How can i authenticate the webhook? (i,e, with a secret header hash, etc. Any simple example PHP code would be much appreciated)
Is there a way of sending an “OK” response to the webhook, to let it know it was received OK?
And if the response of the “OK” is not received, the webhook will periodically attempt to resend (for x amount of times, etc)
OR does the webhook already check for a header response of 200? as this would be OK too. (i am just trying to plan for the even my servers do not respond)