Shopify Hmac generation In Postman.

gistfile1.txt

//This script is placed in the Pre-request Script.
// Setup two environment variables: "secret" and "hmac"
// replace the secret key from Shopify. and use {{hmac}} as the value in the header.


var secret = pm.environment.get('secret');
var body = request.data;
var hmac = CryptoJS.HmacSHA256(body, secret);
hmac = CryptoJS.enc.Base64.stringify(hmac);

console.log("body: " + body);
console.log("secret: " + secret);
console.log("hmac: " + hmac);

postman.setEnvironmentVariable("hmac", hmac);