create_ticket.rb

ticket = DeskApi.cases.create({
  external_id: 123456,
  subject: 'Subject',
  description: 'Description',
  priority: 1,
  status: 'resolved',
  type: 'email',
  labels: ['Label 1', 'Label 2'],
  custom_fields: {
    my_key: 'My Value'
  },
  message: {
    direction: 'in',
    from: 'Customer <john@example.com>',
    to: 'Support <support@example.com>',
    subject: 'Subject',
    status: 'received',
    body: 'Some body',
    created_at: '2014-07-14T13:06:19-07:00',
    updated_at: '2014-07-14T13:06:19-07:00'
  },
  _links: {
    assigned_user: { href: '/api/v2/users/123456' },
    assigned_group: { href: '/api/v2/groups/123456' },
    customer: { href: '/api/v2/customers/123456' }
  },
  created_at: '2014-07-14T13:06:19-07:00',
  updated_at: '2014-07-14T13:06:19-07:00'
})

ticket.replies.create({
  direction: 'out',
  to: 'Customer <john@example.com>',
  from: 'Support <support@example.com>',
  subject: 'Subject',
  status: 'sent',
  body: 'Some body',
  created_at: '2014-07-14T13:06:19-07:00',
  updated_at: '2014-07-14T13:06:19-07:00'
})

ticket.notes.create({
  body: 'Some note'
})