List of web-hook’s response statuses

Shifter’s web-hook standards with HTTP response status code
Here are well-known statuses and their means.

• 20x: Success. No retry.
• 30x: Follow redirect once, if it gets 30x response again, mark it fails. No retry.
• 40x: Fail. No retry.
• 50x: Fail. Try to resend.
• Connection error: Try to resend.

Maximum counts of retries are 5 times.
Session time out is 5 seconds.