
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file.
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.. code-block:: bash
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./
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├── example/
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│ ├── __init__.py
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│ ├── __main__.py
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│ ├── containers.py
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│ └── services.py
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├── config.yml
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└── requirements.txt
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Containers
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----------
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Listing of the ``example/containers.py``:
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.. literalinclude:: ../../examples/miniapps/application-multiple-containers/example/containers.py
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:language: python
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Main module
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-----------
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Listing of the ``example/__main__.py``:
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.. literalinclude:: ../../examples/miniapps/application-multiple-containers/example/__main__.py
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:language: python
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Services
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--------
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Listing of the ``example/services.py``:
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.. literalinclude:: ../../examples/miniapps/application-multiple-containers/example/services.py
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:language: python
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Configuration
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-------------
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Listing of the ``config.yml``:
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.. literalinclude:: ../../examples/miniapps/application-multiple-containers/config.yml
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:language: yaml
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Run the application
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-------------------
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You can find the source code and instructions for running on the `Github <https://github.com/ets-labs/python-dependency-injector/tree/master/examples/miniapps/application-multiple-containers>`_.
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.. disqus:: |