Call to WC DIscovery API nodeJS

wcdAPIExampleNodeJS.js

var WSKey = require('oclc-wskey')
const axios = require("axios");
var https = require('https')
var url = require('url')
var me = { principalID: 'principalID', principalIDNS: 'principalIDNS' }
var key = new WSKey('key', 'secret', me)

var request_url = 'https://authn.sd00.worldcat.org/oauth2/accessToken?grant_type=client_credentials&authenticatingInstitutionId=128807&contextInstitutionId=128807&scope=WorldCatDiscoveryAPI';
var authorization = key.HMACSignature('POST', request_url)
var config = {
  headers: {
	  'Authorization': authorization,
	  'Accept': 'application/json'
  }
};


axios.post(request_url, null, config)
  .then(response => {
	console.log(response.data);  
    console.log(response.data.access_token);
    var headers = {
  	  'Authorization': 'Bearer ' + response.data.access_token,
  	  'Accept': 'application/json'
    }
    axios.get('https://beta.worldcat.org/discovery/bib/data/41266045', {headers})
    	.then(response =>{
    		var graph = response.data['@graph'][0]
    		var bib = graph['schema:about']
    		console.log(bib['schema:name']['@value'])
    	})
    	.catch (error => {
    		console.log(error.response.status);
    		console.log(error.response.data);
    	})
  })
  .catch(error => {
    console.log(error.request.method);
	console.log(error.request.path);
	console.log(error.response.status);
    console.log(error.response.data);
  });