intermediate · cohort
Spring Boot APIs for Production
Controllers, validation, OpenAPI, and deployment hygiene for services your team can operate overnight.
8 weeks · 10h/week
JPY 148,000
Informational rate—final fees appear on your enrollment agreement.
Request information Money-back policyProgram narrative
Build three API slices end to end with Spring Boot 3.x. Emphasis on contract-first design, layered testing, and configuration profiles that mirror staging and production. You will practice rollback-ready releases using feature flags discussed in mentor sessions.
What ships in the box
- OpenAPI generation with springdoc plus consumer-driven checks
- Integration tests with Testcontainers for Postgres
- Problem Details (RFC 7807) error modeling workshop
- Metrics hooks with Micrometer and dashboard sketches
- GitHub Actions pipeline template with SBOM step
- Security headers lab with Spring Security lambda DSL
- Release checklist co-authored with our QA reviewer
Outcomes you can describe
- Ship a documented API with consumer-readable examples
- Defend timeout and retry choices using metrics you collected
- Hand off a runbook another engineer can follow without you
Lead mentor
Jonas Weber
Backend mentor; built payment adapters across EU and JP regions.
Cohort questions
Boot 3.2+ on Java 21. If your employer is pinned older, we discuss migration trade-offs in office hours.
Labs default to containerized Postgres; cloud-specific modules are optional reading, not graded.
We do not cover front-end frameworks or Kubernetes operator authoring—only references to where those teams plug in.
Experience notes
The RFC 7807 lab stopped our team from returning opaque 500s—clients now get actionable payloads.
Testcontainers portion was the standout; I finally stopped mocking everything.