# Create a simple http status code watcher

**URL:** <https://discuss.elastic.co/t/create-a-simple-http-status-code-watcher/224891>\
**Category:** Elasticsearch\
**Created:** [March 24, 2020, 5:19pm UTC](https://discuss.elastic.co/t/create-a-simple-http-status-code-watcher/224891 "2020-03-24T17:19:45Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![leftright1](https://avatars.discourse-cdn.com/v4/letter/l/f04885/32.png) [@leftright1](https://discuss.elastic.co/u/leftright1)\
**Post date:** [March 24, 2020, 5:19pm UTC](https://discuss.elastic.co/t/create-a-simple-http-status-code-watcher/224891/1 "2020-03-24T17:19:45Z")

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Hi  
I am pretty new to this and I have been studying the docs for the last two days but I am struggling to create a simple watcher that does following:

From a Heartbeat that checks multiple URLs and sends the log to the `hearbeat*` index alert me if at least one of the HTTP Status code was NOT 200 in the last 5 minutes. (Ideally I want the alert to happen if two or more response codes were not 200 in the last 5 minutes but I haven't gotten that far)

This is my current config

```auto
{
  "trigger": {
    "schedule": {
      "interval": "1m"
    }
  },
  "input": {
    "search": {
      "request": {
        "search_type": "query_then_fetch",
        "indices": [
          "heartbeat*"
        ],
        "rest_total_hits_as_int": true,
        "body": {
          "size": 0,
          "query": {
            "bool": {
              "filter": {
                "range": {
                  "@timestamp": {
                    "gte": "{{ctx.trigger.scheduled_time}}||-5m",
                    "lte": "{{ctx.trigger.scheduled_time}}",
                    "format": "strict_date_optional_time||epoch_millis"
                  }
                }
              }
            }
          },
          "aggs": {
            "bucketAgg": {
              "terms": {
                "field": "http.response.status_code",
                "size": "5",
                "order": {
                  "metricAgg": "desc"
                }
              },
              "aggs": {
                "metricAgg": {
                  "avg": {
                    "field": "http.response.status_code"
                  }
                }
              }
            }
          }
        }
      }
    }
  },
  "condition": {
    "script": {
      "source": "ArrayList arr = ctx.payload.aggregations.bucketAgg.buckets; for (int i = 0; i < arr.length; i++) { if (arr[i]['metricAgg'].value !== params.threshold) { return true; } } return false;",
      "lang": "painless",
      "params": {
        "threshold": 200
      }
    }
  },
  "actions": {
   
  }
}

```

I was able to write a "Alert me if any of the response codes where higher than 200" but that did not include the condition if there was no response code at all and the field `http.response.status_code` was empty. No http response should also trigger an alert.

Any help would be much appreciated

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [April 21, 2020, 5:19pm UTC](https://discuss.elastic.co/t/create-a-simple-http-status-code-watcher/224891/2 "2020-04-21T17:19:47Z")

</div>

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