/*
query originally looks like this:
datastore.createQuery('Messages').filter('sender',username).limit(10).autoPaginate(false);
*/

  var query = nextQuery_var_passed_in_from_client;
  getmessages(query,function(err,data){
        if(err){
          console.log('error: ' + err);
        }
    });

});

//callback function
function getrecmessages(query,callback){
    datastore.runQuery(query, function(err, entities, nextQuery, apiResponse){
        if (err) {
            return(callback(err));
        }

        if (nextQuery) {
          console.log('nextQuery = ' + JSON.stringify(nextQuery) );
            if(entities){
                console.log(entities);
            }else{
               console.log('no entities');
         }
        } else {
            // No more results exist.
            console.log('NextQuery IS NULL' );
        }
    });
}