Need to make a HMAC-SHA256

You can use the plugin ToolBox. It’s got a workflow action called ‘Server script’, with which you can use Node.js’s built-in modules ‘crypto’ and ‘buffers’:

var crypto = require('crypto')
  , text = 'I love cupcakes'
  , key = 'abcdeghi'
  , hash;

var hash = crypto.createHmac('sha256', key).update(text).digest('hex');
3 Likes