Query.nearbyTrees.req.vtl

#set( $indexPath = "/tree/_doc/_search" )
#set( $input = $ctx.args.input)
#set( $distance = $util.defaultIfNull($input.km, 10) )
#set( $creds = "zx5dej31tt:5inkmy78lz")
{
  "version": "2018-05-29",
  "method": "POST",
  "resourcePath": "$indexPath",
  "params": {
    "headers" : {
      "Content-Type" : "application/json",
      "Authorization":"Basic $util.base64Encode($creds)"
    },
    "body": {
      "size": #if( $input.limit ) $input.limit #else 100 #end,
      "sort": [{
        "_geo_distance": {
          "location": $util.toJson($input.location),
          "order": "asc",
          "unit": "km", 
          "distance_type": "plane" 
        }
      }],
      "query": {
        "bool" : {
          "must" : {
              "match_all" : {}
          },
          "filter" : {
            "geo_distance" : {
                "distance" : "${distance}km",
                "location" : $util.toJson($input.location)
            }
          }
        }
      }
    }
  }
}