Drilling Down Through Categories via JS API

Overview

Function	`drillDownCategories(drilldownRequest, success, error)`
Description	Returns the child categories of the given category along with their scores.
Output	A JSON object containing child categories along with their scores in the ‘message’ element within the argument of the success callback.

Example

var drillDownReq = {
	tableName : "TEST", //tableName
               drillDownInfo : {
                   fieldName : "facetField1", //field which is indexed as a FACET
                   categoryPath : [ "category", "subCategory"] //Path being drilled down, optional
                   query : "logFile : wso2carbon.log" //search query, optional
                   scoreFunction : "sqrt(weight)" //score function
           }
 };
client.drillDownCategories(drillDownReq, function(data) {
      console.log (data["message"]);
}, function(error) {
      console.log("error occured: " + error);  
});

If categoryPath is not provided, it takes the root element of the FACET field as the default path. Therefore, the top level facets are returned.

Sample output

 {
    "categoryPath" : [category, subCategory],
    "categories" : [child1, child2, child3]
}