Frontend System Desigm: Chat Application

Designing a frontend chat system involves defining component structures, managing state, achieving real-time updates, ensuring user authentication, and considering UI/UX elements. The architecture includes REST and WebSockets for real-time communication, with JWT for authentication and Signal Protocol for encryption. Key aspects include idempotency, client-side storage, managing network unreliability, and implementing performance optimizations. Production readiness requires feature flags, thorough testing, error tracking, performance monitoring, and user behavior analytics.