docs: webhook post data

mission-control/docs/playbooks/webhooks.md

@@ -4,10 +4,9 @@ sidebar_position: 4
 ---
 
 Playbooks can also be triggered via webhooks. When a webhook is configured, mission-control listens on the specified endpoint and any calls to the endpoint triggers the playbook.
-By default, the webhook calls are not protected via authentication. However, there are various authentication methods available.
 
 ```
-/webhook/<webhook-path>
+POST /webhook/<webhook-path>
 ```
 
 ```yaml title="webhook-trigger.yaml"
@@ -17,23 +16,66 @@ metadata:
   name: create-file-on-webhook
 spec:
   description: Create a file specified by the webhook
-  components:
-    - type: KubernetesCluster
   'on':
     webhook:
+      // highlight-next-line
       path: my-webhook
       authentication:
         basic:
           username:
             value: my-username
           password:
             value: my-password
-  parameters:
-    - name: path
-      label: Absolute path of the file to create
   actions:
     - name: Create the file
       exec:
-        script: touch {{.params.path}}
+        script: echo '{{.request.content}}' > '{{.request.params.path}}'
 ```
 
+:::note
+A webhook playbook doesn't accept any parameters and resources unlike a regular playbook.
+:::
+
+## Authentication
+
+By default, the webhook calls are not protected via authentication. However, there are various authentication methods available as listed below.
+
+- [Basic Auth](../reference/playbooks/webhooks.md#basic)
+- [GitHub](../reference/playbooks/webhooks.md#github)
+- [Svix](../reference/playbooks/webhooks.md#svix)
+- [JWT](../reference/playbooks/webhooks.md#jwt)
+
+## Webhook Data
+
+The following details of a webhook request is available on the playbook under `request`.
+
+<Fields
+  rows={[
+    {
+      field: 'url',
+      description: `Endpoint of the webhook. Example \`/playbook/webhook/my-webhook\``,
+      scheme: 'string'
+    },
+    {
+      field: 'headers',
+      description: `Headers sent on the webhook request`,
+      scheme: '`map[string]string`'
+    },
+    {
+      field: 'params',
+      description: `Query parameters sent on the webhook request`,
+      scheme: '`map[string]string`'
+    },
+    {
+      field: 'content',
+      description: `Content sent on the webhook request`,
+      scheme: 'string'
+    },
+    {
+      field: 'json',
+      description: `JSON content if the webhook content is JSON`,
+      scheme: '`map[string]any`',
+    }
+  ]}
+/>
+