pwc-example-authentication-node.js

var PayWithCapture = require('PayWithCapture');

var clientId = "636yertryrury", //your client id is in PwC devcenter
    clientSecret = "76474hrhryre7437433yg3y3uy3yugregregr37464t4g45"; //your client secret in in Pwc devcenter account
    
var client = new PayWithCapture(clientId, clientSecret, "staging");
var Authentication = client.getAuthenticationClient();

new Authentication().authenticate()
  .then(function(authResp) {
    //do what ever you need with the authResp
    //you can do JSON.stringify to inspect the object
  });