Getting active exception in declaritive post failure routine

[Joshua Harlow]

Hi all, I am trying to do some slack integration whereby in a declarative post failure section we want to send to slack the exception message that triggered the failure.

Something like:

pipeline {

   stages {

     ...

   }

   post {

      failure {

          slackSend(message: "Failed due to ${cause.toString()}")

      }

   }

}

What I am noticing is that it seems impossible to get the active exception/failure in a post section. Is there any trick that I am missing?

-Josh