How to verify buyer with Web Payments SDK?

Questions
1

When I don’t need to verify the buyer this works great. But I don’t understand how to add the verify buyer function. Can anyone complete the below to include verify buyer function please, so that I can send the verification token and payment token to the api.

<head>
  
  	<title>HTML Button Generator</title>
	<style>
		button {
			color: #003012;
			background-color: #ffffff;
			font-size: 19px;
			font-family: georgia;
			border: 3px solid #efa817;
			border-radius: 50px;
			padding: 15px 50px;
			cursor: pointer;
          	
		}
		button:hover {
			color: #003012;
			background-color: #efa817;
		}
	</style>
  
  
  
  <link rel="stylesheet" href="/reference/sdks/web/static/styles/code-preview.css" preload>
  <script src="https://web.squarecdn.com/v1/square.js"></script>
</head>
<body>
<div id="payment-form">
  <div id="payment-status-container"></div>
  <div id="card-container"></div>
  <button id="card-button" type="button">Charge</button>
 
</div>
  <script type="module">
    const payments = Square.payments('redacted', 'redacted');
    const card = await payments.card();
    await card.attach('#card-container');

    const cardButton = document.getElementById('card-button');
    cardButton.addEventListener('click', async () => {
      const statusContainer = document.getElementById('payment-status-container');

      try {
        const result = await card.tokenize();
        if (result.status === 'OK') {
  	                
      //        		window.parent.postMessage(result,"redacted");
    window.parent.postMessage(result,"*");   
               
          statusContainer.innerHTML = "Payment Successful";
        } else {
          let errorMessage = `Tokenization failed with status: ${result.status}`;
             window.parent.postMessage(result.status,"redacted")
          if (result.errors) {
            errorMessage += ` and errors: ${JSON.stringify(
              result.errors
                        )}`;
          }

          throw new Error(errorMessage);
        }
      } catch (e) {
        console.error(e);
        statusContainer.innerHTML = "Payment Failed";
      }
    });
  </script>
</body>
2

Here’s our quickstart which has a working example of verifyBuyer. :slightly_smiling_face: