# Migration Guide: Transitioning from QR Code to Digital Wallet Ticketing

This guide provides a detailed walkthrough for developers on how to transition from the existing QR code-based ticketing system to the new digital wallet-based ticketing system.

## Overview

In this migration, we will:

1. Remove the QR code generation endpoint.
2. Add and utilize the new endpoint for generating digital wallet tickets compatible with Apple Wallet and Google Pay.


## Step-by-Step Migration

### 1. Remove QR Code Generation

The QR code generation endpoint `/tickets/{ticketId}/qr` will be deprecated and removed from the API. Ensure that your application no longer makes calls to this endpoint and handles the removal gracefully.

### 2. Update API Client

Ensure your API client is updated to no longer reference the deprecated QR code endpoint and instead use the new digital wallet endpoint.

### Example Update:

#### Old API Call (QR Code)


```javascript
// Old endpoint for QR code generation
fetch('https://api.fake-museum-example.com/v1.1/tickets/{ticketId}/qr')
  .then(response => response.blob())
  .then(blob => {
    // Handle QR code image blob
  })
  .catch(error => console.error('Error:', error));
New API Call (Digital Wallet Ticket)
javascript
Copy code
// New endpoint for digital wallet ticket generation
fetch('https://api.fake-museum-example.com/v1.1/tickets/{ticketId}/pkpass')
  .then(response => response.json())
  .then(data => {
    // Handle digital ticket data
    console.log('Digital Ticket:', data);
  })
  .catch(error => console.error('Error:', error));
```

### 3. Integrate Digital Wallet Tickets

The new endpoint /tickets/{ticketId}/pkpass provides a digital ticket compatible with Apple Wallet and Google Pay. Update your application to handle the response from this endpoint and guide users to add their tickets to their digital wallets.

### Example Integration:

**Fetching and Adding Digital Ticket to Wallet:**


```javascript
// Function to add ticket to Apple Wallet or Google Pay
function addTicketToWallet(ticketId) {
  fetch(`https://api.fake-museum-example.com/v1.1/tickets/${ticketId}/pkpass`)
    .then(response => response.json())
    .then(data => {
      const { eventName, ticketDate, ticketId } = data;
      // Logic to add to Apple Wallet or Google Pay
      // Example for Apple Wallet (iOS)
      if (window.AppleWallet) {
        window.AppleWallet.pass({
          eventName,
          ticketDate,
          ticketId
        });
      }
      // Example for Google Pay (Android)
      if (window.GooglePay) {
        window.GooglePay.pass({
          eventName,
          ticketDate,
          ticketId
        });
      }
    })
    .catch(error => console.error('Error:', error));
}
```

### 4. User Experience

Update your user interface to inform users about the new digital wallet ticketing system. Provide clear instructions on how to add tickets to their digital wallets.

**Example User Instructions:**


```html
<div>
  <h2>Your Ticket</h2>
  <p>To add your ticket to Apple Wallet or Google Pay, click the button below:</p>
  <button onclick="addTicketToWallet('your-ticket-id')">Add to Wallet</button>
</div>
```

### 5. Testing

Thoroughly test the new digital wallet ticketing integration to ensure it works seamlessly across different devices and platforms.

**Checklist:**

- Remove references to the QR code endpoint.
- Update API calls to use the new digital wallet endpoint.
- Integrate the logic for adding tickets to Apple Wallet and Google Pay.
- Update the user interface with clear instructions.
- Test the new functionality on iOS and Android devices.


### Conclusion

Migrating to digital wallet ticketing enhances the user experience by providing a secure, convenient, and eco-friendly alternative to traditional ticketing methods. By following this guide, developers can smoothly transition from the QR code system to the new digital wallet-based system.

For further assistance, please refer to our API documentation or contact our support team at support@fake-museum-example.com.