rchat-app

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A chat app, implemented using Flask-SocketIO with both the database (PostgreSQL) and the app deployed in Heroku. It also has user registration and authentication functionalities.

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# Chat App Using Flask-SocketIO & Deployed in Heroku

## Introduction
This is a chat application, implemented using Flask-SocketIO with both the database (PostgreSQL) and the app deployed in Heroku. It also has user registration and authentication functionalities.

## Demo
<img src="https://github.com/sandeepsudhakaran/rchat-app/blob/master/static/images/demo-on-github.gif" alt="RChat - Chat rooms are back in style!" width="40%" height="40%">

## Files in the program
- **application.py**: This is the main app file and contains both the registration/login page logic and the Flask-SocketIO backend for the app.
- **models.py**: Contains Flask-SQLAlchemy models used for user registration and login in application.py
- **wtform_fields.py**: Contains the classes for WTForms/Flask-WTF and the custom validators for the fields
- **create.py**: optional file only required if repo is to be cloned. *See 'Usage' section below.*
- **Procfile**: file required for Heroku
- **requirements.txt**: list of Python packages installed (also required for Heroku)
- **templates/**: folder with all HTML files
- **static/**: for with all JS scripts and CSS files

## Code along series
Watch the 13-part video series where I build this app from scratch
<a href="https://www.youtube.com/playlist?list=PLlLKnYbrXi_rFrzsPa0NxZayHrT52a777"><img src="https://github.com/sandeepsudhakaran/rchat-app/blob/master/static/images/rchat-playlist.png" alt="Watch Code Along Series"></a>

## Usage
### Run app
Use [the link to the production server](https://rchat-app.herokuapp.com) directly.

### Clone/Modify app
1. Modify application.py to replace the secret key *(i.e. os.environ.get('SECRET'))* with a secret key of your choice and the database link *(i.e. os.environ.get('DATABASE_URL'))* with the link to your own database.

The two lines to be edited in application.py are shown below:
```python
app.secret_key=os.environ.get('SECRET')
app.config['SQLALCHEMY_DATABASE_URI']=os.environ.get('DATABASE_URL')
```
2. Edit *create.py* to once again replace *os.environ.get('DATABASE_URL')* with the link to your database.

3. Run *create.py* from the terminal to create the table to hold user credentials.
    
```console
foo@bar:~$ python create.py
```

## Roadmap
Add security features relating to Input Validation, Cross Domain, Secure Transmission and Logging.

*See [OWASP Cheat Sheet Series](https://www.owasp.org/index.php/OWASP_Cheat_Sheet_Series#tab=Main)*.

## License
[CC-BY](https://creativecommons.org/licenses/by/3.0/)

rchat-app

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