python-dependency-injector/examples/miniapps/fastapi-sqlalchemy

FastAPI + SQLAlchemy + Dependency Injector Example
==================================================

This is a `FastAPI <https://fastapi.tiangolo.com/>`_ +
`SQLAlchemy <https://www.sqlalchemy.org/>`_ +
`Dependency Injector <https://python-dependency-injector.ets-labs.org/>`_ example application.

Thanks to `@ShvetsovYura <https://github.com/ShvetsovYura>`_ for providing initial example:
`FastAPI_DI_SqlAlchemy <https://github.com/ShvetsovYura/FastAPI_DI_SqlAlchemy>`_.

Run
---

Build the Docker image:

.. code-block:: bash

   docker-compose build

Run the docker-compose environment:

.. code-block:: bash

    docker-compose up

The output should be something like:

.. code-block::

   Starting fastapi-sqlalchemy_webapp_1 ... done
   Attaching to fastapi-sqlalchemy_webapp_1
   webapp_1  | 2021-02-04 22:07:19,804 INFO sqlalchemy.engine.base.Engine SELECT CAST('test plain returns' AS VARCHAR(60)) AS anon_1
   webapp_1  | 2021-02-04 22:07:19,804 INFO sqlalchemy.engine.base.Engine ()
   webapp_1  | 2021-02-04 22:07:19,804 INFO sqlalchemy.engine.base.Engine SELECT CAST('test unicode returns' AS VARCHAR(60)) AS anon_1
   webapp_1  | 2021-02-04 22:07:19,804 INFO sqlalchemy.engine.base.Engine ()
   webapp_1  | 2021-02-04 22:07:19,805 INFO sqlalchemy.engine.base.Engine PRAGMA main.table_info("users")
   webapp_1  | 2021-02-04 22:07:19,805 INFO sqlalchemy.engine.base.Engine ()
   webapp_1  | 2021-02-04 22:07:19,808 INFO sqlalchemy.engine.base.Engine PRAGMA temp.table_info("users")
   webapp_1  | 2021-02-04 22:07:19,808 INFO sqlalchemy.engine.base.Engine ()
   webapp_1  | 2021-02-04 22:07:19,809 INFO sqlalchemy.engine.base.Engine
   webapp_1  | CREATE TABLE users (
   webapp_1  | 	id INTEGER NOT NULL,
   webapp_1  | 	email VARCHAR,
   webapp_1  | 	hashed_password VARCHAR,
   webapp_1  | 	is_active BOOLEAN,
   webapp_1  | 	PRIMARY KEY (id),
   webapp_1  | 	UNIQUE (email),
   webapp_1  | 	CHECK (is_active IN (0, 1))
   webapp_1  | )
   webapp_1  |
   webapp_1  |
   webapp_1  | 2021-02-04 22:07:19,810 INFO sqlalchemy.engine.base.Engine ()
   webapp_1  | 2021-02-04 22:07:19,821 INFO sqlalchemy.engine.base.Engine COMMIT
   webapp_1  | INFO:     Started server process [8]
   webapp_1  | INFO:     Waiting for application startup.
   webapp_1  | INFO:     Application startup complete.
   webapp_1  | INFO:     Uvicorn running on http://0.0.0.0:8000 (Press CTRL+C to quit)

After that visit http://127.0.0.1:8000/docs in your browser.

Test
----

This application comes with the unit tests.

To run the tests do:

.. code-block:: bash

   docker-compose run --rm webapp py.test webapp/tests.py --cov=webapp

The output should be something like:

.. code-block::

   platform linux -- Python 3.10.0, pytest-6.2.5, py-1.10.0, pluggy-1.0.0
   rootdir: /code
   plugins: cov-3.0.0
   collected 7 items

   webapp/tests.py .......                                         [100%]

   ---------- coverage: platform linux, python 3.10.0-final-0 ----------
   Name                     Stmts   Miss  Cover
   --------------------------------------------
   webapp/__init__.py           0      0   100%
   webapp/application.py       12      0   100%
   webapp/containers.py        10      0   100%
   webapp/database.py          24      8    67%
   webapp/endpoints.py         32      0   100%
   webapp/models.py            10      1    90%
   webapp/repositories.py      36     20    44%
   webapp/services.py          16      0   100%
   webapp/tests.py             59      0   100%
   --------------------------------------------
   TOTAL                      199     29    85%