// create the feed file
File batchfile = feed.createTempFile();
feed.writeCSVFile(batchfile);
// submit the feed file to the playtrade API
CatalogUploadAddModifyDeleteCall call = new CatalogUploadAddModifyDeleteCall();
call.setUsername("user@email.com");
call.setPassword("password");
call.setBatchfile(batchfile);
call.callCatalogUploadAddModifyDelete();
}