Contributing to the FastAPI Template

Thank you for your interest in contributing to fastapi-template! We welcome all contributions, big or small.

If you are not sure where to start, please take a look at the open issues. If you have an idea for a new feature or would like to report a bug, please open a new issue. You can also check the TODO List for ideas.

I also welcome contributions to the documentation. If you find any errors or would like to suggest improvements, please open a new issue or submit a Pull Request.

I you would like to contribute to the code, but find the requirements below a bit daunting, please feel free to open a discussion and I can help you get started, or even pair on a PR.

Currently, development is done primary on Linux, but I will also try to test on Windows and Mac OS X when possible. If you are using a different platform and find any issues, please let me know. I welcome any contributions, on any platform!

If you have any issues developing on a particular platform, please let me know and I will try to help you out. I am also open to suggestions for improving the development process and documentation.

Prerequisites

Since this is a Python project, you will need to have Python installed on your machine. You can download the latest version of Python from the official website or using your Operating system's package manager. This project requires Python 3.9 or higher.

I'd recommend using pyenv to manage your Python installations, the pyenv-installer works for Linux and Mac OS X. For Windows, you can use the pyenv-win port. See here for installation instructions.

• We use uv to manage our dependencies. You should have this installed as well. You can install uv by following the instructions on their website.

uv can be used to actually install Python, even if you do not have it installed locally (either by system, pyenv or similar).

For example, to install Python 3.12 using uv, you can run the following command:

uv python install 3.12

If you already have a Python version installed, uv will use this.

$ pip install -r requirements-dev.txt

Getting Started

Before you start contributing, please make sure you have read and understood our Code of Conduct and License.

To get started, follow these steps:

1. Fork the repository and clone it to your local machine.
2. Install the required dependencies (see next section).
3. Create a new branch for your changes: git checkout -b my-new-feature.
4. Make your changes and commit them: git commit -am 'Add some feature'.
5. Push your changes to your fork: git push origin my-new-feature.
6. Create a new pull request.

Install Dependencies

Run the following command to install the required dependencies:

uv sync

You then need to activate the virtual environment:

source .venv/bin/activate

If you are using Windows, you can activate the virtual environment using the following command instead:

.venv\Scripts\activate

From here you can start working on the project. If you are using an IDE such as VSCode or PyCharm, you can set the use their Python interpreter setting to use the virtual environment that has just been created.

Linting

I am quite strict about linting and code formatting and have set up a number of pre-commit hooks and tasks to ensure that the code meets the required standards.

Code linting and formatting

We are using Ruff for linting and formatting. These are set up as pre-commit hooks and can be run as below. You can also use the poe ruff and poe format commands to run these manually.

Type hinting

All code must pass mypy checks. This can be run manually using the poe mypy and is part of the pre-commit hooks.

Install Git Pre-Commit hooks

Please install this if you are intending to submit a PR. It will check commits locally before they are pushed up to the Repo. The GitHub CI runs the linting and mypy checks, and will fail if there are any errors.

$ pre-commit install
pre-commit installed at .git/hooks/pre-commit

This will ensure that all code meets the required linting standard before being committed.

Run pre-commit manually

You can run these checks manually on all staged files using the below command :

poe pre

Testing

We are using pytest for testing.

If you add any new features, please add tests for them. This will help us to ensure that the code is working as expected and will prevent any regressions.

GitHub Actions will run the tests on every commit and PR, failing tests will block the PR from being merged, as will any major drop in test coverage.

There is a task set up to run tests:

$ poe test

You can also run the tests manually using the following command:

$ pytest

The task is set up so we can automatically add other options in the future. Notice that both these commands will run the tests with the --cov option and show the coverage report at the end.

Changelog

The changelog is automatically generated, using this project, so please do not edit it manually.

For maintainers, there is a POE task that will run this and update the changelog file.

$ poe changelog

You would also need to add a GitHub Personal Access Token to a local config file as usual. See the section in the Documentation for information.

However, you should NOT include a change to the CHANGELOG.md file in any Pull Requests. This will be handled by the maintainers when a new release is made. Your GitHub username will be added to the changelog automatically beside your PR.

Convenience Tasks

There are a few other convenience tasks that can be run using the poe command. These are defined in the pyproject.toml file.

Each of these tasks can have extra options added which will be passed to the underlying tool.

Run mypy on the code base in strict mode:

$ poe mypy

Format the code using ruff format:

$ poe format

Lint the code using ruff:

$ poe ruff

Check the Markdown:

$ poe markdown

Run ruff, mypy, format and markdown at the same time:

$ poe lint

Documentation Tasks

These are to help with developing and updating the documentation.

• poe docs:serve - Serve the MkDocs locally for testing and development
• poe docs:serve:all - Same as above, but opens to all interfaces so you can view it on other devices on your network
• poe docs:build - Build the MkDocs site into the dist folder
• poe docs:publish - Publish the docs to your GitHub pages. Note that only those with write-access to this repo can do this.

Guidelines

Here are some guidelines to follow when contributing to fastapi-template:

• Do not update the version number in the pyproject.toml file. This will be done by the maintainers when a new release is made.
• Follow the PEP 8 style guide. The pre-commit hooks will check for this. We are using the Ruff Formatter.
• Fix any linting errors or warnings. The pre-commit hooks will check for this also. Ruff is installed and set to pretty strict settings. Ruff now replaces all the original linters that were installed. There is also a Markdown linter.
• MyPy is installed and we are using type hints. Please try to add type hints to your code. If you see any areas of the code that are missing type hints, please feel free to open a PR and add them 😁!
• Write clear and concise commit messages.
• Write tests for your code.
• Make sure your code passes all existing and new tests before submitting a pull request.
• Document your code using docstrings. This project uses the Google Docstring Spec though at this time is a bit slack on listing the Args and Returns. I will be adding these in as I go along so feel free to add them in if you are contributing .
• If you add or change any functionality, please update the documentation accordingly.
• Use GitHub issues to report bugs or suggest new features.

If you are using VSCode, there is a config file in the .vscode folder that will help you to follow these guidelines. You may need to install some extensions to get the most out of it. I'll add a list of recommended extensions here soon. The Python and Ruff ones are very helpful (the included .vscode folder helps configure these).

Contact

If you have any questions or need help with contributing, please contact me @seapagan on GitHub. You can also use the GitHub Discussions feature.

Happy contributing!