Building Scalable Microservices with NestJS

Building Scalable Microservices with NestJS

In this comprehensive guide, we explore how to architect and build scalable microservices...

Architecture Overview

We use an API Gateway pattern with event-driven communication via RabbitMQ...

Key Patterns

1. Transactional Outbox - Ensures reliable event publishing
2. Circuit Breaker - Handles external service failures gracefully
3. CQRS - Separates read and write concerns

Implementation

@Module({
  imports: [DatabaseModule, QueueModule],
})
export class AppModule {}

Full implementation details follow...