This workflow follows the GitHub → HTTP Request recipe pattern — see all workflows that pair these two integrations.
The workflow JSON
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{
"name": "NexusAI - Error Handler & Auto-Fix",
"nodes": [
{
"parameters": {
"httpMethod": "POST",
"path": "nexusai-error",
"responseMode": "responseNode",
"options": {}
},
"id": "webhook-error",
"name": "Webhook - Error Report",
"type": "n8n-nodes-base.webhook",
"typeVersion": 1,
"position": [
250,
300
]
},
{
"parameters": {
"functionCode": "// Extract error details\nconst payload = $input.all()[0].json;\n\nconst error = {\n app_id: payload.app_id || 'unknown',\n user_id: payload.user_id || 'unknown',\n error_type: payload.error_type || 'unknown',\n error_message: payload.error_message || '',\n stack_trace: payload.stack_trace || '',\n file_path: payload.file_path || '',\n line_number: payload.line_number || 0,\n timestamp: payload.timestamp || new Date().toISOString(),\n context: payload.context || {},\n severity: payload.severity || 'error'\n};\n\nreturn [{ json: error }];"
},
"id": "function-error-1",
"name": "Parse Error Details",
"type": "n8n-nodes-base.function",
"typeVersion": 1,
"position": [
450,
300
]
},
{
"parameters": {
"conditions": {
"string": [
{
"value1": "={{$json.severity}}",
"operation": "equals",
"value2": "critical"
}
]
}
},
"id": "if-critical",
"name": "Is Critical?",
"type": "n8n-nodes-base.if",
"typeVersion": 1,
"position": [
650,
300
]
},
{
"parameters": {
"functionCode": "// Format critical alert for PagerDuty/on-call\nconst error = $input.all()[0].json;\n\nconst alert = {\n routing_key: process.env.PAGERDUTY_KEY || '',\n event_action: 'trigger',\n payload: {\n summary: `CRITICAL: ${error.error_type} in ${error.app_id}`,\n severity: 'critical',\n source: 'nexusai',\n component: error.file_path,\n custom_details: {\n app_id: error.app_id,\n user_id: error.user_id,\n error_message: error.error_message,\n stack_trace: error.stack_trace,\n timestamp: error.timestamp\n }\n }\n};\n\nreturn [{ json: { ...error, alert } }];"
},
"id": "function-error-2",
"name": "Create Critical Alert",
"type": "n8n-nodes-base.function",
"typeVersion": 1,
"position": [
850,
200
]
},
{
"parameters": {
"url": "https://events.pagerduty.com/v2/enqueue",
"sendBody": true,
"bodyParameters": {
"parameters": [
{
"name": "routing_key",
"value": "={{$json.alert.routing_key}}"
},
{
"name": "event_action",
"value": "trigger"
},
{
"name": "payload",
"value": "={{JSON.stringify($json.alert.payload)}}"
}
]
},
"options": {}
},
"id": "http-pagerduty",
"name": "Send to PagerDuty",
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 3,
"position": [
1050,
200
]
},
{
"parameters": {
"functionCode": "// Prepare AI analysis prompt\nconst error = $input.all()[0].json;\n\nconst prompt = `You are an expert software engineer debugging a production error in a ${error.context.framework || 'web'} application.\n\n**Error Details:**\n- Type: ${error.error_type}\n- Message: ${error.error_message}\n- File: ${error.file_path}:${error.line_number}\n- Timestamp: ${error.timestamp}\n\n**Stack Trace:**\n\\`\\`\\`\n${error.stack_trace}\n\\`\\`\\`\n\n**Context:**\n\\`\\`\\`json\n${JSON.stringify(error.context, null, 2)}\n\\`\\`\\`\n\n**Your Tasks:**\n1. Analyze the root cause of this error\n2. Explain why it happened\n3. Provide a code fix (if possible)\n4. Suggest prevention strategies\n\n**Response Format (JSON):**\n\\`\\`\\`json\n{\n \"root_cause\": \"detailed analysis\",\n \"explanation\": \"why it happened\",\n \"fix_code\": \"actual code to fix the issue\",\n \"file_to_modify\": \"path/to/file.ts\",\n \"prevention\": [\"strategy 1\", \"strategy 2\"],\n \"confidence\": 0.95,\n \"can_auto_fix\": true\n}\n\\`\\`\\`\n\nAnalyze and fix:`;\n\nreturn [{ json: { ...error, ai_prompt: prompt } }];"
},
"id": "function-error-3",
"name": "Prepare AI Analysis",
"type": "n8n-nodes-base.function",
"typeVersion": 1,
"position": [
850,
400
]
},
{
"parameters": {
"url": "={{$env.NEXUSAI_API_URL}}/generate",
"authentication": "genericCredentialType",
"genericAuthType": "httpHeaderAuth",
"sendBody": true,
"bodyParameters": {
