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Spring Boot 3.3 Ecosystem

This module is now fully available. Use this page as your roadmap: what you will learn, how the study plan is structured, and where to find guided day-by-day deep dives.

Learning outcomes

  • Build layered REST APIs with validation, exception handling, and OpenAPI docs.
  • Implement persistence with JPA, transactions, migrations, and query optimization.
  • Secure APIs using OAuth2/JWT and method-level authorization.
  • Operate services with tests, metrics, logs, tracing, and health probes.

Study plan

Week 1Boot fundamentals, starters, REST controllers, DTO mapping, validation.
Week 2Data layer with JPA, PostgreSQL, schema migrations, integration tests.
Week 3Security with JWT/OAuth2, role-based access, audit trails.
Week 4Resilience, observability, release strategies, production hardening.
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