Circuit Breaker Pattern in Microservices using Spring Boot 3, WebClient and Resilience4j

Learn how to implement the Circuit Breaker pattern in Spring Boot 3+ using WebClient and Resilience4j. Build a complete example with multiple microservices and fault tolerance.

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🚀 Introduction: Why Circuit Breaker Matters in Microservices?

In microservices architecture, failures in one service can impact multiple services. Common issues include:
✔ Network failures
✔ Service timeouts
✔ Slow response times

Without proper handling, these failures can lead to:
❌ Increased latency
❌ System-wide slowdowns
❌ Cascading failures across microservices

✅ Solution: The Circuit Breaker Pattern

The Circuit Breaker Pattern helps by:
1️⃣ Detecting service failures
2️⃣ Preventing unnecessary calls to…