NestJS · Microservices · Fresh / Intern · Concept
How do Nest microservices differ from HTTP controllers?
Short Interview Answer
They use transporters (TCP/Redis/NATS/Kafka/RabbitMQ/gRPC) with @MessagePattern/@EventPattern handlers.
Detailed Explanation
Hybrid apps can listen to both HTTP and microservice channels. Serialization and idempotency matter more.