search not working

[piyushgarg]

var https = require('follow-redirects').https;
var fs = require('fs');

var options = {
  'method': 'GET',
  'hostname': 'search5-noneu.truecaller.com',
  'path': '/v2/search?countryCode=IN&type=4&placement=SEARCHRESULTS,HISTORY,DETAILS&encoding=json&q=+91xxxxxxxxxx',
  'headers': {
    'Content-Type': 'application/json; charset=UTF-8',
    'User-Agent': 'Truecaller/14.1.6 (Android;14)',
    'Authorization': 'Bearer a2i9P--mK24dz-5-e-Mbhu0GFhbShT11wvf7ivkiGWI_t7uA3oAe1LYWD7ESinO8'
  },
  'maxRedirects': 20
};

var req = https.request(options, function (res) {
  var chunks = [];

  res.on("data", function (chunk) {
    chunks.push(chunk);
  });

  res.on("end", function (chunk) {
    var body = Buffer.concat(chunks);
    console.log(body.toString());
  });

  res.on("error", function (error) {
    console.error(error);
  });
});

req.end();

Response
{
"status": 42601,
"message": "Client must be upgraded"
}