Webhooks for Custom integrations

Hi Mac, I realize its been a year+ now but wanted to make sure you saw that Klaviyo released what you’re asking for, I think. Its the ability to add a webhook event to a Flow - ie: trigger events in other applications when a flow is triggered. https://developers.klaviyo.com/en/docs/how_to_add_a_webhook_action_to_a_flow

For our use case, we provide merchants with targeted signup forms then send the leads to Klaviyo. We need to be alerted when a pending subscriber clicks the email confirmation link (a.k.a. the “Subscribed to List” trigger) so we can mark that signup as complete and close the loop. A webhook seems like the most logical way to accomplish this.

I wish there were webhook topic APIs we could use to list active webhooks and activate new ones programmatically.

I’d imagine creating a new one would go something like:

curl --request POST \
     --url https://a.klaviyo.com/api/webhooks \
     --header 'Authorization: Klaviyo-API-Key your-private-api-key' \
     --header 'accept: application/json' \
     --header 'content-type: application/json' \
     --data '
{
  "data": {
    "topic": "list/subscribe",
    "url": "https://api.popsmash.com/klaviyo/webhooks"
  }
}
'

 Then be able to see all active webhooks:

curl --request GET \
     --url https://a.klaviyo.com/api/webhooks \
     --header 'Authorization: Klaviyo-API-Key your-private-api-key' \
     --header 'accept: application/json'

== RESPONSE ==

{
  "data": [
    {
      "created": "2023-03-01T23:41:59.476719+00:00",
      "id": "31GTFRVPS27YXTJ7P72HNQD463",
      "topic": "checkout/started",
      "url": "https://hooks.zapier.com/hooks/9203917..."
    },
    {
      "created": "2023-03-01T23:45:48.673312+00:00",
      "id": "01GT27P72H7YXTJNQD463FRVPS",
      "topic": "order/created",
      "url": "https://hooks.zapier.com/hooks/9028364..."
    },
    {
      "created": "2023-03-01T23:48:12.788878+00:00",
      "id": "71GTHNQD463FRVPS2P727YXTJ7",
      "topic": "list/subscribe",
      "url": "https://api.popsmash.com/klaviyo/webhooks"
    }
  ]
}

And of course, be able to delete when done:

curl --request DELETE \
     --url https://a.klaviyo.com/api/webhooks/71GTHNQD463FRVPS2P727YXTJ7 \
     --header 'Authorization: Klaviyo-API-Key your-private-api-key' \
     --header 'accept: application/json'

Hi @popsmash!

That is an interesting use case - I’ll definitely forward this to our Product Team to see if there are any plans to allow for this functionality in the future.

Thanks,

Brian