CSV response from get request in elastic search - elasticsearch

Question

I am sending an http Get request to elastic search server and i want the response to be in csv format.Like in solr we can specify wt=csv is there any way In elastic Search too ?
My query is :
enter code here
http://elasticServer/_search?q=RCE:"some date" OR
VENDOR_NAME:"Anuj"&from=0&size=5&sort=#timestamp
-----After that i want to force the server to return me response in csv format

Answer 1

By default, ES supports only two data formats: JSON and YAML. However, if you're open to using Logstash, you can achieve what you want very easily like this:
input {
elasticsearch {
hosts => ["localhost:9200"]
query => 'RCE:"some date" OR VENDOR_NAME:"Anuj"'
size => 5
}
}
filter {}
output {
csv {
fields => ["field1", "field2", "field3"]
path => "/path/to/data.csv"
}
}
Since the elasticsearch input uses scrolling, you cannot specify any sorting. So if sorting is really important to you, you can use the http_poller input instead of the elasticsearch one, like this:
input {
http_poller {
urls => {
es => {
method => get
url => 'http://elasticServer/_search?q=RCE:"some date" OR VENDOR_NAME:"Anuj"&from=0&size=5&sort=#timestamp'
headers => {
Accept => "application/json"
}
}
}
codec => "json"
}
}
filter {}
output {
csv {
fields => ["field1", "field2", "field3"]
path => "/path/to/data.csv"
}
}

Answer 2

There is a ElasticSearch plugin on Github called Elasticsearch Data Format Plugin that should satisfy your requirements.