Meteor has an oplog-tailing MongoDB driver, implemented here: https://github.com/meteor/meteor/blob/devel/packages/mongo/oplog_observe_driver.js https://github.

Meteor has an oplog-tailing MongoDB driver, implemented here: https://github.com/meteor/meteor/blob/devel/packages/mongo/oplog_observe_driver.js https://github.com/meteor/meteor/blob/devel/packages/mongo/o... You could use Meteor as your server, and talk to it over DDP from your frontend C++ app.