Spring Boot Roadmap
Production REST APIs, data access, and cloud-native apps
Your Journey at a Glance
💡 How to use this roadmap
Work through each phase in order. Click on a skill to expand it — you'll find a description and curated resources. Don't rush; understanding beats speed. Complete one phase before moving to the next.
Spring Foundations
Understand why Spring Boot exists, how it builds on the Spring Framework, and master the three concepts everything else depends on: IoC, Dependency Injection, and Auto-configuration.
Web & REST APIs
Build production-quality HTTP APIs. Learn Spring MVC internals, RESTful design, request validation, global exception handling, and API documentation.
Data Access
Everything from raw SQL to full JPA entity modelling. Transactions, caching, and connection pooling — the layer where most production bugs live.
Advanced Spring
Security, testing, observability, messaging, and cross-cutting concerns. This phase is what separates engineers who can scaffold apps from engineers who can run them.
Spring Security
Add authentication and authorisation to your Spring Boot application. Understand the filter chain, implement JWT and OAuth2/OIDC, and harden every endpoint.
Production & Cloud-Native
Package, ship, and operate Spring Boot in production. Container images, graceful shutdown, GraalVM native, virtual threads, and a full observability stack — Prometheus, Grafana, ELK, and distributed tracing.
Spring Cloud
Distribute your Spring Boot services across a cluster. Service discovery, intelligent routing, circuit breaking, centralised config, and end-to-end distributed tracing — the building blocks of resilient microservice systems.
Roadmap Complete!
You now have the foundations of a production-ready Java engineer. Apply by building real projects.
E-Commerce Order Service
A production-grade microservice that handles product catalogue, cart, orders, and payment integration. Covers every Spring Boot phase — REST, JPA, Security, Resilience4j, Kafka events, Redis cache, and a full observability stack.
What you'll build
- REST API: products, cart, orders, payments with full OpenAPI docs
- Spring Data JPA: Product, Order, OrderItem, Inventory entities with optimistic locking
- Spring Security: JWT authentication + role-based access (CUSTOMER / ADMIN)
- Kafka: publishes OrderPlacedEvent, OrderShippedEvent consumed by notification service
- Redis caching: product catalogue cached with @Cacheable, evicted on stock update
- Resilience4j: circuit breaker + retry on payment gateway calls with fallback
- Spring Cloud Gateway: routes API calls, applies rate limiting and auth filter
- Actuator + Prometheus + Grafana: JVM, DB pool, HTTP latency, and Kafka lag dashboards
- Structured JSON logs shipped to ELK stack via Logstash
- Docker Compose setup: app + Postgres + Redis + Kafka + Zookeeper + Grafana
Tech stack
Key highlights
- ✦End-to-end JWT auth flow from registration to secured order placement
- ✦Demonstrates saga pattern: order → payment → inventory reservation via Kafka
- ✦Grafana dashboard shows real-time p99 latency and circuit breaker state
Key Resources for Spring Boot
Handpicked books, websites, and YouTube channels to go alongside this roadmap.
- Spring Boot in ActionCraig Walls — approachable, practical Spring Boot from the Manning series
- Spring Security in Action, 2nd Ed.Laurentiu Spilca — the definitive guide to securing Spring apps
- Cloud Native Spring in ActionThomas Vitale — containers, Kubernetes, and cloud patterns with Spring
- Spring Microservices in Action, 2nd Ed.Carnell & Sánchez — microservices patterns applied with Spring Boot
- Spring Boot ReferenceThe canonical, always up-to-date official documentation
- Spring GuidesShort, task-focused getting-started guides from the Spring team
- Spring BlogRelease notes, feature deep-dives, and best-practice posts from the Spring team
- Spring Framework ReferenceDeep reference for the core framework underlying Spring Boot