Techniques for replication of a client database to remote devices

An apparatus comprising:

• a processor circuit on a device;
• a server database management component operative on the processor circuit to:
• receive a subscription command from a client device at a database synchronization server, the subscription command specifying a particular object collection for which the client device wishes to receive updates, wherein the object collection is a database;
• send an object collection snapshot of the particular object collection to the client device, the object collection snapshot comprising a current state of the particular database;
• receive a change to the particular object collection from another client device;
• and
• update the database on the database synchronization server with the change;
• and
• an update queue management component operative to:
• subscribe the client device to an update queue, the update queue associated exclusively with the particular object collection on the database synchronization server, the subscribing indicating that changes to the particular object collection added to the update queue should be sent to the client device via push notification;
• generate an update comprising the change;
• detect that the client device has network accessibility with the database synchronization server;
• send the update to the client device based on a push notification;
• advance a queue cursor for the client device past the update in the update queue;
• and
• add the update to the update queue for delivery to the subscribed client device.

At least one non-transitory, computer-readable storage medium comprising instructions that, when executed, cause a system to:

• receive a subscription command from a client device at a database synchronization server, the subscription command specifying particular object collection for which the client device wishes to receive updates, wherein the object collection is a database;
• send an object collection snapshot of the particular object collection to the client device, the object collection snapshot comprising a current state of the particular database;
• subscribing the client device to an update queue exclusively associated with the particular object collection on the database synchronization server, the subscribing indicating that changes to the particular object collection received from other client devices and added to the update queue should be sent to the client device via push notification;
• receive a change to the particular object collection from another client device;
• generate an update comprising the change;
• update the database on the database synchronization server with the change;
• detect that the client device has network accessibility with the database synchronization server;
• send the collection update to the client device based on a push notification;
• advance a queue cursor for the client device past the update in the update queue;
• and
• add the update to the update queue for delivery to the subscribed device.