const request = require('request');

const options = {
  url: 'https://ln....api.infobip.com/sms/2/text/single',
  json: {
    from: 'Infobip',
    to: '5573991626817',
    text: 'Teste'
},
  headers: {
    'Authorization': 'App ca8c0e09e3ad4058f5b462e...',
    'Content-Type': 'application/json',
    'Accept': 'application/json'
  }
}

request.post(options,(err, response) => {
  if (err){
    return console.log(err)
  }

  console.log(`Status code: ${response.statusCode}. Message: ${response.body}`);
});