Microservices mimarisi, büyük uygulamaları küçük, bağımsız servislere böler.

Temel Prensipler

1. Single Responsibility

Her servis tek bir işi yapar:

User Service     → Kullanıcı yönetimi
Order Service    → Sipariş yönetimi
Payment Service  → Ödeme işlemleri

2. API Gateway Pattern

Client
  ↓
API Gateway
  ↓
├── Auth Service
├── User Service
└── Order Service

3. Database per Service

Her servisin kendi database’i:

User Service → PostgreSQL
Order Service → MongoDB
Payment Service → Redis

Communication Patterns

Synchronous (REST/gRPC)

// REST API call
const user = await fetch('/api/users/123');
const orders = await fetch('/api/orders?userId=123');

Asynchronous (Message Queue)

// RabbitMQ
channel.sendToQueue('order.created', {
  orderId: '123',
  userId: '456'
});

Challenges

• ⚠️ Distributed transactions
• ⚠️ Data consistency
• ⚠️ Network latency
• ⚠️ Monitoring complexity

Microservices ile scalable sistemler inşa edin!