Custom validators

Create validators to be used in your messages.

Examples: E-mail, color picker, etc.

Define

bot.validators.define('email', {
  validate: (expected, answer) => {
    const isEmail = answer.indexOf('@') > 0;
    return isEmail === expected;
  },
  warning: 'A friendly error message',
});

You can also define an asynchronous validation

bot.validators.define('external-dep', {
  validate: async (externalAPI, answer) => {
    return fetch(externalAPI).then(result => (answer === result));
  },
  warning: 'A friendly error message',
});

Usage

- message: Your e-mail
  validators:
    - email: true