spring-boot-resilience4j
Fault tolerance and resilience patterns for Spring Boot microservices using Resilience4j.
- Provides six core patterns: circuit breaker, retry with exponential backoff, rate limiter, bulkhead (semaphore and thread pool), time limiter, and fallback mechanisms
- Annotation-based integration with Spring Boot 3.x AOP; patterns can be stacked on single methods for comprehensive fault tolerance
- Includes configuration examples for all patterns in YAML, with health indicator and Actuator endpoint integration for monitoring circuit breaker states and metrics
- Best practices cover idempotent retries, appropriate failure thresholds, constructor injection, and graceful degradation through fallback methods
Spring Boot Resilience4j Patterns
Overview
Provides Resilience4j patterns (circuit breaker, retry, rate limiter, bulkhead, time limiter, fallback) for Spring Boot 3.x fault tolerance with configuration and testing workflows.
When to Use
- Implementing fault tolerance and preventing cascading failures
- Adding circuit breakers, retry logic, or rate limiting to service calls
- Handling transient failures with exponential backoff
- Protecting services from overload and resource exhaustion
- Combining multiple patterns for comprehensive resilience
Instructions
1. Setup and Dependencies
Add Resilience4j dependencies to your project. For Maven, add to pom.xml:
More from giuseppe-trisciuoglio/developer-kit
shadcn-ui
Provides complete shadcn/ui component library patterns including installation, configuration, and implementation of accessible React components. Use when setting up shadcn/ui, installing components, building forms with React Hook Form and Zod, customizing themes with Tailwind CSS, or implementing UI patterns like buttons, dialogs, dropdowns, tables, and complex form layouts.
17.1Ktailwind-css-patterns
Provides comprehensive Tailwind CSS utility-first styling patterns including responsive design, layout utilities, flexbox, grid, spacing, typography, colors, and modern CSS best practices. Use when styling React/Vue/Svelte components, building responsive layouts, implementing design systems, or optimizing CSS workflow.
10.9Kunit-test-bean-validation
Provides patterns for unit testing Jakarta Bean Validation (JSR-380), including @Valid, @NotNull, @Min, @Max, @Email constraints with Hibernate Validator. Generates custom validator tests, constraint violation assertions, validation groups, and parameterized validation tests. Validates data integrity logic without Spring context. Use when writing validation tests, bean validation tests, or testing custom constraint validators.
2.0Kreact-patterns
Provides comprehensive React 19 patterns for Server Components, Server Actions, useOptimistic, useActionState, useTransition, concurrent features, Suspense boundaries, and TypeScript integration. Generates executable code patterns, validates security for public endpoints, and optimizes performance with React Compiler or manual memoization. Proactively use when building React 19 applications with Next.js App Router, implementing optimistic UI, or optimizing concurrent rendering.
1.8Ktypescript-docs
Generates comprehensive TypeScript documentation using JSDoc, TypeDoc, and multi-layered documentation patterns for different audiences. Use when creating API documentation, architectural decision records (ADRs), code examples, and framework-specific patterns for NestJS, Express, React, Angular, and Vue.
1.2Knestjs
Provides comprehensive NestJS framework patterns with Drizzle ORM integration for building scalable server-side applications. Generates REST/GraphQL APIs, implements authentication guards, creates database schemas, and sets up microservices. Use when building NestJS applications, setting up APIs, implementing authentication, working with databases, or integrating Drizzle ORM.
1.2K