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fix: auto-inject webhookId on webhook nodes during create/update (#643) (#657)

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n8n 2.10+ requires webhookId (UUID) on webhook-type nodes for proper
webhook URL registration. Without it, webhooks silently fail with 404.
The n8n UI always generates webhookId but programmatic creation via
n8n-mcp did not.

Add ensureWebhookIds() helper that injects crypto.randomUUID() on
webhook, webhookTrigger, formTrigger, and chatTrigger nodes when
webhookId is missing. Called from both cleanWorkflowForCreate() and
cleanWorkflowForUpdate(). Existing webhookId values are preserved.

Conceived by Romuald Członkowski - https://www.aiadvisors.pl/en

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
This commit is contained in:
Romuald Członkowski
2026-03-22 23:20:34 +01:00
committed by GitHub
parent 93816fce30
commit 1f0738e637
8 changed files with 139 additions and 5 deletions
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package.json
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@@ -1,6 +1,6 @@
{
"name": "n8n-mcp",
"version": "2.40.4",
"version": "2.40.5",
"description": "Integration between n8n workflow automation and Model Context Protocol (MCP)",
"main": "dist/index.js",
"types": "dist/index.d.ts",