使用Rest进行弹性搜索查询

Question

I am trying to execute below query in elastic search using rest call which is not providing aggregation results.But if i excute the same query in elasticsearch browser it provides aggregation results.

Query:

{ "aggregations": { "by_salary": { "terms": { "field": "salary" } } } }

Rest call:

http://localhost:9200/tcx_transaction/_search?query={ "aggregations": { "by_salary": { "terms": { "field": "salary" } } } }

Results:

"aggregations": {
    "by_salary": {
        "doc_count_error_upper_bound": 0,
        "sum_other_doc_count": 0,
        "buckets": [
            {
                "key": "manager",
                "doc_count": 39420
            }
            ,
            {
                "key": "developer",
                "doc_count": 13140
            }
            ,
            {
                "key": "HR",
                "doc_count": 4380
            }
        ]
    }
}

Answer 1

You are misusing the REST interface. Take a peek at the parameters allowed for URI searching . query isn't one of them. q is but that is specifically for a very special type of query .

As pickypg mentioned, what you have set to query should be part of the HTTP POST body.

Answer 2

try installing "curl" and then, from shell:

curl -XPOST 'http://localhost:9200/tcx_transaction/_search' -d 
'{ "aggregations": { "by_salary": { "terms": { "field": "salary" } } } }'