newbie question - how to create an otpFn that isn't skipped over?

[klauern]

Hello!

This might be a newbie question, but I am attempting to create an otpFn to prompt for the MFA code, and it seems to keep returning early:

(async () => {
  const api = new AmazonOrderReportsApi({
    logLevel: LogLevel.DEBUG,
    username: '[email protected]',
    password: 'pass',
    otpFn: async () => {
      let answer = '';
      const rl = readline.createInterface({
        input: process.stdin,
        output: process.stdout,
      });
      await rl.question('what is otp Code? ', (ans) => {
        answer = ans;
      });
      return answer;
    },
  });
  ... // rest omitted

What I get though is this in the log. It doesn't even wait for the prompt:

{"level":"debug","message":"Entering OTP code","metadata":{},"timestamp":"2022-01-04T01:36:36.285Z"}
what is otp Code? {"level":"debug","message":"nick remember device input","metadata":{},"timestamp":"2022-01-04T01:36:36.290Z"}
{"level":"debug","message":"Clicking input[type=submit]","metadata":{},"timestamp":"2022-01-04T01:36:36.309Z"}
{"level":"debug","message":"Account fixup","metadata":{},"timestamp":"2022-01-04T01:36:36.897Z"}
/Users/klauern/dev/js-ts/amazon-order-reports-api/lib/index.js:198
            throw new Error(message ?? `Assertion failed! No element matching selector: ${selector}`);
                  ^
Error: No sign-out link detected, failed to sign in?
... bunch of stacktrace
Waiting for the debugger to disconnect...