Reference

API KEY Functions to get and set API key.
set_api_key()	Set API key
get_api_key()	Retrieve API key
Calling API Data Functions for reading data from the API into R.
query_text()	Search the database
query_hits()	Search the database and return how many hits
document_meta()	Return the meta data for a given document
document_journey()	Look up the journey id for a give document
document_traveller()	Return the traveller information for given journey id
document_countries()	Look up the countries that the journey went through
historical_placenames()	Look up historical placenames