Gaurav Sen: Whatsapp System Design: Chat Messaging Systems for Interviews

March 3, 2021

Here is the link. 

The Whatsapp system architecture is a common system design interview question. This interview question asks us to select a set of features like sending chat messages, read receipts, group messaging and last seen visibility.

Chapters 0:00​ Requirement Setting 2:35​ Image storage 3:07​ System Design 15:00​ Load balancer 21:00​ Consistent Hashing 21:55​ Message Queues 23:05​ Messaging idempotency and ordering