Postman - CC Request Header

CCrequestheader.js

var crypto = require('crypto-js');
let requestTime = Date.now();

let key = "{{APIKEY}}";
let secret = "{{SECRETKEY}}";

let domain = "{{DOMAIN}}";

let hmacDigest = crypto.enc.Hex.stringify(crypto.HmacSHA256(domain, crypto.HmacSHA256(requestTime.toString(), secret)));
let authorizationHeader =`HMAC-SHA256, Credential=${key}, SignedHeaders=host;x-date, Signature=${hmacDigest}`;

console.log(hmacDigest);

pm.environment.set("authorizationHeader", authorizationHeader);
pm.environment.set("timeNow", requestTime);