juniorWebSockets
What is the difference between WebSocket and REST API?
Updated May 6, 2026
Short answer
REST is request-response over HTTP, while WebSocket is persistent bidirectional communication.
Deep explanation
REST APIs are stateless and ideal for CRUD operations, whereas WebSockets maintain a continuous connection for real-time updates.
Real-world example
REST for user profiles, WebSockets for live notifications.
Common mistakes
- Using WebSockets for simple one-time requests.
Follow-up questions
- Can both be used together?