Here is an example that pulls from the incident table.   I typically use axios instead of request for various reasons. There is also an API explorer to help you form your requests in a better way.

import axios from 'axios';

axios.get(

      'https://{your instance}.service-now.com/api/now/v2/table/incident?sysparm_limit=1',

      {headers:{"Accept":"application/json","Content-Type":"application/json","Authorization": ("Basic " + new Buffer("admin:{your password}").toString('base64'))}}

).then((data)=>{

      console.log("Your Data",data)

}).catch((e)=>{

      console.log("error",e.toString());

});