Exception Handling?

[dustingraham]

Could you address exception handling in the readme?

[vionemc]

Will this library retry the cron job if it fails?
Is there any fault tolerance mechanism?

[lavary]

It won't be retried when there's a failure, but the event runner will log the error or send an email notification (even if there's a parse error in your specified callbacks). You may read about it here.

You can also create a number of PHP callbacks to be called in case of an error - by using onError() method. This is covered here.