Generate concert ticket PDFs with QR codes using PDF Generator API

{"id":"xJYtz0FU0LQCj4uN","meta":{"instanceId":"82c5bea520362e516241165c0caf720c8d29d2f0ba5e3cae2ba36d2c25d3b3b3","templateCredsSetupCompleted":true},"name":"Concert Ticket Generator with QR Code (PDF Generator API)","tags":[],"nodes":[{"id":"sticky-001","name":"📋 Setup Instructions","type":"n8n-nodes-base.stickyNote","position":[-192,-448],"parameters":{"width":892,"height":776,"content":"## 🎵 Concert Ticket Generator\n### Powered by PDF Generator API\n\nThis workflow accepts ticket requests via a web form, generates a personalized **PDF ticket with a built-in QR code** using **PDF Generator API**, emails it to the attendee, logs the sale to **Google Sheets**, and notifies the event organizer via **Slack**.\n\n---\n\n### ⚙️ Setup (4 steps)\n\n**1. Create a PDF ticket template in PDF Generator API**\nSign up at [pdfgeneratorapi.com](https://pdfgeneratorapi.com) → Templates → New Template.\nDesign your concert ticket and use these data variables:\n- `ticket_id` — unique ticket identifier *(also the QR code data — see note →)*\n- `attendee_name` · `event_name` · `venue` · `event_date` · `seat_number`\n- `ticket_tier` — tier badge (GENERAL / VIP / BACKSTAGE)\n- `issued_date` — ticket issue date\n\n**2. Set your Template ID**\nIn the **Generate Concert Ticket PDF** node, replace `123456` with your actual template ID (found in the PDF Generator API dashboard).\n\n**3. Add credentials**\n- **Generate Concert Ticket PDF** node → add your PDF Generator API credentials\n- **Send Ticket to Attendee** node → connect your Gmail account\n- **Log Ticket Sale** node → connect your Google Sheets account\n- **Notify Event Organizer** node → connect your Slack account\n\n**4. Configure Google Sheets & Slack**\nSee the sticky notes on the right for details."},"typeVersion":1},{"id":"sticky-002","name":"🔲 QR Code & PDF Output","type":"n8n-nodes-base.stickyNote","position":[768,-80],"parameters":{"color":4,"width":420,"height":412,"content":"### 🔲 QR Code — Built into the Template\n\nThe QR code is **not generated by this workflow**. Instead, it is a native **QR Code component** inside your PDF Generator API template.\n\n**How to set it up in the template editor:**\n1. Open your template in PDF Generator API\n2. Add a **QR Code** component to the ticket design\n3. Set the QR code data field to: `{{ ticket_id }}`\n4. The QR will automatically encode the unique ticket ID for each generated PDF\n\nThis approach is simpler, more reliable, and gives you full design control over QR code size and position.\n\n---\n**Output format:** `URL` — the node returns a hosted PDF link valid for 30 days. Change to `File` to attach the PDF directly to the email (update the Gmail node accordingly)."},"typeVersion":1},{"id":"sticky-003","name":"📊 Google Sheets Setup","type":"n8n-nodes-base.stickyNote","position":[1264,16],"parameters":{"color":3,"width":380,"height":304,"content":"### 📊 Google Sheets Tracker\n\nLogs every issued ticket for event management.\n\n**Setup:**\n1. Create a Google Sheet with a tab named **Tickets**\n2. Add these column headers in row 1:\n   `Ticket ID` · `Attendee` · `Email` · `Event` · `Venue` · `Date` · `Seat` · `Tier` · `PDF URL` · `Issued At`\n3. In the **Log Ticket Sale** node, set your Spreadsheet ID and connect your Google account\n\n💡 Use this sheet to track attendance, validate tickets at the door, or export attendee lists."