callbackUrl:
URL -
URL where the webhook subscription should send the POST request when the event occurs.
filter:
String -
A constraint specified using search syntax that ensures only webhooks that match the specified filter are emitted. See our [guide on filters](https://shopify.dev/docs/apps/build/webhooks/customize/filters) for more details.
format:
WebhookSubscriptionFormat -
The format in which the webhook subscription should send the data.
includeFields:
String -
The list of fields to be included in the webhook subscription.
metafieldNamespaces:
String -
The list of namespaces for any metafields that should be included in the webhook subscription.