ERD - Audio Chat.md

Engineering Requirement Document - Audio Chat

This document explores the design of Audio Chat.

Features

• Basic authentication method (email and password)
• Upload or Change the image profile
• Create a virtual Room chat
• Real-Time audio chat communication
  • open/close Mic
  • Leave Room
• Real-Time text chat

Big Picture - Architect

Storage

Using MongoDB as a primary database for storing user information like name, password hash, and profile URL and also for storing logs; using Redis for storing user sessions and ids of rooms; and finally, using the file system for storing the profile picture.

Mongo Schema Validation

Using Mongo Schema Validation only on user collection as follows:

user

column	type
_id	objectId
name	string
email (index)	string
profileImg	string
password	string

Session Mechanism

Using session id as a primary identifier with an expiration of 2 weeks ⏱️ from last signin; after that time, resignin is required.

Room Id

Room id is formed by generating a random UUID and then using MD5 for hashing and setting room id in Redis with an expiration date of 5 hours.

Framework

This is shaping up to be a tiny MVC framework, interesting.

Client - API

Path	What Should Do
/home	Home page
/signin	signin page
/#	# page
/signout	Revocation of Cookies and Session
/room/:id	Room page

UI

Signin

#

Home Page

Upload - Update Profiel Img

Create a Virtual Room

Virtual Room

Dependencies

• React.js
• chakra-ui
• express
• session id
• connect-redis
• webRTC
• Socket.io
• crypto
• bcrypt
• MongoDB
• Redis