},"typeVersion":1},{"id":"sticky-004","name":"🔔 Slack Setup","type":"n8n-nodes-base.stickyNote","position":[1744,32],"parameters":{"color":7,"width":340,"height":294,"content":"### 🔔 Slack Notification\n\nSends a real-time alert to the event organizer whenever a new ticket is issued.\n\n**Setup:**\n1. Connect your Slack workspace in the **Notify Event Organizer** node\n2. Set the channel name (e.g. `#tickets` or `#events`)\n3. Optional: remove this node if you don't use Slack"},"typeVersion":1},{"id":"node-form","name":"Concert Ticket Form","type":"n8n-nodes-base.formTrigger","position":[288,384],"webhookId":"cc000001-0000-0000-0000-000000000001","parameters":{"path":"cc+1234567890-+1234567890","options":{},"formTitle":"🎵 Concert Ticket Request","formFields":{"values":[{"fieldLabel":"Full Name","placeholder":"Jane Smith","requiredField":true},{"fieldType":"email","fieldLabel":"Email Address","placeholder":"user@example.com","requiredField":true},{"fieldLabel":"Event Name","placeholder":"Summer Rock Festival 2025","requiredField":true},{"fieldLabel":"Venue","placeholder":"Madison Square Garden, New York","requiredField":true},{"fieldLabel":"Event Date","placeholder":"Saturday, July 5, 2025","requiredField":true},{"fieldLabel":"Seat Number","placeholder":"Section A, Row 3, Seat 12","requiredField":true},{"fieldType":"dropdown","fieldLabel":"Ticket Tier","fieldOptions":{"values":[{"option":"General Admission"},{"option":"VIP"},{"option":"Backstage Pass"}]},"requiredField":true}]},"formDescription":"Fill in your details to receive your personalized concert ticket via email. Your PDF ticket includes a unique QR code for venue entry."},"typeVersion":2.1},{"id":"node-prepare","name":"Prepare Ticket Data","type":"n8n-nodes-base.code","position":[688,384],"parameters":{"jsCode":"const item = $input.item.json;\n\n// Generate unique ticket ID (URL-safe, 8 chars)\nconst chars = 'ABCDEFGHJKLMNPQRSTUVWXYZ23456789';\nlet suffix = '';\nfor (let i = 0; i < 8; i++) {\n  suffix += chars[Math.floor(Math.random() * chars.length)];\n}\nconst ticketId = 'TKT-' + suffix;\n\nconst issuedDate = new Date().toLocaleDateString('en-US', {\n  year: 'numeric', month: 'long', day: 'numeric'\n});\n\nconst ticketTier = item['Ticket Tier'] || 'General Admission';\n\n// Tier badge for the PDF template and email\nconst tierBadge = ticketTier === 'VIP' ? 'VIP'\n  : ticketTier === 'Backstage Pass' ? 'BACKSTAGE'\n  : 'GENERAL';\n\n// Tier accent colour used in the confirmation email\nconst tierColor = ticketTier === 'VIP' ? '#7B2FBE'\n  : ticketTier === 'Backstage Pass' ? '#C0392B'\n  : '#0f3460';\n\n// ⚠️ Replace 123456 with your PDF Generator API template ID.\n// The template should include a QR Code component whose data is set to {{ ticket_id }}.\nconst TEMPLATE_ID = 1615251;\n\nreturn [{\n  json: {\n    ticketId,\n    attendeeName:  item['Full Name'],\n    attendeeEmail: item['Email Address'],\n    eventName:     item['Event Name'],\n    venue:         item['Venue'],\n    eventDate:     item['Event Date'],\n    seatNumber:    item['Seat Number'],\n    ticketTier,\n    tierBadge,\n    tierColor,\n    issuedDate,\n    emailSubject:  `🎫 Your ${ticketTier} Ticket: ${item['Event Name']} — ${ticketId}`,\n    templateId:    TEMPLATE_ID,\n    outputName:    `concert-ticket-${ticketId}`,\n    // Variables passed to the PDF Generator API template.\n    // Map each one to the corresponding component in your template editor.