Lesson 2: Data, Security, Testing, Logging, and Resilience

Lesson 2: Data, Security, Testing, Logging, and Resilience

This lesson covers the main concepts and practical tasks for data, security, testing, logging, and resilience.

Topics Covered

• Service-owned data, persistence patterns, transactions, consistency, and integration events
• Authentication, authorization, tokens, secrets, and service-to-service security concepts
• Unit, integration, contract, and API testing
• Logging, metrics, tracing concepts, retries, timeouts, circuit breaking, and fault handling
• Testing and hardening Java services

Lesson Outcome

Learners complete the lesson with a practical understanding of the covered workflow and common troubleshooting steps.