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https://github.com/ricardo-agz/pyrails

PyRails is a lightweight, opinionated, batteries-included Python web framework built on top of FastAPI and MongoEngine
https://github.com/ricardo-agz/pyrails

api fastapi framework json mongodb mongoengine openapi pydantic python python3 rails rest

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PyRails is a lightweight, opinionated, batteries-included Python web framework built on top of FastAPI and MongoEngine

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# PyRails



PyRails is a lightweight, opinionated, batteries-included Python web framework built on top of FastAPI and MongoEngine.   

It is means to provide helpful, lightweight abstractions to enable standard ways of implementing common patters to 

prevent the SaaSification of the developer stack. 



**The goal is to enhance not inhibit.**



## Features



- Built on top of FastAPI and MongoEngine ODM

- CLI tool for project management and code generation

- Built-in database management (MongoDB)

- Support for both local and Docker-based development

- Environment-specific configurations

- Automatic API documentation



## Installation



Install PyRails using pip:



`pip install pyrails`



## Creating a New Project



Create a new PyRails project using the `new` command:



```

pyrails new my_project

cd my_project

```



This will create a new directory `myapp` with the default project structure:



```

myapp/

├── app/

│   ├── controllers/

│   ├── models/

│   └── __init__.py

├── config/

│   ├── development.py

│   ├── production.py  

│   └── __init__.py

├── main.py

├── Dockerfile

└── docker-compose.yml

```



## Starting the Development Server



Start the development server using the `run` command:



```

pyrails run

```



This will start the development server on http://localhost:8000.



You can also run the service using Docker:



```

pyrails run --docker

```



## Scaffolding Resources



PyRails includes a scaffold generator to quickly create models, controllers, and route definitions for a new resource.



To generate a scaffold for a `Post` resource with `title` and `body` fields:



```

pyrails generate scaffold Post title:str body:str

```



This will generate:



- `app/models/post.py` with a `Post` model class

- `app/controllers/posts_controller.py` with CRUD route handlers

- Update `app/controllers/__init__.py` to import the new controller

- Update `app/models/__init__.py` to import the new model 



## Generating Models and Controllers



You can also generate models and controllers individually.



### Generating a Model



To generate a `Comment` model with `post_id`, `author`, and `content` fields:



```

pyrails generate model Comment post_id:str author:str content:str

```



### Generating a Controller



To generate a controller for `Auth` routes:



```

pyrails generate controller Auth

```



You can also pass in the routes to generate as arguments:



```

pyrails generate controller Auth post:login post:register

```



### More field types



#### Defining Relationships and Field Options



When generating models, you can define relationships between models and specify field options.



- **One-to-Many Relationship**: Use the `ref:` prefix followed by the related model name.



```

pyrails generate model Post author:ref:User

```



This will generate a `Post` model with an `author` field referencing the `User` model.



- **Many-to-Many Relationship**: Use `list:` and `ref:` together.



```

pyrails generate model Student courses:list:ref:Course

```



This will generate a `Student` model with a `courses` field that is a list of references to `Course` models.



- **Optional Field**: Append `_` to the field name to mark it as optional.



```

pyrails generate model User email_:str

```



This will generate a `User` model with an optional `email` field.



- **Unique Field**: Append `^` to the field name to specify it as unique.



```

pyrails generate model User username^:str

```



This will generate a `User` model with a unique `username` field.



#### Specialty Field Types



- **Hashed Field**: Use `_hashed:` suffix to store the field as a hashed value.



```

pyrails generate model User name:str password_hashed:str

```



This will generate a `User` model with a `password` field stored as a hashed value.



- **Encrypted Field**: Use `_encrypted:` suffix to store the field as an encrypted value.



```

pyrails generate model User name:str email_encrypted:str secret_note_encrypted:str

```



This will generate a `User` model with `email` and `secret_note` fields stored as encrypted values.



PyRails supports the following field types: `str`, `int`, `float`, `bool`, `datetime`, `date`, `dict`, `list`.



## Database Management



PyRails provides commands to manage your MongoDB database.



### Starting a Local MongoDB Instance



To start a local MongoDB instance for development:



```

pyrails db up

```



### Stopping the Local MongoDB Instance



To stop the local MongoDB instance:



```

pyrails db down

```



### Running MongoDB in a Docker Container



You can also specify the environment and run MongoDB in a Docker container:



```

pyrails db up --env production --docker

```



## Configuration



Environment-specific configuration files are located in the `config` directory:



- `config/development.py`

- `config/production.py`



Here you can set your `DATABASE_URL`, API keys, and other settings that vary between environments.



## Testing



Write tests in the `tests` directory. You can run your test suite using:



```

python -m pytest

```



## Documentation and Help



- **API Documentation**: http://localhost:8000/docs

- **CLI help**: `pyrails --help`



For guides, tutorials, and detailed API references, check out the PyRails documentation site.



## License



PyRails is open-source software licensed under the MIT license.