Is there a way to make ObjectIds default toString output base64 instead of hex?

[fresheneesz]

I'd like to significantly shorten the _ids I pass to clients from my server, but I'm relying on the default toString() implementation in a ton of places. It would be way more convenient for me to be able to change the default encoding so that when I JSON.stringify my documents, ObjectIds automatically output as base 64. Is there a way to do this?

[vkarpov15]

Not that I know of, I don't think mongoskin has any helpers for this. You can always just do doc._id.id.toString('base64');

[fresheneesz]

Actually, to anyone who sees this issue, I would instead recommend doing new Buffer(doc._id.toHexString(),'hex').toString('base64') because the result ends up being smaller for some reason. I'm not entirely sure why, but it seems like objectId.id contains more information that needed to represent the id. At least that's what I found in my testing.