{ "name": "Business Post Pipeline", "nodes": [ { "parameters": { "rule": { "interval": [ { "field": "hours", "hoursInterval": 6 } ] } }, "id": "bpp-0001", "name": "Schedule Trigger", "type": "n8n-nodes-base.scheduleTrigger", "typeVersion": 1.1, "position": [ -800, 300 ] }, { "parameters": { "jsCode": "const runId = `run_${Date.now()}`;\nconst runAt = new Date().toISOString();\nconsole.log(`[Pipeline] Starting run: ${runId}`);\nreturn [{ json: { runId, runAt } }];" }, "id": "bpp-0002", "name": "Init Run", "type": "n8n-nodes-base.code", "typeVersion": 2, "position": [ -560, 300 ] }, { "parameters": { "url": "https://seekingalpha.com/tag/earnings/news.xml", "options": { "timeout": 10000 }, "onError": "continueErrorOutput" }, "id": "bpp-0003", "name": "Fetch Earnings RSS", "type": "n8n-nodes-base.httpRequest", "typeVersion": 4.2, "position": [ -300, 160 ] }, { "parameters": { "url": "https://www.nist.gov/news-events/news/rss.xml", "options": { "timeout": 10000 }, "onError": "continueErrorOutput" }, "id": "bpp-0004", "name": "Fetch Regulatory RSS", "type": "n8n-nodes-base.httpRequest", "typeVersion": 4.2, "position": [ -300, 440 ] }, { "parameters": { "jsCode": "// Feed failed \u2014 log and swallow so other stream continues\nconst err = $input.item.json.error || 'Unknown error';\nconsole.error(`[Pipeline] Earnings feed failed: ${err}`);\nreturn [];" }, "id": "bpp-0005", "name": "Handle Earnings Error", "type": "n8n-nodes-base.code", "typeVersion": 2, "position": [ -300, 40 ] }, { "parameters": { "jsCode": "const err = $input.item.json.error || 'Unknown error';\nconsole.error(`[Pipeline] Regulatory feed failed: ${err}`);\nreturn [];" }, "id": "bpp-0006", "name": "Handle Regulatory Error", "type": "n8n-nodes-base.code", "typeVersion": 2, "position": [ -300, 560 ] }, { "parameters": { "jsCode": "// Parse RSS XML and extract article metadata\nconst body = $input.item.json.data || '';\nconst MAX = parseInt(process.env.MAX_ITEMS_PER_RUN || '3');\nconst blocks = (body.match(/(.*?)<\\/item>/gs) || []).slice(0, MAX);\nconst items = [];\nfor (const block of blocks) {\n const title = (block.match(/(?:<!\\[CDATA\\[)?(.*?)(?:\\]\\]>)?<\\/title>/) || [])[1] || '';\n const url = (block.match(/<link>(.*?)<\\/link>/) || [])[1] || '';\n const desc = (block.match(/<description>(?:<!\\[CDATA\\[)?(.*?)(?:\\]\\]>)?<\\/description>/) || [])[1] || '';\n const pubDate = (block.match(/<pubDate>(.*?)<\\/pubDate>/) || [])[1] || '';\n if (title && url) {\n items.push({ json: {\n title: title.trim(),\n url: url.trim(),\n description: desc.replace(/<[^>]+>/g, '').trim().slice(0, 600),\n pubDate,\n sourceType: 'earnings',\n sourceName: 'Seeking Alpha'\n }});\n }\n}\nconsole.log(`[Pipeline] Parsed ${items.length} earnings items`);\nreturn items;" }, "id": "bpp-0007", "name": "Parse Earnings Items", "type": "n8n-nodes-base.code", "typeVersion": 2, "position": [ -60, 160 ] }, { "parameters": { "jsCode": "// Parse RSS and keyword-filter for AI relevance\nconst body = $input.item.json.data || '';\nconst KEYWORDS = ['artificial intelligence','AI','machine learning','automation','LLM','AI governance','AI compliance','AI regulation','AI Act','cybersecurity'];\nconst MAX = parseInt(process.env.MAX_ITEMS_PER_RUN || '3');\nconst blocks = body.match(/<item>(.*?)<\\/item>/gs) || [];\nconst items = [];\nfor (const block of blocks) {\n if (items.length >= MAX) break;\n const title = (block.match(/<title>(?:<!\\[CDATA\\[)?