Delete

curl -X DELETE -H "X-ACCESS-TOKEN: YOUR_ACCESS_TOKEN" -d "id=B7OxpT5ji53wLuR2" "https://api.yumpu.com/2.0/account/subscription.json"

require_once('../yumpu.php');
$yumpu = new Yumpu();
$id = 'B7OxpT5ji53wLuR2';
$deleteSubscription = $yumpu->deleteSubscription($id);
print_r($deleteSubscription);

var yumpu = require('yumpu');
yumpu.setToken('yourToken');
var parameters = {
  id: 'B7OxpT5ji53wLuR2'
};
yumpu.deleteSubscription(parameters, function(statusCode, document){
   console.log('Status: ' + statusCode);
   console.log(document);
});

Yumpu y = new Yumpu("your access token");
String id = "B7OxpT5ji53wLuR2";
System.out.println(y.deleteSubscription(id));