passwordless auth0 with amazon cognito

1-main.js

// const auth0 = require('auth0-js');

const webAuth = new auth0.WebAuth({
  domain:   '<YOUR_DOMAIN>',
  clientID: '<YOUR_CLIENT_ID>',
});

2-start.js

const phoneNumber = '+819012345678';

webAuth.passwordlessStart({
  connection: 'aws-sns',
  send: 'code',
  phoneNumber: phoneNumber,
}, (err, res) => {
  if (err) {
    console.error(err);
    return;
  }

  // sms has sent to phoneNumber
});

3-login.js

const phoneNumber = '+819012345678';
const code = '123456';

webAuth.client.loginWithResourceOwner({
  connection: 'aws-sns',
  scope: 'openid',
  username: phoneNumber,
  password: code,
}, (err, res) => {
  if (err) {
    console.error(err);
    return;
  }

  // pass this token as aws credentials
  localStorage.setItem('idToken', res.idToken);
});

_isLogin.js

// const jwt_decode = require('jwt-decode');

function isTokenExpired(token) {
  const decoded = jwt_decode(token);

  if (!decoded.exp) {
    return true;
  }

  const now = Math.floor(Date.now() / 1000);
  if (now >= decoded.exp) {
    return true;
  }

  return false;
}

const idToken = localStorage.getItem('idToken');
const isLogin = idToken !== null && isTokenExpired(idToken) === false;