InstaChat

Backend Task

Live on Heroku: InstaChat

Setup:

• Clone the repo

git clone https://github.com/danieldavidraj/InstaChat.git

• You will need Python and Django to run this application
• Install all dependencies with this command

pip install -r requirements.txt

• Setup a MySQL Database with the configuration below

'NAME': 'InstaChat',
'USER': 'root', 
'PASSWORD': '',
'HOST': 'localhost',
'PORT': '3306'

• Run the commands in terminal from the directory where manage.py is located

python manage.py makemigrations
python manage.py migrate

• You can view the application in browser by typing in

http://localhost:8000/

Tools:

• Python
• Django
• Django REST framework
• Websockets
• Redis as backing store for channels layer
• JSON Web Tokens
• MySQL Database

Features:

User authentication and session management

• User logs in to the application using username and password (Authentication will happen over HTTP using REST API) using Django REST framework.
• User doesn't need to login again unless he logs out.
• If user is logged in, no one can login using that account from another client.
• After logging in, user will land in a room called "lobby" where any one can chat.

One to One chat - the message sent would include only text

• Selects a username to send messages to, a connection is established between server and client for message transmission using websockets.
• If the receiver is offline then the messages will be encrypted and stored in the MySQL database and be delivered once the user is back online.

A web based interface to send, receive and view messages

• Interface developed using HTML, CSS, JavaScript, jQuery.

End-to-End encryption for chats

• If the receiver is online then the messages will be End-to-End encrypted using CryptoJS AES.

Deployed the application

• Deployed the application on Heroku - http://insta-chat-app.herokuapp.com/