Before the user makes any calls requiring an authorized session, check if an
OAuth token or session is not already available, call ig_auth to
by default initiate the OAuth 2.0 workflow that will load a token from cache or
launch browser flow. Return the bare token. Use
access_token() to reveal the actual access token, suitable for use
with curl.
ig_auth_check(verbose = FALSE)logical; do you want informative messages?
a Token2.0 object (an S3 class provided by httr) or a
a character string of the sessionId element of the current authorized
API session