@shopify/shopify-api/test-helpers/get-hmac.ts

Shopify API Library for Node - accelerate development with support for authentication, graphql proxy, webhooks

import crypto from 'crypto';

export function getHmac(body: string, apiSecretKey: string): string {
  return crypto
    .createHmac('sha256', apiSecretKey)
    .update(body, 'utf8')
    .digest('base64');
}