Elasticsearch query must not match text from field

Question

I want to get the results that do not match \"statusCode\": 200

In order to match text from field you use

GET index01/_search?pretty
{
  \"query\":{
            


        

Answer 1

Try this instead

GET ucs_heartbeat/_search?pretty
{
  "query": {
    "bool": {
      "must_not": [
        {
          "term": {
            "statusCode": 200
          }
        }
      ]
    }
  }
}