Spring Boot Developer Hub
Practical guides for building production-ready Spring Boot applications. From REST APIs and security to microservices and cloud deployment — everything in one place.
Spring Boot is the foundation of modern Java development. These guides cover the full stack of what you need to build, secure, deploy, and operate Spring Boot applications in production. Each article is written from practical experience, not documentation rewrites.
Security & Authentication
Spring Security configuration, JWT, OAuth2, and production-safe patterns.
Spring Boot Security: Authentication, JWT & OAuth2
Spring Security 6 configuration without WebSecurityConfigurerAdapter, stateless JWT setup, OAuth2 login, and method-level authorization.
REST API Best Practices for Production
Versioning strategies, error response standards, pagination patterns, validation, and API documentation with real-world examples.
Microservices & Spring Cloud
Architecture patterns, service communication, and cloud-native patterns with Spring Cloud.
Microservices Architecture Patterns That Work
When to use microservices, service decomposition, inter-service communication, and patterns that hold up in production.
Spring Cloud: Building Resilient Microservices
Service discovery with Eureka, circuit breakers with Resilience4j, API Gateway, and the full Spring Cloud ecosystem explained.
Spring Cloud Config: Centralized Configuration
Manage configuration across multiple services with Spring Cloud Config Server, Git-backed configs, and environment-specific overrides.
Spring Cloud Functions: Serverless Java
Write portable functions that run on AWS Lambda, Azure Functions, or Google Cloud Functions using Spring Cloud Functions.
Spring Cloud Task: Short-Lived Microservices
Build and track short-lived task applications that start, execute, and terminate — ideal for batch jobs and data processing pipelines.
GraphQL Endpoint in Spring Boot
Add a GraphQL endpoint to a Spring Boot application using Spring for GraphQL, schema definition, resolvers, and query testing.
Deployment & Infrastructure
Docker, GraalVM native images, and production deployment strategies.
Dockerizing Spring Boot: Multi-Stage Builds & Layered Jars
Optimized Docker images for Spring Boot using multi-stage builds, layered jars, and Docker Compose for local development.
GraalVM Native Image: Faster Startup, Lower Memory
Compile Spring Boot apps to native executables with GraalVM. Millisecond startup times and significantly reduced memory footprint for serverless and containers.
Java Virtual Threads with Spring Boot
Enable Project Loom virtual threads in Spring Boot 3.2+ for high-throughput I/O-bound workloads without reactive programming complexity.
Observability & Operations
Monitoring, logging, error handling, and keeping your application healthy in production.
Monitoring with Actuator and Prometheus
Expose metrics with Spring Boot Actuator, scrape with Prometheus, and visualize with Grafana. Full production monitoring setup.
Logging Best Practices: Logback, SLF4J & Structured Logging
Configure Logback, write structured JSON logs, add correlation IDs across distributed services, and ship logs to centralized systems.
Error Handling: @ControllerAdvice and ProblemDetail
Consistent API error responses using @ControllerAdvice, RFC 9457 ProblemDetail, custom exceptions, and validation error formatting.
Data, Caching & Scheduling
Persistent data access, performance optimization, and background job execution.
Spring Boot Caching with Redis
Add Redis-backed caching to Spring Boot with @Cacheable, cache eviction strategies, TTL configuration, and avoiding common cache pitfalls.
Scheduling: @Scheduled, Cron Expressions & Quartz
Run background tasks with @Scheduled, write cron expressions that actually work, and integrate Quartz for persistent, clustered job scheduling.
Spring Batch: Job Runner for Database Exports
Build a complete Spring Batch job for database exports with ItemReader, ItemProcessor, ItemWriter, step configuration, and job monitoring.
@SecondaryTable: Mapping One Entity to Multiple Tables
Use JPA's @SecondaryTable to map a single entity class to multiple database tables — useful for legacy schemas and vertical partitioning.
Testing
Integration testing strategies that give you confidence without slowing you down.
Testcontainers Integration Testing: A Complete Guide
Run real databases and services in Docker containers during tests with Testcontainers. Setup, patterns, and performance tips for Spring Boot test suites.
Migrations & Tooling
Keep your Spring Boot projects up to date with automated tooling.
Simplify Spring Boot Migration with OpenRewrite
Use OpenRewrite recipes to automate Spring Boot version upgrades, namespace changes, and deprecated API replacements across large codebases.
Three Tools to Keep Dependencies Up to Date
Dependabot, Renovate, and the versions-maven-plugin compared. Practical setup for automated dependency updates in Spring Boot projects.
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