How do I convert a JavaScript object to a MongoDB BSON object?

I have the following Javascript object, how can I convert it to BSON for insert in MongoDB (and transform those date string in ISODate)?

{ name: 'Event 4',
  personsMax: 2,
  begin: '2014-09-22T19:00:20.000Z',
  end: '2014-09-22T21:00:20.000Z',
  creator: 'Jack',
  created: '2014-09-22T14:52:20.517Z',
  refDate: '2014-10-08T00:00:00.000Z',
  whoIsIn: { jack: true },
 id: 4 }

I'm using nod.js + node-mongodb-native client.

After db.insert in mongodb I have:

db.test.find();

{ "name" : "Event 4", "personsMax" : 2, "begin" : "2014-09-22T19:00:20.000Z", 
"end" : "2014-09-22T21:00:20.000Z", "creator" : "Jack", 
"created" : "2014-09-22T14:52:20.517Z", "refDate" : "2014-10-08T00:00:00.000Z", 
"whoIsIn" : { "jack" : true }, "id" : 4, "_id" : ObjectId("542038e4a3fbfcf81bace0d7") }

I suspect those "begin", "end", "created", "refDate" fields was inserted as String, not Date (or ISODate).

I'm wrong?

Thanks.

Solution

You don't need to convert anything to BSON. Mongo handles this for you. Mongo only uses BSON to store it's data internally - you interface with it using JSON and your library code (in your case node-mongodb-native).

With regard to the date objects - you can create them as normal JavaScript Date objects - again, mongo will handle these and convert them as needed during the insertion process.