Mondo transaction webhook to Pebble Timeline integration

index.js

var validate = require('@smallwins/validate')
var lambda = require('@smallwins/lambda')
var Timeline = require('pebble-api').Timeline

function valid (event, callback) {
  var schema = {
    'query': { required: true, type: Object },
    'query.token': { required: true, type: String },
    'body': { required: true, type: Object },
    'body.data': { required: true, type: Object },
    'body.data.amount': { required: true, type: Number },
    'body.data.created': { required: true, type: String },
    'body.data.currency': { required: true, type: String },
    'body.data.description': { required: true, type: String },
    'body.data.id': { required: true, type: String },
    'body.data.notes': { required: true, type: String }
  }
  validate(event, schema, callback)
}

var backgroundColorMap = {
  'transport': 'islamicgreen',
  'groceries': 'yellow',
  'eating_out': 'red',
  'cash': 'mintgreen',
  'bills': 'pictonblue',
  'entertainment': 'chromeyellow',
  'shopping': 'melon',
  'holiday': 'vividviolet',
  'general': 'lightgray',
  'expenses': 'brass'
};

function fn (event, callback) {
  var timeline = new Timeline()
  var pin = new Timeline.Pin({
    id: event.body.data.id,
    time: new Date(event.body.data.created),
    layout: {
      type: Timeline.Pin.LayoutType.GENERIC_PIN,
      tinyIcon: Timeline.Pin.Icon.NOTIFICATION_FLAG,
      backgroundColor: backgroundColorMap[event.body.data.category || 'general'],
      title: event.body.data.description,
      subtitle: event.body.data.currency + ' ' + (-event.body.data.amount / 100).toFixed(2),
      body: event.body.data.notes || '<no notes>'
    }
  })
  timeline.sendUserPin(event.query.token, pin, function (err) {
    callback(err, event)
  })
}

exports.handler = lambda(valid, fn)