{
  "title": "Resilience4j Circuit Breaker Configuration Example",
  "description": "Spring Boot application.yml configuration for a circuit breaker protecting an external payment service",
  "language": "yaml",
  "example": {
    "resilience4j": {
      "circuitbreaker": {
        "configs": {
          "default": {
            "slidingWindowType": "COUNT_BASED",
            "slidingWindowSize": 10,
            "minimumNumberOfCalls": 5,
            "failureRateThreshold": 50,
            "slowCallRateThreshold": 100,
            "slowCallDurationThreshold": "2s",
            "waitDurationInOpenState": "30s",
            "permittedNumberOfCallsInHalfOpenState": 3,
            "automaticTransitionFromOpenToHalfOpenEnabled": true
          }
        },
        "instances": {
          "paymentService": {
            "baseConfig": "default",
            "failureRateThreshold": 30,
            "waitDurationInOpenState": "60s",
            "recordExceptions": [
              "java.io.IOException",
              "java.util.concurrent.TimeoutException"
            ],
            "ignoreExceptions": [
              "com.example.BusinessException"
            ]
          }
        }
      }
    }
  },
  "notes": "The paymentService instance inherits from the default config but overrides failure threshold and wait duration. IOException and TimeoutException are recorded as failures; BusinessException is ignored."
}