\n    templateData: {\n      ticket_id:     ticketId,\n      attendee_name: item['Full Name'],\n      event_name:    item['Event Name'],\n      venue:         item['Venue'],\n      event_date:    item['Event Date'],\n      seat_number:   item['Seat Number'],\n      ticket_tier:   tierBadge,\n      issued_date:   issuedDate\n    }\n  }\n}];\n"},"typeVersion":2},{"id":"node-pdfgen","name":"Generate Concert Ticket PDF","type":"@pdfgeneratorapi/n8n-nodes-pdf-generator-api.pdfGeneratorApi","position":[1088,384],"parameters":{"data":"={{ JSON.stringify($json.templateData) }}","templateId":{"__rl":true,"mode":"id","value":"={{ $json.templateId }}"},"documentOutput":"url","additionalFields":{"outputName":"={{ $json.outputName }}"}},"credentials":{"pdfGeneratorApi":{"id":"credential-id","name":"PDF Generator account 2"}},"typeVersion":1},{"id":"node-buildemail","name":"Build Confirmation Email","type":"n8n-nodes-base.code","position":[1488,384],"parameters":{"jsCode":"const pdfData    = $input.item.json;\nconst t          = $('Prepare Ticket Data').item.json;\n\n// URL returned by PDF Generator API (documentOutput: url)\nconst pdfUrl = pdfData.response || '';\n\n// Tier-specific header colour\nconst headerColor = t.tierColor || '#0f3460';\n\nconst emailHtml = ''\n  + '<!DOCTYPE html><html><body style=\"margin:0;padding:0;background:#f4f4f8;font-family:Arial,sans-serif\">'\n  + '<table width=\"100%\" cellpadding=\"0\" cellspacing=\"0\" style=\"padding:24px 0\"><tr><td align=\"center\">'\n  + '<table width=\"600\" cellpadding=\"0\" cellspacing=\"0\" style=\"background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 4px 24px rgba(0,0,0,0.12)\">'\n\n  // Header\n  + '<tr><td style=\"background:' + headerColor + ';padding:36px 30px;text-align:center\">'\n  + '<div style=\"font-size:44px;line-height:1\">🎵</div>'\n  + '<h1 style=\"color:#fff;margin:10px 0 4px;font-size:24px;font-weight:700\">Your Concert Ticket</h1>'\n  + '<span style=\"display:inline-block;background:rgba(255,255,255,0.2);color:#fff;padding:4px 18px;border-radius:20px;font-size:11px;letter-spacing:2px;font-weight:700;margin-top:6px\">'\n  + t.tierBadge\n  + '</span>'\n  + '</td></tr>'\n\n  // Body\n  + '<tr><td style=\"padding:32px 40px\">'\n  + '<p style=\"font-size:16px;color:#333;margin:0 0 10px\">Hi <strong>' + t.attendeeName + '</strong>,</p>'\n  + '<p style=\"color:#555;line-height:1.7;margin:0 0 24px\">Your <strong>' + t.ticketTier + '</strong> ticket is confirmed! Your personalized PDF — complete with a unique entry QR code — is ready to download.</p>'\n\n  // Event card\n  + '<table width=\"100%\" cellpadding=\"0\" cellspacing=\"0\" style=\"border:2px dashed ' + headerColor + ';border-radius:10px;margin-bottom:24px\"><tr><td style=\"padding:22px\">'\n  + '<h2 style=\"color:' + headerColor + ';margin:0 0 14px;font-size:19px\">🎸 ' + t.eventName + '</h2>'\n  + '<p style=\"margin:6px 0;color:#555;font-size:14px\">📍 <strong>Venue:</strong> ' + t.venue + '</p>'\n  + '<p style=\"margin:6px 0;color:#555;font-size:14px\">📅 <strong>Date:</strong> ' + t.eventDate + '</p>'\n  + '<p style=\"margin:6px 0;color:#555;font-size:14px\">💺 <strong>Seat:</strong> ' + t.seatNumber + '</p>'\n  + '<p style=\"margin:6px 0;color:#555;font-size:14px\">🎫 <strong>Ticket ID:</strong> <code style=\"background:#f0f0f0;padding:2px 7px;border-radius:4px;font-size:13px\">' + t.ticketId + '</code></p>'\n  + '</td></tr></table>'\n\n  // Download button\n  + '<table width=\"100%\" cellpadding=\"0\" cellspacing=\"0\"><tr><td align=\"center\" style=\"padding-bottom:24px\">'\n  + '<a href=\"' + pdfUrl + '\" style=\"background:' + headerColor + ';color:#fff;padding:14px 44px;border-radius:8px;text-decoration:none;font-size:15px;font-weight:700;display:inline-block\">📄 Download PDF Ticket</a>'\n  + '</td></tr></table>'\n\n  + '<p style=\"color:#999;font-size:12px;text-align:center;margin:0 0 4px\">Your PDF contains a unique QR code for venue entry.