# Contributing to Schemathesis

Welcome! Thank you for considering contributing to Schemathesis. Your feedback and contributions are invaluable to us!

## Prerequisites for Code Contributions

**For code contributions**: Make sure you have the following installed:

- Python 3.10 or higher
- `prek`
- `tox`
- `curl` (required by some integration tests; install via your OS package manager, e.g., `apt install curl` or `brew install curl`)

```bash
uv pip install prek tox
```

**Optional but recommended**: Install [`just`](https://github.com/casey/just) for convenient development commands:

```bash
# macOS
brew install just

# Linux
cargo install just
# or use your package manager
```

See `just --list` for all available commands like `just test`, `just check`, `just docs`, etc.

**For documentation contributions**: No specific prerequisites are required.

## Feature Requests and Feedback

If you'd like to suggest a feature or provide feedback, feel free to [submit an issue](https://github.com/schemathesis/schemathesis/issues). When submitting your issue, it helps to provide:

- **Title**: Write a simple and descriptive title to identify your suggestion.
- **Details**: Provide as many details as possible. Explain your context and how you envision the feature working.
- **Usefulness**: Explain why this feature or improvement would be beneficial.
- **Scope**: Keep the scope of the feature narrow to make it easier to implement. For example, focus on a specific use-case rather than a broad feature set.

## Reporting Bugs

If you encounter a bug, please report it in the [issue tracker](https://github.com/schemathesis/schemathesis/issues). When filing a bug report, please include:

- **Title**: Write a simple and descriptive title to identify the problem.
- **Reproduction Steps**: Describe the exact steps to reproduce the problem in as much detail as possible.
- **Observed Behavior**: Describe the behavior you observed and what makes it a problem.
- **Expected Behavior**: Explain which behavior you expected to see instead and why.
- **Versions**: Include Python and Schemathesis versions. Also, confirm if the issue persists in the latest version of Schemathesis.
- **Additional Context**: Logs, error messages, or screenshots are often very helpful.

**What happens next?**: After you submit an issue, we aim to review and respond as soon as possible.
If you don't receive a response within a few days, feel free to add a new comment to the thread to bring it to our attention again.

## Submitting Pull Requests

We welcome contributions to the codebase! If you'd like to submit a pull request (PR), please follow these steps:

1. **Fork the Repository**: Fork the Schemathesis repository on GitHub.
2. **Install Development Tools**: Install the development dependencies using the following command:

```bash
uv pip install -e ".[dev]"
```

This will install all the necessary packages for development, including those for documentation and tests.

3. **Set Up Pre-commit Hooks**: Enable [prek](https://github.com/j178/prek).

```bash
prek install
```

4. **Branching**: Create a new branch and switch to it. Target your pull request to the `master` branch of the main repository.
5. **Coding Standards**: Follow [PEP-8](https://pep8.org/) for naming conventions and use [ruff](https://github.com/astral-sh/ruff) for code formatting.
6. **Write Tests**: Preferably, write integration tests that run the whole Schemathesis CLI.
7. **Run Tests**:

```bash
# Using tox
tox -e py311

# Or using just
just test
```

8. **Update Changelog**: Add a corresponding entry to `CHANGELOG.md` located in the repository root.
9. **Commit Your Changes**: Use the [Conventional Commits](https://www.conventionalcommits.org/en/) format. For example, features could be `feat: add new validation feature` and bug fixes could be `fix: resolve issue with validation`.

**What happens next?**: After submitting, your pull request will be reviewed.
If you don't hear back within a few days, feel free to add a comment to the pull request to draw our attention.

## Contributing to Documentation

We recommend installing Schemathesis with the "dev" extra for all the dependencies needed for documentation:

```bash
uv pip install -e ".[dev]"
```

To preview your changes:

```bash
mkdocs serve
```

Then open the URL shown in the terminal (typically `http://127.0.0.1:8000/`) in your browser.

## Community and Support

For more informal discussions or questions, join us on [Discord](https://discord.gg/R9ASRAmHnA).

## Maintainers

At present, the core developers are:

- Dmitry Dygalo ([@Stranger6667](https://github.com/Stranger6667))

## Preferred communication language

We prefer to keep all communications in English.

Thanks!