(.*?)(?:\\]\\]>)?<\\/title>/) || [])[1] || '';\n const url = (block.match(/<link>(.*?)<\\/link>/) || [])[1] || '';\n const desc = (block.match(/<description>(?:<!\\[CDATA\\[)?(.*?)(?:\\]\\]>)?<\\/description>/) || [])[1] || '';\n const pubDate = (block.match(/<pubDate>(.*?)<\\/pubDate>/) || [])[1] || '';\n const combined = (title + ' ' + desc).toLowerCase();\n if (KEYWORDS.some(kw => combined.includes(kw.toLowerCase())) && title && url) {\n items.push({ json: {\n title: title.trim(),\n url: url.trim(),\n description: desc.replace(/<[^>]+>/g, '').trim().slice(0, 600),\n pubDate,\n sourceType: 'regulatory',\n sourceName: 'NIST'\n }});\n }\n}\nconsole.log(`[Pipeline] Parsed ${items.length} regulatory items`);\nreturn items;" }, "id": "bpp-0008", "name": "Parse Regulatory Items", "type": "n8n-nodes-base.code", "typeVersion": 2, "position": [ -60, 440 ] }, { "parameters": { "jsCode": "// Merge both streams and generate SHA-256 hash per item\nconst crypto = require('crypto');\nconst items = $input.all();\nconst result = [];\nfor (const item of items) {\n const { title, url } = item.json;\n if (!title || !url) continue;\n const hash = crypto.createHash('sha256').update(title + url).digest('hex');\n result.push({ json: { ...item.json, hash } });\n}\nconsole.log(`[Pipeline] ${result.length} items ready for memory check`);\nreturn result;" }, "id": "bpp-0009", "name": "Merge and Hash Items", "type": "n8n-nodes-base.code", "typeVersion": 2, "position": [ 180, 300 ] }, { "parameters": { "operation": "executeQuery", "query": "SELECT hash FROM pipeline_memory WHERE hash = '{{ $json.hash }}' LIMIT 1;", "options": {} }, "id": "bpp-0010", "name": "Check Memory (Postgres)", "type": "n8n-nodes-base.postgres", "typeVersion": 2.5, "position": [ 420, 300 ], "credentials": { "postgres": { "name": "<your credential>" } } }, { "parameters": { "jsCode": "// If Postgres returned a row \u2192 duplicate, skip\n// If empty \u2192 new item, pass through\nconst result = $input.item.json;\nif (Array.isArray(result) && result.length > 0) {\n console.log(`[Pipeline] Duplicate skipped: ${result[0]?.hash}`);\n return [];\n}\nreturn [$input.item];" }, "id": "bpp-0011", "name": "Filter Duplicates", "type": "n8n-nodes-base.code", "typeVersion": 2, "position": [ 660, 300 ] }, { "parameters": { "jsCode": "// Build Brand DNA style config and inject into AI prompt\nconst brandDNA = {\n voice: 'Direct, sharp, slightly contrarian. Practitioner who has seen things fail.',\n hook: 'Open with a surprising stat or uncomfortable truth. Never start with I or In todays.',\n structure: 'Short punchy paragraphs. Max 2 sentences each.',\n cta: 'End with a quiet open question \u2014 not a hard sell.',\n length: '150-220 words',\n emoji: 'Maximum 1, only for directional emphasis like arrow down',\n hashtags: 'Exactly 3, always on the very last line',\n forbidden: 'leverage, synergy, ecosystem, game-changer, delve, robust, seamless, cutting-edge',\n rules: [\n 'Always anchor to real data or a named source',\n 'Never make predictions \u2014 focus on what the data shows now',\n 'Every paragraph should feel like it is about the reader, not the writer',\n 'If it sounds like a vendor pitch, rewrite it'\n ]\n};\n\nconst item = $input.item.json;\n\nconst prompt = `You are a ghostwriter for a senior enterprise AI practitioner publishing on LinkedIn.