Meteor Mongo does not have findAndModify support - how to generate atomic counters?

[robfallows]

As long as you only need it in server code, you can do it like this:

Automatically increment order numbers

This is what I’ve done: Every collection needing an “autoincrement” gets an extra document added: {_id: "autoincrement", value: 0}. I usually put the insert(s) in the server-side Meteor.startup(): Meteor.startup(function() { try { MyCollection.insert({_id: 'autoincrement', value: 0}); } catch(err) { // Will always get here once the doc's in place, so just ignore } try { AnotherCollection.insert({_id: 'autoincrement', value: 0}); } catch(err) { // Will always get here …