Sample mongodb co usage

node-mongodb-co ex

'use strict';
var co = require('co'),
	MongoClient = require('mongodb').MongoClient;

function getConnection(connectionString) {
	return function(next) {
		MongoClient.connect(connectionString, next);
	}
}

co(function *() {
	try {
		var db = yield getConnection('mongodb://localhost/snmp');
		var collection = yield co.wrap(db.collection, db)('rawscandata5');
		var query = collection.find();
		var count = yield co.wrap(query.count, query)();
		console.log(count);
		db.close();
	} catch (ex) {
		console.error(ex);
	}
});