profile-botpress.js

bp.hear(), (event, next) => {
  bp.db.kvs.get(event.user.id)
    .then(user => {
      if (!user || user.step === 0) {
         bp.messenger.sendText(event.user.id, 'Hello, what would you like me to call you?');
         return bp.db.kvs.set(event.user.id, defaultUser);
      }
      if (user.step > 2) {
        // already registered user do somethign else here
      }
      switch (user.step) {
        case 1:
           user.nickname = event.text;
           bp.messenger.sendText(event.user.id, `Ok ${user.nickname}, how old are you?`);
           break;
        case 2:
           user.age = parseInt(event.text, 10);
           bp.messenger.sendTemplate(event.user.id, {
             template_type: 'button',
             text: `Ok ${user.nickname}, pick an interest`,
             buttons: [ 
               { type: 'postback', title: 'Business', payload: 'BUSINESS'},
               { type: 'postback', title: 'Politics', payload: 'POLITICS'},
               { type: 'postback', title: 'Sports', payload: 'SPORTS'},
             ]
           });
           break;
      }
      user.step++;
      return bp.db.kvs.set(event.user.id, user);
    })
})

bp.hear({
    type: 'postback',
    text: 'BUSINESS'
  }, (event, next) => {
   bp.messenger.sendText(event.user.id, 'Subscribing you to business news.');
   return bp.db.kvs.set(event.user.id, 'BUSINESS', 'interest');
}):

bp.hear({
    type: 'postback',
    text: 'POLITICS'
  }, (event, next) => {
   bp.messenger.sendText(event.user.id, 'Subscribing you to political news.');
   return bp.db.kvs.set(event.user.id, 'POLITICS', 'interest');
}):

bp.hear({
    type: 'postback',
    text: 'SPORTS'
  }, (event, next) => {
   bp.messenger.sendText(event.user.id, 'Subscribing you to sports news.');
   return bp.db.kvs.set(event.user.id, 'SPORTS', 'interest');
}):

const defaultUser = {
  step: 1,
  nickname: null,
  age: 0,
  interest: null,
};