Elastic search filter plugin is not working

[Sai_Jana_Selvakumar]

input {
	http {
		host => "####" # default: 0.0.0.0
    		port => # # ##default: 8080

  	}
}


filter {

  	json {
    		source => "message"
		#remove_field => [ "message","path","type","host" ]
		}

ruby {
    	  code =>"
			#hash= {'id' => 'id' }
			chumma_id=event.get('[id]')
			event.set('delete_id',chumma_id)
"
}




     elasticsearch {
          		hosts => ["####"]
          		query => 'id:%{delete_id}'
          		fields => ["author_name", "title"] 
          		enable_sort => "false"
          		sort => "comments_count"
     }


ruby {
   	  code =>"
			event.set('del_id',event.get('[author_name]'))
		"
}


	mutate {
		remove_field => ["path","type","host", "entry","headers"]
	}

}


output {
  	stdout { codec => rubydebug }


}

i am not getting the response from the elasticsearch filter plugin.can someone whats wrong.
getting only "null" ...

Please help