WhatsApp Server

Tech Stack

• Green API
• MySQL
• Redis
• MyBatis
• Docker
• Swagger
• Spring Boot
• Spring MVC
• Spring Security
• WebSocket
• Zookeeper
• Kafka

Rate Limit

Assume each packet contains 150 bytes(150 characters), TTL = 40ms

The throughput of 3 partition kafka cluster will be 3 * 1000 *150 / 20 = 22500 bytes per second = 150 users

Services