Linked Entity Retrieval
NGSI-LD models graph of Entities through explicit relationships (e.g. owns / livesAt). Up to v1.7, retrieval can only be done step-by-step. From v1.8 whole subgraph should be retrievable (default: expand one level). With “join=inline”, they can be represented in a hierarchical structure. With “join=flat”, the relationships stay as they are, but the target entities are returned in the result lists.