从响应命中中删除元数据。命中

Question

我从搜索API得到的响应如下所示

{  
    "took":88,
    "timed_out":false,
    "_shards":{  
        "total":3,
        "successful":3,
        "failed":0
    },
    "hits":{  
        "total":2,
        "max_score":1.0,
        "hits":[  
            {  
                "_index":"myindex",
                "_type":"mytype",
                "_id":"first",
                "_score":1.0,
                "fields":{  
                    "name":[  "John Smith"  ]
                }
            },
            {  
                "_index":"myindex",
                "_type":"mytype",
                "_id":"second",
                "_score":1.0,
                "fields":{  
                    "name":[  "John Doe"  ]
                }
            }
        ]
    }
}

我希望从每个hits.hits元素中删除_index、_type和_score字段。我该怎么做？

Answer 1

您可以通过在查询字符串中指定filter_path参数来使用响应筛选，如下所示：

curl -XPOST 'localhost:9200/_search?pretty&fields=name&filter_path=hits.hits.fields' -d '{
    "query": {
        "match": {
            "name": "john"
        }
    }
}'

或改为使用源筛选

curl -XPOST 'localhost:9200/_search?pretty&_source=name&filter_path=hits.hits._source' -d '{
    "query": {
        "match": {
            "name": "john"
        }
    }
}'

您的响应将如下所示：

{  
    "hits":{  
        "hits":[  
            {  
                "fields":{  
                    "name":[  "John Smith"  ]
                }
            },
            {  
                "fields":{  
                    "name":[  "John Doe"  ]
                }
            }
        ]
    }
}