Design a messaging app like WhatsApp

Learn about 1:1 and group messaging implementation and design

A WebSocket Server is a lightweight server with about 65k open ports per machine. If 5k ports are used for internal communication, then there are still 60k ports available for connecting with users. This means that a single machine can hold one-on-one connections with up to 60k, and the number of web socket servers needed will depend on the expected num…