node.js - How to use aggregation framework to search text with nodejs -


as mentioned in release notes of mongodb 2.6, can text search in aggregation framework. can in shell

db.products.aggregate([{     $match: {         $text: {             $search: 'keyword'         }     } }]);

everything works alright here. want same thing nodejs with: 

var aggrconditions = [{     $match: {         $text: {             $search: 'keyword'         }     } }]; db.collection(product_coll_name).aggregate(aggrconditions, function(err, result) {     if (err) throw err;     // });

it complains about:

exception: invalid operator: $search

i'm using node native client 1.4.5. i'm doing wrong?


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