this.routeParam.queryParams
  .subscribe(params => {
    let code = params['id_token'];
    console.log('code val >> ', code);
  })

getURLVars(key) {
var vars = [], hash;
var hashes = window.location.href.slice(window.location.href.indexOf('#') + 1).split('&');
for (var i = 0; i < hashes.length; i++) {
  hash = hashes[i].split('=');
  vars.push(hash[0]);
  vars[hash[0]] = hash[1];
}
return vars[key];