I'm planning to use the webhook feature for sending notifications on new article release for users. I could not find the way to grab the published content's ID. Any pointers?
I think I figured it out. The Webhooks do not specify what has changed, just that something has changed.
After you receive a webhook you can query your documents by publication date (first_publication_date and last_publication_date ) and use the date.after predicate to get documents that have been published or changed since the previous time you received a webhook. With GraphQL you can use firstPublicationDate_after and lastPublicationDate_after arguments to query after a given date and time.
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Thank you! Hope Prismic will add it on the webhook.
This is being tracked as an open feature request.
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Just an update for everyone, we are currently working on this feature and will update you with the progress of this feature here 
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