In need of a webhook

[ihrsetrdr]

An online fitness/martial arts coach that I follow has had to change payment gateways(now Patreon) and the whole process for customers accessing content has become a hot mess. She apparently has become aware of the need for a "webhook" to be set up. If any here is proficient in designing/implementing a webhook, and would be interested in doing a sidejob, please post or PM me.