clover-device-list.js

const configuration = {
  domain: 'https://clover.com/',
  merchantId: 'private',
  oauthToken: 'private'
};

const devicesUrl = configuration.domain +
  "v3/merchants/" + configuration.merchantId +
  "/devices?access_token=" + configuration.oauthToken;

$.ajax({
  url: devicesUrl,
  cache: false,
  dataType: 'json',
  crossDomain: true,
  contentType: 'application/json; charset=utf-8',
  success: function(devices) {
    console.log('Populate devices select list...');
  },
  error: function(xhr, status, err) {
    console.log('Handle error...');
  }
});