{
  "errors": {
    "notFound": {
      "status": 404,
      "headers": {
        "Content-Type": "application/json",
        "X-Request-Id": "err-12345"
      },
      "body": {
        "error": "Not Found",
        "message": "The requested resource was not found",
        "path": "/api/flights/unknown",
        "timestamp": "2026-04-06T10:30:00Z"
      }
    },
    "badRequest": {
      "status": 400,
      "headers": {
        "Content-Type": "application/json",
        "X-Request-Id": "err-12346"
      },
      "body": {
        "error": "Bad Request",
        "message": "Invalid request parameters",
        "details": {
          "field": "date",
          "value": "invalid-date",
          "message": "Date format should be YYYY-MM-DD"
        },
        "timestamp": "2026-04-06T10:30:00Z"
      }
    },
    "unauthorized": {
      "status": 401,
      "headers": {
        "Content-Type": "application/json",
        "X-Request-Id": "err-12347"
      },
      "body": {
        "error": "Unauthorized",
        "message": "Authentication required",
        "code": "AUTH_REQUIRED",
        "timestamp": "2026-04-06T10:30:00Z"
      }
    },
    "forbidden": {
      "status": 403,
      "headers": {
        "Content-Type": "application/json",
        "X-Request-Id": "err-12348"
      },
      "body": {
        "error": "Forbidden",
        "message": "Access denied",
        "code": "ACCESS_DENIED",
        "timestamp": "2026-04-06T10:30:00Z"
      }
    },
    "serverError": {
      "status": 500,
      "headers": {
        "Content-Type": "application/json",
        "X-Request-Id": "err-12349"
      },
      "body": {
        "error": "Internal Server Error",
        "message": "An unexpected error occurred",
        "code": "INTERNAL_ERROR",
        "traceId": "abc123def456",
        "timestamp": "2026-04-06T10:30:00Z"
      }
    },
    "timeout": {
      "status": 504,
      "headers": {
        "Content-Type": "application/json",
        "X-Request-Id": "err-12350"
      },
      "body": {
        "error": "Gateway Timeout",
        "message": "The request took too long to process",
        "code": "GATEWAY_TIMEOUT",
        "timeout": 30000,
        "timestamp": "2026-04-06T10:30:00Z"
      }
    },
    "validationError": {
      "status": 422,
      "headers": {
        "Content-Type": "application/json",
        "X-Request-Id": "err-12351"
      },
      "body": {
        "error": "Validation Error",
        "message": "Request validation failed",
        "details": [
          {
            "field": "departureCity",
            "message": "Departure city is required"
          },
          {
            "field": "arrivalCity",
            "message": "Arrival city is required"
          }
        ],
        "timestamp": "2026-04-06T10:30:00Z"
      }
    },
    "rateLimit": {
      "status": 429,
      "headers": {
        "Content-Type": "application/json",
        "X-Request-Id": "err-12352",
        "Retry-After": "60"
      },
      "body": {
        "error": "Too Many Requests",
        "message": "Rate limit exceeded",
        "code": "RATE_LIMIT_EXCEEDED",
        "retryAfter": 60,
        "timestamp": "2026-04-06T10:30:00Z"
      }
    },
    "serviceUnavailable": {
      "status": 503,
      "headers": {
        "Content-Type": "application/json",
        "X-Request-Id": "err-12353"
      },
      "body": {
        "error": "Service Unavailable",
        "message": "The service is temporarily unavailable",
        "code": "SERVICE_UNAVAILABLE",
        "retryAfter": 30,
        "timestamp": "2026-04-06T10:30:00Z"
      }
    },
    "flightNotFound": {
      "status": 404,
      "headers": {
        "Content-Type": "application/json",
        "X-Request-Id": "err-12354"
      },
      "body": {
        "error": "Flight Not Found",
        "message": "Flight SU 9999 not found for date 2026-04-06",
        "flightNumber": "SU 9999",
        "date": "2026-04-06",
        "timestamp": "2026-04-06T10:30:00Z"
      }
    },
    "invalidDate": {
      "status": 400,
      "headers": {
        "Content-Type": "application/json",
        "X-Request-Id": "err-12355"
      },
      "body": {
        "error": "Invalid Date",
        "message": "Date must be within valid range",
        "minDate": "2026-01-01",
        "maxDate": "2026-12-31",
        "providedDate": "2025-01-01",
        "timestamp": "2026-04-06T10:30:00Z"
      }
    }
  }
}