unable to api call to AIS server in JDE 9.1 using Nodejs

I am using Node.js with express and router package to make the token request initially.

Steps:

1. I make the api call the following way. Ajax call on client side which sends the request server side node and on server side, using request npm package to hit the AIS server with the token request

2. I get the token back successfully

3. I send the response using res.json(response) from server side node to client side, where in the same ajax call i made earlier with the returned data i am sending the token back to server side node to hit the specific api route (see below for how client side looks like)