Task: Python Chat

Task.md

Spec

You should create web chat server and console or web client.

Server

Server should provice 2 intarfaces for the data:

• Flask API - to make API requests (get data, create chat and etc)
• SocketIO - socket to recieve/send realtime messages at the chat

Functions:

• get list of all chats
• create chat
• join chat
• leave chat
• get messages of specific chat (using cursor pagination - max 20 on the page)
• write a message
• block user
• unblock user
• get list of blocked users
• group admin can ban and kick user from the cannel (he can't more write and join to the cannel)

Models

Models can be modified if need

user

username: Unique

chat_room

name: Unique admin: User

• has many chat users
• has many messages

message

• chat_room_name
• text
• created_at

you may block another one user - then you shouldn't show blocked user's messages at any chats for your user, but still show them for the others

Tech Spec

docker image: Linix Alpine

docker-compose to start server and database

DB: PostgreSQL 9+

Runtime: Python 3.5

Makefile to run and test

Py Libraries

Flask

SQLAlchemy

alembic

dotenv

SocketIO

pylint - code style check