Error handling, or hook on error #5
Description
Hi.
There's no way for caller of #post to know the request to Slack succeeded or not, and I want to catch the failure (and do retry).
Currently, when posting to Slack failed, this module outputs some warning messages to console using Carp::carp.
https://github.com/masasuzu/p5-WebService-Slack-IncomingWebHook/blob/master/lib/WebService/Slack/IncomingWebHook.pm#L37-L39
But there's no way to tell caller the failure, therefore we cannot implement error handling.
So I'd like to request some features so that the caller can catch the failure.
For example, if #post returns $res, which is a Furl::Response and contains HTTP response informations, caller can handle failures.
Do you have any idea? and/or Would you accept Pull Requests to implement them? (If you accept, I'm willing to implement and open a pull request for them.)