Apex Developer Guide

Apex Developer Guide
Getting Started with Apex
Writing Apex
Running Apex
Invoking Apex
Apex Transactions and Governor Limits
Using Salesforce Features with Apex
Actions
Approval Processing
Authentication
Chatter Answers and Ideas
Use Cases for the CommercePayments Namespace
Payment Gateway Adapters
Process Payments
Process Refund
Idempotency Guidelines
Sample Payment Gateway Implementation for CommercePayments
Connect in Apex
Moderate Chatter Private Messages with Triggers
Moderate Feed Items with Triggers
Communities
Email
Metadata
Platform Cache
Salesforce Knowledge
Salesforce Files
Salesforce Connect
Salesforce Reports and Dashboards API via Apex
Salesforce Sites
Support Classes
Territory Management 2.0
Flows
Integration and Apex Utilities
Debugging, Testing, and Deploying Apex
Apex Language Reference
Appendices
Glossary
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Process Refund

Process a refund in the payment gateway.
Available in: Salesforce Spring ’20

To access the commercepayments API, you need the PaymentPlatform org permission.
  1. Get the referenced refund request object from the PaymentGatewayContext Class. 
    1commercepayments.ReferencedRefundRequest = (commercepayments.ReferencedRefundRequest)gatewayContext.getPaymentRequest();
  2. Set the HTTP request object. 
    1HttpRequest req = new HttpRequest();
2req.setHeader('Content-Type', 'application/json');
  3. Read the parameters from the ReferencedRefundRequest object and prepare the HTTP request body.
  4. Make the HTTP call to the gateway using thePaymentsHttp Class. 
    1commercepayments.PaymentsHttp http = new commercepayments.PaymentsHttp();
2HttpResponse res = http.send(req);
  5. Parse the httpResponse and prepare the ReferencedRefundResponse object. 
    1commercepayments.ReferencedRefundResponse referencedRefundResponse = new commercepayments.ReferencedRefundResponse();
2referencedRefundResponse.setGatewayResultCode(“”);
3referencedRefundResponse.setGatewayResultCodeDescription(“”);
4referencedRefundResponse.setGatewayReferenceNumber(“”);
5referencedRefundResponse.setSalesforceResultCodeInfo(getSalesforceResultCodeInfo(commercepayments.SalesforceResultCode.SUCCESS.name())); 
6referencedRefundResponse.setGatewayReferenceDetails(“”);
7referencedRefundResponse.setAmount(double.valueOf(100);
  6. Return the referencedRefundResponse.