resilience4jspringboot

Resilience4jspringboot is a module in the resilience4j ecosystem that provides Spring Boot support for resilience4j's fault-tolerance capabilities. It enables automatic configuration and a Spring-friendly programming model, allowing developers to apply circuit breakers, retries, bulkheads, rate limiters, and time limiters in Spring Boot applications with minimal boilerplate.

The module integrates with Spring Boot through auto-configuration, Spring annotations, and Spring Boot properties. Developers can declare resilience patterns using annotations such as @CircuitBreaker, @Retry, @Bulkhead, @TimeLimiter, and @RateLimiter, and configure instance-level behavior via application.properties or application.yaml under resilience4j.* keys. It is designed to work alongside Spring Boot's metrics and health tooling, providing visibility into resilience behavior.

Under the hood, resilience4jspringboot wires resilience4j components into Spring beans, typically via proxies, to intercept method invocations and apply the configured policies. It also provides metrics and health indicators through Spring's actuator and Micrometer integration, enabling monitoring of fault-tolerance behavior.

The project targets compatibility with supported Spring Boot versions and resilience4j releases. It is commonly used to implement resilient service-to-service calls in microservices or modular applications, balancing reliability with throughput while maintaining a declarative, centralized configuration model. It relies on the resilience4j core library and complements it by adapting features to the Spring Boot ecosystem rather than replacing core functionality.