声の旅

app.get('/webhooks/voice/answer', (request, response) => {
  console.log('answer: ', request.query)

  const ncco = [{
    action: 'talk',
    text: 'Thank you for calling Example Inc.! Press 1 to talk to the sales department, press 2 to get technical support.',
    bargeIn: true
  },
    {
      action: 'input',
      eventUrl: [
        `${request.protocol}://${request.get('host')}/webhooks/input`],
      type: [ 'dtmf' ],
      dtmf: {
        maxDigits: 1
      }
    }
  ]

  response.json(ncco)
})

app.post('/webhooks/voice/event', (request, response) => {
  console.log('event:', request.body)
  response.sendStatus(200);
})

{
  "speech": {
  },
  "dtmf": {
    "digits": "1",
    "timed_out": true
  },
  "from": USER_NUMBER,
  "to": VONAGE_NUMBER,
  "uuid": "abfd679701d7f810a0a9a44f8e298b33",
  "conversation_uuid": "CON-64e6c8ef-91a9-4a21-b664-b00a1f41340f",
  "timestamp": "2020-04-17T17:31:53.638Z"
}

app.post('/webhooks/input', (request, response) => {
  console.log('input:', request.body)

  // generating unique conversation name
  var conversationName = 'conversation_' + Date.now()

  console.log('conversationName: ', conversationName)

  // selecting agent/department endpoint
  var departmentId = request.body.dtmf.digits
  var department = ''
  var departmentNumber = ''

  switch (departmentId) {
    case '1':
      department = 'Sales'
      departmentNumber = AGENT_NUMBER
      break
    case '2':
      department = 'Support'
      departmentNumber = OTHER_AGENT_NUMBER //you can use the same number for the sample
      break
    default:
      break
  }

  var ncco = ''

  if (department != '') {
      // NCCO for the user leg
    ncco = [{
      action: 'talk',
      text: 'Please wait while we connect you to ' + department
    }, {
      action: 'conversation',
      name: conversationName
    }
    ]

    // creating the agent leg and moving it to the same conversation
    vonage.calls.create({
      to: [
        {
          type: 'phone',
          number: departmentNumber
        }
      ],
      from: {
        type: 'phone',
        number: VONAGE_NUMBER
      },
      ncco: [
        {
          action: 'conversation',
          name: conversationName
        }]

    }, (error, response) => {
      if (error) console.error('outbound error:', error)
      if (response) {
          console.log('outbound ok')
      }
    })
  } else { // something went wrong, fallback route
    ncco = [{
      action: 'talk',
      text: 'Press 1 to talk to the sales department, press 2 to get technical support.',
      bargeIn: true
    }, {
      action: 'input',
      eventUrl: [
        `${request.protocol}://${request.get('host')}/webhooks/input`
      ],
      dtmf: {
        maxDigits: 1
      }
    }]
  }
  
  response.json(ncco)
})  

var userLegId = ''
var agentLegId = ''

app.get('/webhooks/answer', (request, response) => {
  console.log('answer: ', request.query)

  userLegId = request.query.uuid

  console.log('userLegId: ', userLegId)
  

...

app.post('/webhooks/input', (request, response) => {
  console.log('input:', request.body)

    // creating the agent's leg and moving it to the same conversation
    vonage.calls.create({
        ...
    }, (error, response) => {
      if (error) console.error('outbound error:', error)
      if (response) {
        agentLegId = response.uuid
        console.log('agentLegId: ', agentLegId)
      }
    })
  } else ...

app.post('/webhooks/event', (request, response) => {
  console.log('event:', request.body)

  if (request.body.uuid == agentLegId && request.body.status == 'completed') {
    vonage.calls.update(userLegId, {
      action: 'transfer',
      destination: {
        type: 'ncco',
        ncco: [ {
          action: 'talk',
          text: 'Please valuate quality of service by entering a digit, 1 to 5'
        },
        {
          action: 'input',
          type: [ 'dtmf' ],
          dtmf: {
            maxDigits: 1
          },
          eventUrl: [ `${request.protocol}://${request.get('host')}/webhooks/survey` ]
        }
        ]
      }
    }, (err, res) => {
      if (err) {
        console.error('transfer error:', err)
      } else {
        console.log('transfer ok')
      }
    })
  }
  
  response.sendStatus(200)
})

app.post('/webhooks/survey', (request, response) => {
  console.log('survey: ', request.body)

  var phone = request.body.from
  var date = request.body.timestamp
  var score = request.body.dtmf.digits

  console.log('[%s] User %s gave %d', date, phone, score)

  const ncco = [
    {
      action: 'talk',
      text: 'Thank you, good bye.'
    }
  ]

  response.json(ncco)
})

const port = 3000
app.listen(port, () => console.log(`Listening on port ${port}`))

const options = {
  apiHost: 'api-us-1.nexmo.com',
  restHost: 'rest-us-1.nexmo.com'
}

const vonage = new Vonage({
  apiKey: VONAGE_API_KEY,
  apiSecret: VONAGE_API_SECRET
  applicationId: VONAGE_APPLICATION_ID,
  privateKey: VONAGE_APPLICATION_PRIVATE_KEY_PATH
}, options)