I have some data that I want to sort but when I sort them sort query didn't work very well. So, here what I got after making my query:
"Group3": {
                      "buckets": [
                        {
                          "doc_count": 8, 
                          "key": "1"
                        }, 
                        {
                          "doc_count": 1, 
                          "key": "11"
                        }, 
                        {
                          "doc_count": 1, 
                          "key": "15"
                        }, 
                        {
                          "doc_count": 1, 
                          "key": "18"
                        }, 
                        {
                          "doc_count": 1, 
                          "key": "8"
                        }
                      ], 
                      "doc_count_error_upper_bound": 0, 
                      "sum_other_doc_count": 0
                    }, 
                    "doc_count": 12, 
                    "key": "mke"
This my query:
   "aggs": {
                    "Group1": {
                        "terms": {
                            "field": "method.keyword",
                            "include": ".*POST.*",
                        },
                        "aggs": {
                            "Group2": {
                                "terms": {
                                    "field": "keyword.keyword",
                                    "size": 11593,
                                },
                                "aggs": {
                                    "Group3": {
                                        "terms": {
                                            "field": "amount.keyword",
                                            "size": 100,
                                        }
                                    }
                                },
                            }
                        },
                    }
                }
What I want is output need to show me the top key value among them, like this:
"Group3": {
                      "buckets": [
                        {
                          "doc_count": 1, 
                          "key": "18"
                        }
                  
                      ], 
                      "doc_count_error_upper_bound": 0, 
                      "sum_other_doc_count": 0
                    }, 
                    "doc_count": 12, 
                    "key": "mke"
How can I do that
