The short course aims to provide the foundation for understanding NGSI-LD Context Broker(s). The course will begin with a brief introduction to JSON-LD (JSON Linked Data) since it is the data format used by NGSI-LD. Next, there will be a brief mention of the history of NGSI-LD and who are the organizations that are currently using it. After that, the key components and aspects of an NGSI-LD Context Broker will be described. Specifically:
· NGSI-LD Tenant and Scope
· NGSI-LD Entity, Attributes and SubAttributes
· The @context field(s) – related to JSON-LD
· The possible formats and modes of presentation of a JSON-LD (e.g., normalized)
· The API exposed by an NGSI-LD Context Broker
· As an NGSI-LD Context Broker allows querying entities by filtering them for different attributes
· NGSI-LD Subscription
· Key Differences between NGSIv2 and NGSI-LD
· Short Demo about NGSI-LD Subscriptions
Lecture by Dr. A. Filograna and M. Basile.
Link to video
Uploaded by Aristotle University of Thessaloniki