public void init(ServletConfig servletConfig) throws ServletException {
// ##Load Configuration
// Load SDK configuration for
// the resource. This intialization code can be
// done as Init Servlet.
InputStream is = VoidAuthorizationServlet.class.getResourceAsStream("/sdk_config.properties");
try {
PayPalResource.initConfig(is);
} catch (PayPalRESTException e) {
LOGGER.fatal(e.getMessage());
}
}
// ##VoidAuthorization
// Sample showing how to void an Authorization
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
// ###AccessToken
// Retrieve the access token from
// OAuthTokenCredential by passing in
// ClientID and ClientSecret
APIContext apiContext = null;
String accessToken = null;
try {
accessToken = GenerateAccessToken.getAccessToken();
// ### Api Context
// Pass in a `ApiContext` object to authenticate
// the call and to send a unique request id
// (that ensures idempotency). The SDK generates
// a request id if you do not pass one explicitly.
apiContext = new APIContext(accessToken);
// Use this variant if you want to pass in a request id
// that is meaningful in your application, ideally
// a order id.
/*
* String requestId = Long.toString(System.nanoTime(); APIContext
* apiContext = new APIContext(accessToken, requestId ));
*/
// ###Authorization
// Retrieve a Authorization object
// by making a Payment with intent
// as 'authorize'
Authorization authorization = getAuthorization(apiContext);
// Void an Authorization
// by POSTing to
// URI v1/payments/authorization/{authorization_id}/void
Authorization returnAuthorization = authorization.doVoid(apiContext);
req.setAttribute("response", Authorization.getLastResponse());
LOGGER.info(
"Authorization id = "
+ returnAuthorization.getId()
+ " and status = "
+ returnAuthorization.getState());
} catch (PayPalRESTException e) {
req.setAttribute("error", e.getMessage());
}
req.getRequestDispatcher("response.jsp").forward(req, resp);
}