System Design | #SystemDesign :
whatsapp system design or facebook messenger system design is a common system design interview question asked when interviewer wants to check knowledge on designing of application related to Chat Messaging service . It checks the skill like the knowledge of protocols like websocket and limitation of http.
System needs to scale and handle various scenarios like group chat, media like image, audio and video sharing.
Handle persistence of chat and understand how push notification comes into this picture.

push notification: https://developers.google.com/web/fun...

So in gist the requirements are:
One to one message
Sent/Delivered/Seen
Last Online
Media message
Persistent chat(required or not?)



you can buy us a coffee at : https://www.buymeacoffee.com/thetechg...

system design (HLD & LLD):    • System Design | Distributed Cache | L...  

DS for beginners:    • Arrays Data Structures | Data Structu...  

leetcode solutions:    • Leetcode 84 | Largest Rectangle in Hi...  

github: https://github.com/TheTechGranth/theg...
facebook group :   / 741317603336313  
twitter:   / granthtech