GetTenantFromContext extracts the tenant name, if any, from the provided context.

NewCreateEntityHandler handles incoming POST requests for NGSI entities.

NewMergeEntityHandler handles PATCH requests for NGSI entitities.

NewQueryEntitiesHandler handles GET requests for NGSI entities.

NewRetrieveAvailableEntityTypesHandler handles GET requests for the entity types available in this NGSI-LD system.

NewRetrieveEntityHandler retrieves entity by ID.

NewUpdateEntityAttributesHandler handles PATCH requests for NGSI entitity attributes.

NGSIMiddleware packs any tenant id into the context.

TODO: Load from file in file system instead of hardcoding a constant.