Monitoring and Logging

Logging

Logging is configured in service application*.yml files rather than a centralized observability stack.

Examples in the repository:

• org.springframework.cloud.gateway: INFO
• com.bookstore.analytics: INFO
• com.bookstore.notification: INFO / DEBUG depending on profile
• org.springframework.web: DEBUG in payment-service dev config

Health endpoints

The following services explicitly permit health/info routes:

• book-service
• payment-service (/actuator/health)
• analytics-service

Current observability posture

Present:

• service logs
• actuator health endpoints in some services
• domain events captured in Kafka

Missing in repository:

• distributed tracing
• metrics backend
• dashboards
• log aggregation
• alerting rules

TODOs

• Add consistent actuator exposure across all services
• Export Micrometer metrics
• Add centralized log collection
• Add traces across gateway, payment, and order flows