"parameters": [
{
"name": "prompt",
"value": "={{$json.ai_prompt}}"
},
{
"name": "model",
"value": "claude-3-7-sonnet-20250219"
},
{
"name": "provider",
"value": "anthropic"
},
{
"name": "response_format",
"value": "json_object"
}
]
},
"options": {}
},
"id": "http-ai-analyze",
"name": "AI Analyze Error",
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 3,
"position": [
1050,
400
],
"credentials": {
"httpHeaderAuth": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"functionCode": "// Parse AI response\nconst aiResponse = $input.all()[0].json;\nconst error = $node[\"Prepare AI Analysis\"].json;\n\nlet analysis;\ntry {\n analysis = JSON.parse(aiResponse.generated_text || '{}');\n} catch (e) {\n analysis = {\n root_cause: 'Failed to parse AI response',\n can_auto_fix: false\n };\n}\n\nreturn [{\n json: {\n ...error,\n ai_analysis: analysis,\n can_auto_fix: analysis.can_auto_fix || false,\n confidence: analysis.confidence || 0\n }\n}];"
},
"id": "function-error-4",
"name": "Parse AI Analysis",
"type": "n8n-nodes-base.function",
"typeVersion": 1,
"position": [
1250,
400
]
},
{
"parameters": {
"conditions": {
"boolean": [
{
"value1": "={{$json.can_auto_fix}}",
"value2": true
}
],
"number": [
{
"value1": "={{$json.confidence}}",
"operation": "largerEqual",
"value2": 0.8
}
]
}
},
"id": "if-autofix",
"name": "Can Auto-Fix?",
"type": "n8n-nodes-base.if",
"typeVersion": 1,
"position": [
1450,
400
]
},
{
"parameters": {
"functionCode": "// Prepare GitHub PR for auto-fix\nconst data = $input.all()[0].json;\nconst analysis = data.ai_analysis;\n\nconst branchName = `autofix/${data.app_id}-${Date.now()}`;\nconst commitMessage = `\ud83e\udd16 Auto-fix: ${data.error_type} in ${analysis.file_to_modify}`;\n\nconst prBody = `## \ud83e\udd16 Automated Fix\n\n**Error:** ${data.error_type}\n**File:** ${analysis.file_to_modify}:${data.line_number}\n\n### Root Cause\n${analysis.root_cause}\n\n### Explanation\n${analysis.explanation}\n\n### Fix Applied\n\\`\\`\\`typescript\n${analysis.fix_code}\n\\`\\`\\`\n\n### Prevention\n${analysis.prevention.map(p => `- ${p}`).join('\\n')}\n\n---\n*Generated by NexusAI Auto-Fix (Confidence: ${(analysis.confidence * 100).toFixed(1)}%)*\n*Review carefully before merging*`;\n\nreturn [{\n json: {\n ...data,\n github: {\n branch_name: branchName,\n commit_message: commitMessage,\n pr_title: `\ud83e\udd16 Auto-fix: ${data.error_type}`,\n pr_body: prBody,\n file_to_modify: analysis.file_to_modify,\n fix_code: analysis.fix_code\n }\n }\n}];"
},
"id": "function-error-5",
"name": "Prepare GitHub PR",
"type": "n8n-nodes-base.function",
"typeVersion": 1,
"position": [
1650,
300
]
},
{
"parameters": {
"resource": "file",
"operation": "create",
"owner": "={{$env.GITHUB_OWNER}}",
"repository": "nexusai-apps",
"filePath": "={{$json.github.file_to_modify}}",
"fileContent": "={{$json.github.fix_code}}",
"commitMessage": "={{$json.github.commit_message}}",
"additionalParameters": {
"branch": "={{$json.github.branch_name}}"
}
},
"id": "github-commit",
"name": "Create GitHub Branch & Commit",
"type": "n8n-nodes-base.github",
"typeVersion": 1,
"position": [
1850,
300
],
"credentials": {
"githubApi": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"resource": "pullRequest",
"operation": "create",
"owner": "={{$env.GITHUB_OWNER}}",
"repository": "nexusai-apps",
"title": "={{$json.github.pr_title}}",
"body": "={{$json.github.pr_body}}",
"head": "={{$json.github.branch_name}}",
"base": "main",
"additionalParameters": {
"labels": [
"auto-fix",
"bug"
]
}
},
"id": "github-pr",
"name": "Create Pull Request",
"type": "n8n-nodes-base.github",
"typeVersion": 1,
"position": [
2050,
300
],
"credentials": {
