Content-Based Discovery at /catalogs Level

At the /catalog level, answers are derived from summary metadata about the entities listed within a resource (typically a catalog or a resource that contains multiple sub-resources). The following table shows an overview of the filters used at the /catalog level, as defined in the EJP RD VP API Specification [link].

The filters shown in the table below can be applied to a query to only show certain results.

Filters supported by the API endpoint: /catalogs (click for the full specification)

Metadata Concept	EJP RD Beacon v2 API Filter Term	Usage notes	EJP RD Beacon v2 Filter Type	Expected Response
Disease or Disorder	dcat:theme	All RDs that are associated within a catalog	Ontology	Result set with metadata
Phenotype	sio:phenotype	HPO terms of all phenotypes observed within a catalog of RD resources	Ontology	Result set or counts
Resource Types	rdf:type	Types of resources within the catalog	Alphanumerical	Result set
ID		The resource identifier ID within the catalog	Alphanumerical	Result set
Name	dcterms:title	The name of the resource in the catalog	Alphanumerical	Result set
Description	dcterms:description	The description of the resource in the catalog	Alphanumerical	Result set

Please note:

• Resources choose which filters (i.e., metadata concepts) they want to implement for their /catalogs endpoint.