Subscription-Notification Mechanisms For Synchronization Of Distributed States

摘要

Apparatus, systems, methods, and related computer program products for synchronizing distributed states amongst a plurality of entities and authenticating devices to access information and/or services provided by a remote server. Synchronization techniques include client devices and remote servers storing buckets of information. The client device sends a subscription request to the remote serve identifying a bucket of information and, when that bucket changes, the remote server sends the change to the client device. Authentication techniques include client devices including unique default credentials that, when presented to a remote server, provide limited access to the server. The client device may obtain assigned credentials that, when presented to the remote server, provide less limited access to the server.

主权项

1. A method of synchronizing data between a client device and a remote server, the client device storing a plurality of buckets of information each including a plurality of field-value pairs, the remote server storing a plurality of buckets of information each including a plurality of field-value pairs, the method comprising:
receiving, at the remote server from the client device, a subscription request identifying a bucket of information stored on the remote server, the identified bucket of information corresponding to one of the plurality of buckets of information stored at the client device; determining, by the remote server, whether there is a difference in state between the identified bucket of information stored at the remote server and the corresponding bucket of information stored at the client device; and notifying, if it is determined that there is a difference in state between the identified bucket of information stored at the remote server and the corresponding bucket of information stored at the client device, the client device with information representative of at least one difference between the identified bucket of information stored at the remote server and the corresponding bucket of information stored at the client device.