Invisible NULL. The instrument, timestamp, daily open, high, low and
last prices, percentage change from the open, and the pricing component
(M for mid, B for bid, A for ask) is output to the console.
Arguments
instrument
string containing the base currency and quote currency
delimited by '_' or '-' (e.g. "USD_JPY" or "usd-jpy"). Use the
oanda_instruments function to return a list of all valid
instruments.
price
[default "M"] pricing component, one of "M" (midpoint), "B"
(bid) or "A" (ask).
server
(optional) specify the "practice" or "live" server according to
the account type held. If not specified, will default to "practice",
unless this has been changed by oanda_switch.
apikey
(optional) string containing the OANDA fxTrade API key
(personal access token), or function that returns this string. Does not
need to be specified if already stored as the environment variable
OANDA_API_KEY or by oanda_set_key. Can also be
entered interactively if not specified.