\n\nBRAND DNA \u2014 NON-NEGOTIABLE RULES:\nVoice: ${brandDNA.voice}\nHook style: ${brandDNA.hook}\nStructure: ${brandDNA.structure}\nClosing: ${brandDNA.cta}\nLength: ${brandDNA.length}\nEmoji: ${brandDNA.emoji}\nHashtags: ${brandDNA.hashtags}\nForbidden words: ${brandDNA.forbidden}\nRules:\n${brandDNA.rules.map(r => '- ' + r).join('\\n')}\n\nWrite a LinkedIn post based on this ${item.sourceType} update:\nTitle: ${item.title}\nSource: ${item.sourceName}\nSummary: ${item.description}\n\nFind the ONE most surprising or counterintuitive truth in this source and build the post around it.\nReturn ONLY the post text. No preamble. No quotation marks. No markdown.`;\n\nreturn [{ json: { ...item, prompt } }];" }, "id": "bpp-0012", "name": "Inject Brand DNA", "type": "n8n-nodes-base.code", "typeVersion": 2, "position": [ 900, 300 ] }, { "parameters": { "promptType": "define", "text": "={{ $json.prompt }}", "options": { "systemMessage": "You are a ghostwriter for a senior enterprise AI practitioner. Follow the Brand DNA rules in the prompt exactly. Return ONLY the LinkedIn post text \u2014 no preamble, no explanation, no markdown, no quotation marks." } }, "id": "bpp-0013", "name": "Gemini: Draft Post", "type": "@n8n/n8n-nodes-langchain.agent", "typeVersion": 3.1, "position": [ 1140, 300 ], "retryOnFail": true, "waitBetweenTries": 2000 }, { "parameters": { "options": {} }, "id": "bpp-0014", "name": "Google Gemini Chat Model", "type": "@n8n/n8n-nodes-langchain.lmChatGoogleGemini", "typeVersion": 1.1, "position": [ 1140, 500 ], "credentials": { "googlePalmApi": { "name": "<your credential>" } } }, { "parameters": { "jsCode": "// Extract post text from Gemini agent output\nconst output = $input.item.json.output || '';\nif (!output.trim()) {\n console.error('[Pipeline] Gemini returned empty output');\n return [];\n}\nconsole.log(`[Pipeline] Post drafted \u2014 ${output.trim().split(' ').length} words`);\nreturn [{ json: { ...$node['Inject Brand DNA'].json, postText: output.trim() } }];" }, "id": "bpp-0015", "name": "Extract Post Text", "type": "n8n-nodes-base.code", "typeVersion": 2, "position": [ 1380, 300 ] }, { "parameters": { "jsCode": "// Build Slack Block Kit card and Gmail HTML for approval gate\nconst item = $input.item.json;\nconst base = process.env.N8N_WEBHOOK_BASE_URL || 'http://localhost:5678';\nconst crypto = require('crypto');\nconst token = crypto\n .createHmac('sha256', process.env.APPROVAL_WEBHOOK_SECRET || 'dev-secret')\n .update(item.hash)\n .digest('hex')\n .slice(0, 16);\n\nconst approveUrl = `${base}/webhook/pipeline-approval?hash=${item.hash}&token=${token}&action=approve`;\nconst rejectUrl = `${base}/webhook/pipeline-approval?hash=${item.hash}&token=${token}&action=reject`;\n\n// Slack Block Kit\nconst slackBlocks = [\n { type: 'header', text: { type: 'plain_text', text: '\ud83d\udccb LinkedIn Post \u2014 Ready for Review' } },\n { type: 'section', fields: [\n { type: 'mrkdwn', text: `*Source:* ${item.sourceName}` },\n { type: 'mrkdwn', text: `*Type:* ${item.sourceType}` }\n ]},\n { type: 'section', text: { type: 'mrkdwn', text: `*Article:*\\n${item.title}` } },\n { type: 'divider' },\n { type: 'section', text: { type: 'mrkdwn', text: `*Draft Post:*\\n\\`\\`\\`${item.postText.slice(0, 800)}${item.postText.length > 800 ? '...' : ''}\\`\\`\\`` } },\n { type: 'divider' },\n { type: 'actions', elements: [\n { type: 'button', text: { type: 'plain_text', text: '\u2705 Approve' }, style: 'primary', url: approveUrl },\n { type: 'button', text: { type: 'plain_text', text: '\u274c Reject' }, style: 'danger', url: rejectUrl }\n ]},\n { type: 'context', elements: [{ type: 'mrkdwn', text: `\u23f1 Expires 48h \u00b7 Hash: ${item.hash.slice(0,8)}...