SOAP API Callbacks and Notifications Examples

Explore practical examples of SOAP API callbacks and notifications to enhance your understanding of API integrations.
By Jamie

Understanding SOAP API Callbacks and Notifications

SOAP (Simple Object Access Protocol) is a protocol used for exchanging structured information in web services. Callbacks and notifications are crucial in enabling real-time communication between applications. Here, we present three practical examples of SOAP API callbacks and notifications that demonstrate their functionality in different contexts.

Example 1: Payment Processing Notification

Context

In e-commerce applications, payment processing is a critical component. When a payment is completed, a notification is sent to the merchant’s system to confirm the transaction.

<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:pay="http://payment.example.com/">
   <soapenv:Header/>
   <soapenv:Body>
      <pay:PaymentNotification>
         <pay:TransactionID>123456789</pay:TransactionID>
         <pay:Amount>49.99</pay:Amount>
         <pay:Currency>USD</pay:Currency>
         <pay:Status>Completed</pay:Status>
      </pay:PaymentNotification>
   </soapenv:Body>
</soapenv:Envelope>

Notes

  • The TransactionID uniquely identifies the transaction.
  • Other statuses can include Pending, Failed, or Refunded.

Example 2: Order Status Update Callback

Context

In supply chain management, businesses often need to update their systems with the latest order statuses. A callback can notify a system when an order status changes.

<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:ord="http://order.example.com/">
   <soapenv:Header/>
   <soapenv:Body>
      <ord:OrderStatusUpdate>
         <ord:OrderID>987654321</ord:OrderID>
         <ord:NewStatus>Shipped</ord:NewStatus>
         <ord:EstimatedDelivery>2023-10-15</ord:EstimatedDelivery>
      </ord:OrderStatusUpdate>
   </soapenv:Body>
</soapenv:Envelope>

Notes

  • The NewStatus can include statuses like Processing, Delivered, or Cancelled.
  • Include timestamps for better tracking of order updates.

Example 3: User Registration Confirmation Notification

Context

In web applications, user registration often requires confirmation. A notification can be sent to the user’s email or system to verify successful registration.

<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:usr="http://user.example.com/">
   <soapenv:Header/>
   <soapenv:Body>
      <usr:UserRegistrationConfirmation>
         <usr:UserID>abc123</usr:UserID>
         <usr:Email>user@example.com</usr:Email>
         <usr:RegistrationDate>2023-10-01</usr:RegistrationDate>
         <usr:Status>Confirmed</usr:Status>
      </usr:UserRegistrationConfirmation>
   </soapenv:Body>
</soapenv:Envelope>

Notes

  • This notification can include links for users to activate their account.
  • Consider adding a ConfirmationCode for additional security.

Through these examples of example of SOAP API callbacks and notifications, you can see how they facilitate real-time updates and enhance the functionality of applications across different industries.