createExchangeCode method Null safety
creates an exchange code to authenticate with the fortnite api. an exchange code is valid only for 30 seconds. an exchange code can be used to launch game/ perform any action on account.
Implementation
Future<String> createExchangeCode() async {
dynamic res = await _client.send(
method: "GET",
url: Endpoints().oauthExchange,
);
return res["code"];
}