` }] }\n];\n\n// Gmail HTML\nconst gmailHtml = `<html><body style=\"font-family:Arial,sans-serif;max-width:600px;margin:0 auto;padding:20px\">\n <h2 style=\"color:#1a1a2e\">\ud83d\udccb LinkedIn Post \u2014 Approval Required</h2>\n <table style=\"width:100%;border-collapse:collapse;margin-bottom:20px\">\n <tr><td style=\"padding:8px;background:#f5f5f5;font-weight:bold\">Source</td><td style=\"padding:8px\">${item.sourceName}</td></tr>\n <tr><td style=\"padding:8px;background:#f5f5f5;font-weight:bold\">Type</td><td style=\"padding:8px\">${item.sourceType}</td></tr>\n <tr><td style=\"padding:8px;background:#f5f5f5;font-weight:bold\">Article</td><td style=\"padding:8px\">${item.title}</td></tr>\n </table>\n <h3>Draft Post</h3>\n <div style=\"background:#f9f9f9;border-left:4px solid #667eea;padding:16px;white-space:pre-wrap;font-size:14px;line-height:1.7\">${item.postText}</div>\n <br/>\n <div style=\"text-align:center;margin:28px 0\">\n <a href=\"${approveUrl}\" style=\"background:#28a745;color:white;padding:14px 36px;text-decoration:none;border-radius:6px;margin-right:16px;font-weight:bold;font-size:16px\">\u2705 Approve</a>\n <a href=\"${rejectUrl}\" style=\"background:#dc3545;color:white;padding:14px 36px;text-decoration:none;border-radius:6px;font-weight:bold;font-size:16px\">\u274c Reject</a>\n </div>\n <p style=\"color:#aaa;font-size:11px;text-align:center\">Expires in 48 hours \u00b7 business_post_pipeline</p>\n</body></html>`;\n\nreturn [{ json: { ...item, token, approveUrl, rejectUrl, slackBlocks, gmailHtml } }];" }, "id": "bpp-0016", "name": "Build Approval Notification", "type": "n8n-nodes-base.code", "typeVersion": 2, "position": [ 1620, 300 ] }, { "parameters": { "select": "channel", "channelId": { "__rl": true, "value": "#content-approvals", "mode": "name" }, "blocksUi": "={{ JSON.stringify($json.slackBlocks) }}", "otherOptions": {} }, "id": "bpp-0017", "name": "Slack: Approval Card", "type": "n8n-nodes-base.slack", "typeVersion": 2.5, "position": [ 1860, 160 ], "credentials": { "slackApi": { "name": "<your credential>" } } }, { "parameters": { "sendTo": "={{ $env.APPROVAL_EMAIL }}", "subject": "=\ud83d\udccb Approve Post: {{ $json.title.slice(0, 55) }}...", "emailType": "html", "message": "={{ $json.gmailHtml }}", "options": {} }, "id": "bpp-0018", "name": "Gmail: Send Preview", "type": "n8n-nodes-base.gmail", "typeVersion": 2.1, "position": [ 1860, 440 ], "credentials": { "gmailOAuth2": { "name": "<your credential>" } } }, { "parameters": { "operation": "executeQuery", "query": "INSERT INTO pipeline_memory (hash, title, url, source_name, source_type, date_fetched, status)\nVALUES ('{{ $json.hash }}', '{{ $json.title.replace(/'/g, \"''\") }}', '{{ $json.url }}', '{{ $json.sourceName }}', '{{ $json.sourceType }}', NOW(), 'pending_approval')\nON CONFLICT (hash) DO NOTHING;", "options": {} }, "id": "bpp-0019", "name": "Memory: Mark Pending", "type": "n8n-nodes-base.postgres", "typeVersion": 2.5, "position": [ 2100, 300 ], "credentials": { "postgres": { "name": "<your credential>" } } }, { "parameters": { "httpMethod": "GET", "path": "pipeline-approval", "responseMode": "lastNode", "options": {} }, "id": "bpp-0020", "name": "Webhook: Approval Gate", "type": "n8n-nodes-base.webhook", "typeVersion": 2, "position": [ 2340, 300 ] }, { "parameters": { "jsCode": "// Validate HMAC token \u2014 prevents spoofed approvals\nconst { hash, token, action } = $input.item.json.query || {};\nif (!hash || !token || !