Guide to manually verify webhook signatures without libraries
webhook-id
will remain the same.
id
, timestamp
, and payload
(raw body of the request) with a .
character between them:
whsec_
prefix.
signedContent
.
webhook-signature
values.
webhook-signature
header often looks like this:
v1,
. To verify, remove the prefix (e.g., v1,
) and compare the remaining Base64 string to your computed signature.
webhook-timestamp
header includes the timestamp of the attempt. Make sure this timestamp is close to your current time (within a certain allowed skew, like a few minutes) to prevent replay attacks.