JSONObject remove empty value pairs

Question

Here is my Json File:

{  
   \"models\":{},
   \"path\":[  
      {  
         \"path\":\"/web-profiles\",
         \"operations\":[  
            {  
               


        

Answer 1

Don't know about any build-in functions but you could try this

public boolean cleanJSON(Object arg) throws JSONException{
    boolean valueExist = false;
    if(arg instanceof String){
        String str= (String)arg;
        if(!str.equals("")) valueExist = true;
    }else if(arg instanceof JSONObject){
        JSONObject obj = (JSONObject)arg;
        Iterator iter = obj.keys();
        ArrayList fields = new ArrayList<>();
        while(iter.hasNext())   fields.add(iter.next());
        for(String field:fields){
            Object value = obj.get(field);
            if(cleanJSON(value))    valueExist = true;
            else                    obj.remove(field);
        }
    }else if(arg instanceof JSONArray){
        JSONArray arr = (JSONArray)arg;
        for(int i=0;i

That would clean your json object from empty field(it work recursively). So if the JSON looks like this:

"operations":[  
{  
     "nickname":"",
     "type":"",
     "responseMessages":[]
}]

field "operations" will also removed.

note : JSONArray.remove only work for API 19 above