Webhook

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://raw.githubusercontent.com/api-evangelist/customer-io/main/json-schema/customer-io-update-webhook-content-schema.json",
  "title": "Webhook",
  "description": "Update the contents of a webhook newsletter variant.",
  "x-generated": "2026-10-12",
  "x-method": "derived",
  "x-generator": "derive-json-schema.py",
  "x-source": "openapi/customer-io-newsletter-variants-api-openapi.yml#/components/schemas/updateWebhookContent",
  "allOf": [
    {
      "type": "object",
      "properties": {
        "type": {
          "x-scalar-ignore": true,
          "description": "Channel type for a newsletter or newsletter content variant.",
          "type": "string",
          "enum": [
            "email",
            "webhook",
            "twilio",
            "push",
            "in_app",
            "inbox"
          ],
          "readOnly": true
        },
        "deduplicate_id": {
          "x-scalar-ignore": true,
          "type": "string",
          "readOnly": true,
          "description": "An identifier in the format `id:timestamp` where the id is for the object you're working with (Campaigns, Deliveries, Exports, Identities, Newsletters, Segments, and Templates), and the timestamp is the last time the object was updated."
        }
      }
    },
    {
      "type": "object",
      "properties": {
        "type": {
          "type": "string",
          "enum": [
            "webhook"
          ],
          "readOnly": true
        },
        "body": {
          "type": "string",
          "description": "The body content of the webhook request."
        },
        "headers": {
          "x-scalar-ignore": true,
          "description": "Headers you want to add or update. Names and values must be strings, with no non-ASCII characters or spaces. You can't overwrite reserved headers.",
          "type": "array",
          "items": {
            "type": "object",
            "properties": {
              "name": {
                "type": "string",
                "description": "The name of the header."
              },
              "value": {
                "type": "string",
                "description": "The value of the header."
              }
            }
          }
        }
      }
    }
  ]
}