['approve','reject'].includes(action)) {\n return [{ json: { valid: false, reason: 'Bad parameters' } }];\n}\nconst expected = require('crypto')\n .createHmac('sha256', process.env.APPROVAL_WEBHOOK_SECRET || 'dev-secret')\n .update(hash).digest('hex').slice(0, 16);\nif (token !== expected) {\n console.error(`[Pipeline] Invalid token for hash ${hash}`);\n return [{ json: { valid: false, reason: 'Invalid token' } }];\n}\nconsole.log(`[Pipeline] Decision: ${action} \u2014 hash: ${hash}`);\nreturn [{ json: { valid: true, hash, action } }];" }, "id": "bpp-0021", "name": "Validate Approval Token", "type": "n8n-nodes-base.code", "typeVersion": 2, "position": [ 2580, 300 ] }, { "parameters": { "conditions": { "options": { "caseSensitive": true, "leftValue": "", "typeValidation": "strict" }, "conditions": [ { "id": "cond-approve", "leftValue": "={{ $json.action }}", "rightValue": "approve", "operator": { "type": "string", "operation": "equals" } } ], "combinator": "and" }, "options": {} }, "id": "bpp-0022", "name": "Approve or Reject?", "type": "n8n-nodes-base.if", "typeVersion": 2.2, "position": [ 2820, 300 ] }, { "parameters": { "operation": "executeQuery", "query": "UPDATE pipeline_memory SET status = 'approved', outcome_at = NOW() WHERE hash = '{{ $json.hash }}';\nINSERT INTO pipeline_audit (hash, action, actioned_at) VALUES ('{{ $json.hash }}', 'approved', NOW()) ON CONFLICT DO NOTHING;", "options": {} }, "id": "bpp-0023", "name": "Memory: Mark Approved", "type": "n8n-nodes-base.postgres", "typeVersion": 2.5, "position": [ 3060, 160 ], "credentials": { "postgres": { "name": "<your credential>" } } }, { "parameters": { "operation": "executeQuery", "query": "UPDATE pipeline_memory SET status = 'rejected', outcome_at = NOW() WHERE hash = '{{ $json.hash }}';\nINSERT INTO pipeline_audit (hash, action, actioned_at) VALUES ('{{ $json.hash }}', 'rejected', NOW()) ON CONFLICT DO NOTHING;", "options": {} }, "id": "bpp-0024", "name": "Memory: Mark Rejected", "type": "n8n-nodes-base.postgres", "typeVersion": 2.5, "position": [ 3060, 440 ], "credentials": { "postgres": { "name": "<your credential>" } } }, { "parameters": { "respondWith": "text", "responseBody": "<html><body style='font-family:Arial;text-align:center;padding:60px'><h2 style='color:#28a745'>\u2705 Post Approved!</h2><p>The LinkedIn post has been queued for publishing.</p></body></html>", "options": { "responseHeaders": { "entries": [ { "name": "Content-Type", "value": "text/html" } ] } } }, "id": "bpp-0025", "name": "Response: Approved", "type": "n8n-nodes-base.respondToWebhook", "typeVersion": 1.1, "position": [ 3300, 160 ] }, { "parameters": { "respondWith": "text", "responseBody": "<html><body style='font-family:Arial;text-align:center;padding:60px'><h2 style='color:#dc3545'>\u274c Post Rejected</h2><p>Draft archived. Will not be published.