Access URL Parameters for webhook criteria

[0xliam]

Hi there,

Is it possible to access URL parameters from within a webhook?

A service we're trying to integrate into a Stackstorm action sends us JSON data, and also adds some important data as URL parameters.

We'd like to use those URL parameters to form part of the criteria for whether an action should run, but I've not been able to find if it's at all possible to access URL parameters in a webhook - I'm assuming it's not, but thought I would post here in case anyone has any suggestions.