requestToken method
Implementation
Future<Token> requestToken() async {
late Token token;
final String urlParams = _constructUrlParams();
if (_config.context != null) {
String initialURL =
("${_authorizationRequest.url}?$urlParams").replaceAll(" ", "%20");
_webAuth(initialURL);
} else {
throw Exception("Context is null. Please call setContext(context).");
}
var jsonToken = await _onCode.first;
token = Token.fromJson(jsonToken);
return token;
}