2024
https://www.baeldung.com/cs/webhooks-polling-real-time-information
Talented Developer - How to create a webhook from scratch Using SpringBoot | create webhook | webhook tutorial SpringBoot 0:00 of 44:48
    https://www.youtube.com/watch?v=tshKOgRLYn0
2023
https://medium.com/@reetesh043/webhooks-for-beginners-a-simple-guide-to-implementing-webhooks-in-spring-boot-8e7ac3d65356
https://dev.to/jackynote/a-step-by-step-guide-to-implement-webhook-workflows-in-flight-booking-systems-1lpm