firebase instructions

* Database (Firestore)
* Authentication
* Functions
  * Triggers


Registrando objetos com AngularFire2 - See docs


Estrutura do banco
{
  channels: {
    1: {
      title: 'blabla'
    }
  },
  messages: {
    1: {
      channelId: 1,
      message: 'ola'
    }
  }
}


Listando mensagens com AngularFire2 - See docs
db.collection('/messages').where('channelId', 1)


Triggers
  https://firebase.google.com/docs/functions/firestore-events

  Exemplo push notification
  onCreate('messages/{id}', () => {
    // send push
  })

  Exemplo update last message
  onCreate('messages/{id}', () => {
    // update last message
  })