</p></body></html>", "options": { "responseHeaders": { "entries": [ { "name": "Content-Type", "value": "text/html" } ] } } }, "id": "bpp-0026", "name": "Response: Rejected", "type": "n8n-nodes-base.respondToWebhook", "typeVersion": 1.1, "position": [ 3300, 440 ] }, { "parameters": { "operation": "executeQuery", "query": "INSERT INTO pipeline_audit (hash, action, actioned_at)\nVALUES ('{{ $json.hash }}', 'central_log', NOW())\nON CONFLICT DO NOTHING;", "options": {} }, "id": "bpp-0027", "name": "Central Audit Log", "type": "n8n-nodes-base.postgres", "typeVersion": 2.5, "position": [ 3540, 300 ], "credentials": { "postgres": { "name": "<your credential>" } } } ], "connections": { "Schedule Trigger": { "main": [ [ { "node": "Init Run", "type": "main", "index": 0 } ] ] }, "Init Run": { "main": [ [ { "node": "Fetch Earnings RSS", "type": "main", "index": 0 }, { "node": "Fetch Regulatory RSS", "type": "main", "index": 0 } ] ] }, "Fetch Earnings RSS": { "main": [ [ { "node": "Parse Earnings Items", "type": "main", "index": 0 } ], [ { "node": "Handle Earnings Error", "type": "main", "index": 0 } ] ] }, "Fetch Regulatory RSS": { "main": [ [ { "node": "Parse Regulatory Items", "type": "main", "index": 0 } ], [ { "node": "Handle Regulatory Error", "type": "main", "index": 0 } ] ] }, "Parse Earnings Items": { "main": [ [ { "node": "Merge and Hash Items", "type": "main", "index": 0 } ] ] }, "Parse Regulatory Items": { "main": [ [ { "node": "Merge and Hash Items", "type": "main", "index": 1 } ] ] }, "Merge and Hash Items": { "main": [ [ { "node": "Check Memory (Postgres)", "type": "main", "index": 0 } ] ] }, "Check Memory (Postgres)": { "main": [ [ { "node": "Filter Duplicates", "type": "main", "index": 0 } ] ] }, "Filter Duplicates": { "main": [ [ { "node": "Inject Brand DNA", "type": "main", "index": 0 } ] ] }, "Inject Brand DNA": { "main": [ [ { "node": "Gemini: Draft Post", "type": "main", "index": 0 } ] ] }, "Google Gemini Chat Model": { "ai_languageModel": [ [ { "node": "Gemini: Draft Post", "type": "ai_languageModel", "index": 0 } ] ] }, "Gemini: Draft Post": { "main": [ [ { "node": "Extract Post Text", "type": "main", "index": 0 } ] ] }, "Extract Post Text": { "main": [ [ { "node": "Build Approval Notification", "type": "main", "index": 0 } ] ] }, "Build Approval Notification": { "main": [ [ { "node": "Slack: Approval Card", "type": "main", "index": 0 }, { "node": "Gmail: Send Preview", "type": "main", "index": 0 } ] ] }, "Slack: Approval Card": { "main": [ [ { "node": "Memory: Mark Pending", "type": "main", "index": 0 } ] ] }, "Gmail: Send Preview": { "main": [ [ { "node": "Memory: Mark Pending", "type": "main", "index": 0 } ] ] }, "Memory: Mark Pending": { "main": [ [ { "node": "Webhook: Approval Gate", "type": "main", "index": 0 } ] ] }, "Webhook: Approval Gate": { "main": [ [ { "node": "Validate Approval Token", "type": "main", "index": 0 } ] ] }, "Validate Approval Token": { "main": [ [ { "node": "Approve or Reject?", "type": "main", "index": 0 } ] ] }, "Approve or Reject?": { "main": [ [ { "node": "Memory: Mark Approved", "type": "main", "index": 0 } ], [ { "node": "Memory: Mark Rejected", "type": "main", "index": 0 } ] ] }, "Memory: Mark Approved": { "main": [ [ { "node": "Response: Approved", "type": "main", "index": 0 } ] ] }, "Memory: Mark Rejected": { "main": [ [ { "node": "Response: Rejected", "type": "main", "index": 0 } ] ] }, "Response: Approved": { "main": [ [ { "node": "Central Audit Log", "type": "main", "index": 0 } ] ] }, "Response: Rejected": { "main": [ [ { "node": "Central Audit Log", "type": "main", "index": 0 } ] ] } }, "settings": { "executionOrder": "v1", "saveManualExecutions": true, "errorWorkflow": "aQ4pRJ43HvubpN2W", "callerPolicy": "workflowsFromSameOwner" }, "staticData": null, "tags": [] }