title: SHA256 encoding in javascript
body: <p>I am struggling with SHA256 encoding.</p>
  
  <p>There is a Python example but I don't understand it quite well.
  Example (Python):</p>
  
  <pre><code>message = nonce + client_id + api_key
  signature = hmac.new(API_SECRET, msg=message, digestmod=hashlib.sha256).hexdigest().upper()
  </code></pre>
  
  <p>Can somebody make a simple blueprint so I can work from there?</p>