getCurrency method
Get a currency
Gets a single currency by id. Currency codes will conform to the ISO 4217 standard where possible. Currencies which have or had no representation in ISO 4217 may use a custom code.
https://docs.cloud.coinbase.com/exchange/reference/exchangerestapi_getcurrency
Implementation
Future<http.Response> getCurrency({
required String currencyId,
}) async =>
get(path: '/currencies/$currencyId');