Get list of retrievable fields — get

Get a vector of fields that you can retrieve from a given API endpoint (i.e., the fields you can pass to the fields argument in search_pv). You can limit these fields to only cover certain entity group(s) as well (which is recommended, given the large number of possible fields for each endpoint).

Usage

get_fields(endpoint, groups = NULL)

Arguments

endpoint: The API endpoint whose field list you want to get. See get_endpoints for a list of the 27 endpoints.
groups: A character vector giving the group(s) whose fields you want returned. A value of NULL indicates that you want all of the endpoint's fields (i.e., do not filter the field list based on group membership). Use the fieldsdf table (e.g., unique(fieldsdf[fieldsdf$endpoint == "patent", "group"])) to see which groups you can specify for a given endpoint.

Value

A character vector with field names.

Examples

# Get all top level (non-nested) fields for the patent endpoint:
fields <- get_fields(endpoint = "patent", groups = "patents")

# ...Then pass to search_pv:
if (FALSE) {

search_pv(
  query = '{"_gte":{"patent_date":"2007-01-04"}}',
  fields = fields
)
}
# Get patent and assignee-level fields for the patent endpoint:
fields <- get_fields(endpoint = "patent", groups = c("assignees", "patents"))

if (FALSE) {
# ...Then pass to search_pv:
search_pv(
  query = '{"_gte":{"patent_date":"2007-01-04"}}',
  fields = fields
)
}