Detect and Report Workflow Rewiring Issues
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Identifies workflows potentially affected by a n8n version upgrade rewiring issue and provides a report.
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About This Workflow
Overview
This workflow is designed to help users identify and report workflows that might have been affected by a rewiring issue introduced in n8n version 0.214.3. This issue specifically impacted nodes with multiple outputs (e.g., If, Switch, Compare Datasets) causing them to be re-wired incorrectly. The workflow fetches all workflows, parses them to detect potential issues, and generates an HTML report accessible via a webhook.
Key Features
- Fetches all active workflows from the n8n instance.
- Analyzes node connections to identify potentially misconfigured multi-output nodes.
- Customizable list of multi-output nodes to check.
- Generates an HTML report listing affected workflows and their problematic nodes.
- Provides direct links to inspect affected workflows.
How To Use
- Configure Credentials: Set up an "n8n account" credential for the "Get all workflows" node to access your n8n instance's API.
- Define Multi-Output Nodes: In the "Parse potentially affected workflows" code node, update the
MULTI_OUTPUT_NODESarray if you are using community nodes with multiple outputs. Add their type and expected number of outputs. - Activate Workflow: Enable the workflow.
- Access Report: Navigate to
{YOUR_INSTANCE_URL}/webhooks/affected-workflowsin your browser. The report will list potentially affected workflows and nodes. - Verify: Inspect each reported workflow manually to ensure the correct outbound connectors are utilized.
Apps Used
Workflow JSON
{
"id": "82c4f5b3-e7d6-4e32-846b-54197b79248d",
"name": "Detect and Report Workflow Rewiring Issues",
"nodes": 0,
"category": "Automation Debugging",
"status": "active",
"version": "1.0.0"
}Note: This is a sample preview. The full workflow JSON contains node configurations, credentials placeholders, and execution logic.
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ID: 82c4f5b3-e7d6...
About the Author
DevOps_Master_X
Infrastructure Expert
Specializing in CI/CD pipelines, Docker, and Kubernetes automations.
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