Return list of instruments including major currencies, metals, commodities, government bonds and stock indices for which pricing data is available from the OANDA fxTrade API.
oanda_instruments(server, apikey)(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.
(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 by oanda_set_key(). Can also be entered interactively if not specified.
A data.frame containing the instrument name, full display name, and type.
This function returns a data.frame listing the instrument names available for an account associated with the supplied OANDA fxTrade API key.
For further details please refer to the OANDA fxTrade API vignette by
calling: vignette("xoanda", package = "ichimoku").
if (FALSE) {
# OANDA fxTrade API key required to run this example
oanda_instruments()
}