How can I handle errors using Resilience4j?

How can I handle errors using Resilience4j?

Resilience4j provides several mechanisms for error handling, such as Circuit Breakers, Retry, and Rate Limiter. Which one are you interested in?

I'm particularly interested in Circuit Breakers. How do they work?

Circuit Breakers monitor calls to a service and can open the circuit to prevent further calls if failures exceed a threshold. This helps to avoid overwhelming a failing service.

How do I implement a Circuit Breaker in my Spring Boot application?

You can implement a Circuit Breaker in Spring Boot by adding the Resilience4j dependency, configuring it in your application properties, and using the @CircuitBreaker annotation on your service methods.

Can you give me a code example?

Sure! Here's a simple example:

@CircuitBreaker
public String callExternalService() {
    // logic to call external service
}