Resolve DCIDs from Wikidata IDs via Data Commons — dc_get_dcids_by_wikidata

Resolves Wikidata identifiers (e.g., "Q30" for the United States) to Data Commons DCIDs using the wikidataId property.

dc_get_dcids_by_wikidata_id(
  wikidata_ids,
  api_key = Sys.getenv("DATACOMMONS_API_KEY"),
  base_url = Sys.getenv("DATACOMMONS_BASE_URL", unset =
    "https://api.datacommons.org/v2/"),
  return_type = "json"
)

Arguments

wikidata_ids: The Wikidata IDs of the entities to look up.
api_key: Your Data Commons API key. If not provided, uses the environment variable DATACOMMONS_API_KEY.
base_url: The base URL of the Data Commons API. Defaults to the public endpoint. For custom deployments, must end with /core/api/v2/.
return_type: Return format: either "list" (parsed R object) or "json" (JSON string).

Value

A list or JSON string, depending on return_type.

Examples

# Get the DCID for the United States (Wikidata ID "Q30")
dc_get_dcids_by_wikidata_id("Q30")
#> [1] "{\"entities\":[{\"node\":\"Q30\",\"candidates\":[{\"dcid\":\"country/USA\"}]}]}"

# Batch query for multiple Wikidata IDs
dc_get_dcids_by_wikidata_id(c("Q30", "Q60"))
#> [1] "{\"entities\":[{\"node\":\"Q60\",\"candidates\":[{\"dcid\":\"geoId/3651000\"}]},{\"node\":\"Q30\",\"candidates\":[{\"dcid\":\"country/USA\"}]}]}"