Kotlin Springgateway Circuitebreak

add dependency

• dependency library 를 추가 ```xml

org.springframework.cloud spring-cloud-starter-circuitbreaker-reactor-resilience4j

- Declare circuit breaker in application.yaml

```yaml
spring:
  cloud:
    gateway:
      routes:
        - id: my_route
          uri: http://localhost:8060/
          filters:
            - name: CircuitBreaker
              args:
                name: myCircuitBreaker
                fallbackUri: forward:/inCaseOfFailure

• Declare the endpoint which will be called in the case of failure (a connection error, for example)

  @RequestMapping("/inCaseOfFailure")
    public Mono<ResponseEntity<String>> inCaseOfFailureUseThis() {
        return Mono.just(ResponseEntity.status(HttpStatus.SERVICE_UNAVAILABLE).body("body for service failure case"));
  }
  

참고

• Spring Cloud Gateway 500 when an instance is down