### Installing Development Dependencies with Poetry

Source: https://github.com/sartography/spiffworkflow-backend/blob/main/CONTRIBUTING.rst

This command uses Poetry to install all project dependencies, including those required for development, setting up the environment for local work.

```Shell
$ poetry install
```

--------------------------------

### Installing Pre-Commit Hooks with Nox

Source: https://github.com/sartography/spiffworkflow-backend/blob/main/CONTRIBUTING.rst

This command uses Nox to install pre-commit hooks, which automatically run linting and code formatting checks before a Git commit, ensuring code quality standards are met.

```Shell
$ nox --session=pre-commit -- install
```

--------------------------------

### Installing Dependencies with Poetry (Shell)

Source: https://github.com/sartography/spiffworkflow-backend/blob/main/README.rst

This command uses Poetry to install all project dependencies. Poetry manages Python packages and virtual environments, ensuring all required libraries are available for the Spiffworkflow Backend.

```console
$ poetry install
```

--------------------------------

### Running Python Session and CLI with Poetry

Source: https://github.com/sartography/spiffworkflow-backend/blob/main/CONTRIBUTING.rst

These commands demonstrate how to execute an interactive Python session or the project's command-line interface using Poetry's `run` command, ensuring the correct virtual environment is used.

```Shell
$ poetry run python
$ poetry run spiffworkflow-backend
```

--------------------------------

### Running Full Test Suite with Nox

Source: https://github.com/sartography/spiffworkflow-backend/blob/main/CONTRIBUTING.rst

This command executes the entire test suite for the project using Nox, a flexible automation tool, to ensure all tests pass.

```Shell
$ nox
```

--------------------------------

### Specifying Python Project Dependencies

Source: https://github.com/sartography/spiffworkflow-backend/blob/main/docs/requirements.txt

This snippet defines the exact versions of Python packages necessary for the project. These dependencies are typically managed using a `requirements.txt` file and installed via `pip install -r requirements.txt` to maintain environmental consistency across different setups.

```Python
furo==2022.9.29
sphinx==5.3.0
sphinx-click==4.3.0
```

--------------------------------

### Running the Local Server (Shell)

Source: https://github.com/sartography/spiffworkflow-backend/blob/main/README.rst

This command starts the Spiffworkflow Backend server locally. It executes a script designed to launch the application for development or testing purposes on the local machine.

```console
$ ./bin/run_server_locally
```

--------------------------------

### Listing Available Nox Sessions

Source: https://github.com/sartography/spiffworkflow-backend/blob/main/CONTRIBUTING.rst

This command displays a list of all defined Nox sessions within the project, allowing contributors to see available testing or development tasks.

```Shell
$ nox --list-sessions
```

--------------------------------

### Running Specific Nox Session for Unit Tests

Source: https://github.com/sartography/spiffworkflow-backend/blob/main/CONTRIBUTING.rst

This command specifically invokes the 'tests' Nox session, typically used to run the unit test suite, providing a way to execute a subset of the full test suite.

```Shell
$ nox --session=tests
```

--------------------------------

### Setting Up MySQL Database (Shell)

Source: https://github.com/sartography/spiffworkflow-backend/blob/main/README.rst

This command executes a script to set up the project's database. It assumes a MySQL server is already running and performs a clean recreation of the database, preparing it for application use.

```console
$ ./bin/recreate_db clean
```

--------------------------------

### Generating Static File URL in Jinja2

Source: https://github.com/sartography/spiffworkflow-backend/blob/main/src/spiffworkflow_backend/routes/openid_blueprint/templates/login.html

This Jinja2 expression uses the `url_for` function to dynamically generate a URL for a static file, specifically an image named 'logo_small.png' located in the 'openid.static' blueprint. This is common in Flask applications to ensure correct asset paths.

```Jinja2
{{ url_for('openid.static', filename='logo_small.png') }}
```

--------------------------------

### Displaying Error Message in Jinja2 Template

Source: https://github.com/sartography/spiffworkflow-backend/blob/main/src/spiffworkflow_backend/routes/openid_blueprint/templates/login.html

This Jinja2 expression is used to display the value of the `error_message` variable. It's typically populated by the backend to provide feedback to the user, such as login failures, directly within the HTML template.

```Jinja2
{{error_message}}
```

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