Beachten Sie, dass Sie bei Webhooks tatsächlich keinen *Pfad* (wie `/items/`) deklarieren, sondern dass der Text, den Sie dort übergeben, lediglich eine **Kennzeichnung** des Webhooks (der Name des Events) ist. Zum Beispiel ist in `@app.webhooks.post("new-subscription")` der Webhook-Name `new-subscription`.

```Python hl_lines="9-13  36-53"
{!../../../docs_src/openapi_webhooks/tutorial001.py!}
```

The webhooks that you define will end up in the **OpenAPI** schema and the automatic **docs UI**.

!!! info
    The `app.webhooks` object is actually just an `APIRouter`, the same type you would use when structuring your app with multiple files.

		return fmt.Errorf("expected a single webhook for default revision")
	}
	webhook := whs[0]
	for i := range webhook.Webhooks {
		wh := webhook.Webhooks[i]
		// this is an abomination, but if this isn't a per-revision webhook, we want to make it ineffectual
		// without deleting it. Add a nonsense match.
		wh.NamespaceSelector = util.NeverMatch
		wh.ObjectSelector = util.NeverMatch
		webhook.Webhooks[i] = wh
	}

    - pods
    scope: '*'
  sideEffects: None
  timeoutSeconds: 10
---
# same webhook but with different name, will result in a duplicate
apiVersion: admissionregistration.k8s.io/v1
kind: MutatingWebhookConfiguration
metadata:
  labels:
    app: sidecar-injector
    istio.io/tag: default
  name: w2-istio-sidecar-injector-istio-system

webhooks:
- admissionReviewVersions:
  - v1beta1
  - v1
  clientConfig:
    service:

        sendToGoogleChat(cardView, discloser);
    }

    protected void sendToSlack(final CardView cardView, final SMailPostingDiscloser discloser) {
        // https://api.slack.com/messaging/webhooks#posting_with_webhooks
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        final String slackWebhookUrls = fessConfig.getSlackWebhookUrls();
        if (StringUtil.isBlank(slackWebhookUrls)) {
            return;

        resources:
          - "*"
    {{- if .Values.base.validationCABundle }}
    # Disable webhook controller in Pilot to stop patching it
    failurePolicy: Fail
    {{- else }}
    # Fail open until the validation webhook is ready. The webhook controller
    # will update this to `Fail` and patch in the `caBundle` when the webhook
    # endpoint is ready.
    failurePolicy: Ignore
    {{- end }}
    sideEffects: None

		row.Cells = append(row.Cells, table.NewCell(wa.Reason))
		return row
	})
	w.AddHeader("WEBHOOK", "REVISION", "INJECTED", "REASON")
	injectedTotal := 0
	for _, ws := range was {
		if ws.Injected {
			injectedTotal++
		}
		w.AddRow(ws)
	}
	w.Flush()
	if injectedTotal > 1 {
		fmt.Fprintf(writer, "ERROR: multiple webhooks will inject, which can lead to errors")
	}
	return nil
}

apiVersion: admissionregistration.k8s.io/v1
kind: MutatingWebhookConfiguration
metadata:
  labels:
    app: sidecar-injector
  name: w-istio-sidecar-injector-istio-system

webhooks:
- admissionReviewVersions:
  - v1beta1
  - v1
  clientConfig:
    service:
      name: istiod
      namespace: istio-system
      path: /inject
      port: 443
  failurePolicy: Fail

        resources:
          - "*"
    {{- if .Values.base.validationCABundle }}
    # Disable webhook controller in Pilot to stop patching it
    failurePolicy: Fail
    {{- else }}
    # Fail open until the validation webhook is ready. The webhook controller
    # will update this to `Fail` and patch in the `caBundle` when the webhook
    # endpoint is ready.
    failurePolicy: Ignore
    {{- end }}
    sideEffects: None

    install.operator.istio.io/owning-resource: {{ .Values.ownerName | default "unknown" }}
    operator.istio.io/component: "Pilot"
    app: sidecar-injector
    release: {{ .Release.Name }}
webhooks:
{{- /* Set up the selectors. First section is for revision, rest is for "default" revision */}}

{{- /* Case 1: namespace selector matches, and object doesn't disable */}}