What's the difference between engine.io and socket.io?

Question

Please correct me if this question is a duplicate. Regarding node.js, I\'m using socket.io for real-time socket connection from the client application to the server applicat

Answer 1

socket.io is built on top of engine.io.

socket.io is engine.io with bells and whistles.

if you don't need everything socket.io has (redis store, groups, etc.) just use engine.