Max Kotliar

I'd :+1: in general, I was also thinking of expiration https://github.com/Payum/Payum/issues/76. I am not sure about `maxUsage`. How sets this field, the token factory? but it may vary.

> These changes remove some boilerplate code in token handling applications (for example in the controllers in the payum bundle) could you clarify it a bit more?

Kind of Offtopic: I am also think that when we call `invalidate($token)` it must not be delete, just marked as invalid or used, so we can revert the change. for...

Use existing transports as an example.

> Does it mean that pheanstalk is not part of enqueue? As far as I understand XYZDriver.php is kind of registrator for XYZ transport > Do I need to add...

There is an example as go test. https://github.com/makasim/amqpextra/blob/e05133a03cfac19fe5bb849de98e5da9381832c4/e2e_test/publisher_test.go#L82

PR is welcome

the solution could be: ``` if (is_callable(array($e, "getPrevious"))) { $count = 1; while ($previous = $e->getPrevious()) { $message->addSection("Previous Exception #{$count}", $this->notifier()->helper()->formatException($previous)); $e = $previous; $count++; } } ```

The sandox was created to manually test various things before a release. The mongodb is one of those things.

I'd suggest using a docker-compose.yml which is in the project. You'll get a working sandbox without setting anything at all.