SERVER - Adicionar devices no model de user

[felipe-augusto]

por no model de user:

devices: [{
  phone: 'Iphone 10', // can be extracted from user-agent,
  token: '', // string
  deviceId: '' // string
}]

Criar metodos no user:

Model.addDevice(device => {
    this.devices = _.uniqBy([...this.devices, device], { deviceId: 'deviceId' })
})

Model.removeDevice(device => {
    this.devices = _.removeBy(this.devices,  { deviceId: 'deviceId' })
})

Model.sendNotification(title, message) {
   const tokens = _.map(this.devices, 'token')
   // ver que biblioteca usa e como diabos manda notificação
   fcmWhatever.sendNotification(title, message, tokens)
}

Criar duas rotas:

POST /users/me/devices => Model.addDevice DELETE /useres/me/devices/deviceID => Model.removeDevice

chamar o .save() retornar this.devices