> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://developer.icepanel.io/api-reference/webhook-events/on-diagram/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://developer.icepanel.io/_mcp/server.

# Diagram

POST 

Webhook event triggered when a diagram was modified

Reference: https://developer.icepanel.io/api-reference/webhook-events/on-diagram

## Request

### Payload

- `collection` (enum, required)
  - Allowed values: `diagram`
- `operation` (enum, required)
  - Allowed values: `created`, `updated`, `deleted`
- `organizationId` (string, required)
- `resourceId` (string, required)
- `subscriptionId` (string, required)
- `after` (WebhooksOnDiagramPayloadContentApplicationJsonSchemaAfter, optional)
- `before` (WebhooksOnDiagramPayloadContentApplicationJsonSchemaBefore, optional)

## Types

### WebhooksOnDiagramPayloadContentApplicationJsonSchemaAfter

- `id` (string, required)
- `landscapeId` (string, optional)
- `versionId` (string, optional)

### WebhooksOnDiagramPayloadContentApplicationJsonSchemaBefore

- `id` (string, required)
- `landscapeId` (string, optional)
- `versionId` (string, optional)