"githubApi": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"functionCode": "// Format final Slack notification\nconst data = $input.all()[0].json;\nconst analysis = data.ai_analysis;\nconst prUrl = data.html_url || '#';\n\nconst message = {\n text: `\ud83d\udea8 Error Auto-Fix Created`,\n blocks: [\n {\n type: \"header\",\n text: {\n type: \"plain_text\",\n text: data.severity === 'critical' ? '\ud83d\udea8 CRITICAL Error Auto-Fixed' : '\u26a0\ufe0f Error Auto-Fix Created'\n }\n },\n {\n type: \"section\",\n fields: [\n {\n type: \"mrkdwn\",\n text: `*App:*\\n${data.app_id}`\n },\n {\n type: \"mrkdwn\",\n text: `*Error:*\\n${data.error_type}`\n },\n {\n type: \"mrkdwn\",\n text: `*File:*\\n${analysis.file_to_modify}:${data.line_number}`\n },\n {\n type: \"mrkdwn\",\n text: `*Confidence:*\\n${(analysis.confidence * 100).toFixed(1)}%`\n }\n ]\n },\n {\n type: \"section\",\n text: {\n type: \"mrkdwn\",\n text: `*Root Cause:* ${analysis.root_cause}`\n }\n },\n {\n type: \"actions\",\n elements: [\n {\n type: \"button\",\n text: {\n type: \"plain_text\",\n text: \"Review PR\"\n },\n url: prUrl,\n style: \"primary\"\n },\n {\n type: \"button\",\n text: {\n type: \"plain_text\",\n text: \"View App\"\n },\n url: `https://chatbuilds.com/app/${data.app_id}`\n }\n ]\n }\n ]\n};\n\nreturn [{ json: { ...data, message } }];"
},
"id": "function-error-6",
"name": "Format Success Message",
"type": "n8n-nodes-base.function",
"typeVersion": 1,
"position": [
2250,
300
]
},
{
"parameters": {
"url": "={{$env.SLACK_WEBHOOK_ERRORS}}",
"sendBody": true,
"bodyParameters": {
"parameters": [
{
"name": "text",
"value": "={{$json.message.text}}"
},
{
"name": "blocks",
"value": "={{JSON.stringify($json.message.blocks)}}"
}
]
},
"options": {}
},
"id": "http-slack-errors",
"name": "Send to Slack",
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 3,
"position": [
2450,
300
]
},
{
"parameters": {
"respondWith": "json",
"responseBody": "={{ { \"success\": true, \"error_id\": $json.app_id, \"auto_fix_applied\": $json.can_auto_fix, \"pr_url\": $json.html_url } }}"
},
"id": "respond-error",
"name": "Respond to Webhook",
"type": "n8n-nodes-base.respondToWebhook",
"typeVersion": 1,
"position": [
2650,
300
]
}
],
"connections": {
"Webhook - Error Report": {
"main": [
[
{
"node": "Parse Error Details",
"type": "main",
"index": 0
}
]
]
},
"Parse Error Details": {
"main": [
[
{
"node": "Is Critical?",
"type": "main",
"index": 0
}
]
]
},
"Is Critical?": {
"main": [
[
{
"node": "Create Critical Alert",
"type": "main",
"index": 0
}
],
[
{
"node": "Prepare AI Analysis",
"type": "main",
"index": 0
}
]
]
},
"Create Critical Alert": {
"main": [
[
{
"node": "Send to PagerDuty",
"type": "main",
"index": 0
}
]
]
},
"Send to PagerDuty": {
"main": [
[
{
"node": "Prepare AI Analysis",
"type": "main",
"index": 0
}
]
]
},
"Prepare AI Analysis": {
"main": [
[
{
"node": "AI Analyze Error",
"type": "main",
"index": 0
}
]
]
},
"AI Analyze Error": {
"main": [
[
{
"node": "Parse AI Analysis",
"type": "main",
"index": 0
}
]
]
},
"Parse AI Analysis": {
"main": [
[
{
"node": "Can Auto-Fix?",
"type": "main",
"index": 0
}
]
]
},
"Can Auto-Fix?": {
"main": [
[
{
"node": "Prepare GitHub PR",
"type": "main",
"index": 0
}
]
]
},
"Prepare GitHub PR": {
"main": [
[
{
"node": "Create GitHub Branch & Commit",
"type": "main",
"index": 0
}
]
]
},
"Create GitHub Branch & Commit": {
"main": [
[
{
"node": "Create Pull Request",
"type": "main",
"index": 0
}
]
]
},
"Create Pull Request": {
"main": [
[
{
"node": "Format Success Message",
"type": "main",
"index": 0
}
]
]
},
"Format Success Message": {
"main": [
[
{
"node": "Send to Slack",
"type": "main",
"index": 0
}
]
]
},
"Send to Slack": {
"main": [
[
{
"node": "Respond to Webhook",
"type": "main",
"index": 0
}
]
]
}
},
"settings": {
"executionOrder": "v1",
"saveDataErrorExecution": "all",
"executionTimeout": 300
},
"staticData": null,
"tags": [
{
"name": "NexusAI",
"id": "nexusai"
},
{
"name": "Error Handling",
"id": "error-handling"
},
{
"name": "AI",
"id": "ai"
}
]
}
Credentials you'll need
Each integration node will prompt for credentials when you import. We strip credential IDs before publishing — you'll add your own.
githubApihttpHeaderAuth
Pro
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About this workflow
NexusAI - Error Handler & Auto-Fix. Uses httpRequest, github. Webhook trigger; 15 nodes.
Source: https://github.com/Mucrypt/vpn-enterprise/blob/eca075f8db8f3104c6789c32b97a0dca0a45d54a/n8n-workflows/04-error-handler.json — original creator credit. Request a take-down →
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