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Syllabus

Spring Boot 3 from first principles through web, data, security, testing, and production — then a master interview drill.

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Foundations

What Spring and Spring Boot are, how beans work, auto-configuration, and configuration.

  1. 1Spring & Spring Boot
  2. 2IoC, DI & Beans
  3. 3Auto-Config & Starters
  4. 4Config & Profiles

Web & data

REST APIs, validation, errors, JPA, and transactions — the daily backend stack.

  1. 5Web MVC & REST
  2. 6JPA & Transactions

Security & testing

Spring Security filter chain and JWT, plus how to test Boot apps properly.

  1. 7Security & JWT
  2. 8Testing

Ops & integration

Actuator and observability, async/events, and outbound HTTP clients.

  1. 9Actuator & Metrics
  2. 10Async & Scheduling
  3. 11HTTP Clients

Platform & production

Boot 3 platform features, deployment readiness, and proxy pitfalls.

  1. 12Boot 3 & VT
  2. 13Production Readiness
  3. 14Proxies & Pitfalls

Interview

Consolidated Spring Boot / Spring Framework Q&A — drill this out loud.

  1. 15Master Interview Q&A