Real-World Architectures
Design a Chat / Messaging System
Designing a chat system involves balancing real-time message delivery with reliability, scalability, and features like presence and history. Common architectures involve a combination of load balancers, message queues, and persistent storage to handle high throughput and ensure message durability.
WebSocketsSSE (Server-Sent Events)Message Queues (Kafka, RabbitMQ)Publish-Subscribe patternMessage PersistencePresence InformationShardingReplicationXMPPErlang
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Design a Chat / Messaging System - System Design Diagram
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