Multi-Channel Notifier

Route different channels (email / SMS) to different notifier implementations. The channel comes from otp.send({ channel }).

import { MultiChannelNotifier, createAuth } from "guardo";
 
const auth = createAuth({
  jwt: { secret: "..." },
  notifier: new MultiChannelNotifier({
    email: new SendGridNotifier(),
    sms: new TwilioNotifier(),
  }),
});

If a code is sent on a channel with no registered handler, MultiChannelNotifier throws - so register every channel you call send() with.