</p>'\n  + '<p style=\"color:#bbb;font-size:11px;text-align:center;margin:0\">Please have it ready — printed or on your phone.</p>'\n  + '</td></tr>'\n\n  // Footer\n  + '<tr><td style=\"background:#f8f8f8;padding:16px 30px;text-align:center;border-top:1px solid #eee\">'\n  + '<p style=\"color:#bbb;font-size:11px;margin:0\">PDF ticket generated with <a href=\"https://pdfgeneratorapi.com\" style=\"color:' + headerColor + ';text-decoration:none\">PDF Generator API</a> &bull; Automated by <a href=\"https://n8n.io\" style=\"color:' + headerColor + ';text-decoration:none\">n8n</a></p>'\n  + '</td></tr>'\n  + '</table></td></tr></table></body></html>';\n\nreturn [{\n  json: {\n    attendeeEmail: t.attendeeEmail,\n    emailSubject:  t.emailSubject,\n    emailHtml,\n    pdfUrl,\n    ticketId:  t.ticketId,\n    eventName: t.eventName,\n    tierBadge: t.tierBadge\n  }\n}];\n"},"typeVersion":2},{"id":"node-gmail","name":"Send Ticket to Attendee","type":"n8n-nodes-base.gmail","position":[1760,384],"webhookId":"a4e0dd25-c113-4f97-97c8-d38d323dd8dd","parameters":{"sendTo":"={{ $json.attendeeEmail }}","message":"={{ $json.emailHtml }}","options":{},"subject":"={{ $json.emailSubject }}"},"credentials":{"gmailOAuth2":{"id":"credential-id","name":"Gmail account"}},"typeVersion":2.1},{"id":"node-sheets","name":"Log Ticket Sale","type":"n8n-nodes-base.googleSheets","position":[2016,384],"parameters":{"columns":{"value":{},"schema":[],"mappingMode":"autoMapInputData","matchingColumns":[],"attemptToConvertTypes":false,"convertFieldsToString":false},"options":{},"operation":"appendOrUpdate","sheetName":{"__rl":true,"mode":"list","value":"gid=0","cachedResultUrl":"https://docs.google.com/spreadsheets/d/1hlzNCuQQH_1qq7fQiwRcxq84rKeR9bOVnf8o8hb4wug/edit#gid=0","cachedResultName":"Sheet1"},"documentId":{"__rl":true,"mode":"list","value":"1hlzNCuQQH_1qq7fQiwRcxq84rKeR9bOVnf8o8hb4wug","cachedResultUrl":"https://docs.google.com/spreadsheets/d/1hlzNCuQQH_1qq7fQiwRcxq84rKeR9bOVnf8o8hb4wug/edit?usp=drivesdk","cachedResultName":"Concert Tickets"}},"credentials":{"googleSheetsOAuth2Api":{"id":"credential-id","name":"Google Sheets account 2"}},"typeVersion":4.5},{"id":"node-slack","name":"Notify Event Organizer","type":"n8n-nodes-base.slack","position":[2288,384],"webhookId":"a7801711-2ba0-41b9-9dec-af02009f594e","parameters":{"text":"={{ '🎫 New ticket issued!\\n*' + $('Prepare Ticket Data').item.json.tierBadge + '* — ' + $('Prepare Ticket Data').item.json.eventName + '\\n\\n👤 *Attendee:* ' + $('Prepare Ticket Data').item.json.attendeeName + '\\n📧 ' + $('Prepare Ticket Data').item.json.attendeeEmail + '\\n💺 *Seat:* ' + $('Prepare Ticket Data').item.json.seatNumber + '\\n🎟 *Ticket ID:* ' + $('Prepare Ticket Data').item.json.ticketId + '\\n\\n📄 PDF: ' + $('Generate Concert Ticket PDF').item.json.response }}","user":{"__rl":true,"mode":"id","value":"U02P412345"},"select":"user","otherOptions":{}},"credentials":{"slackApi":{"id":"credential-id","name":"Slack account 2"}},"typeVersion":2.3}],"active":false,"pinData":{},"settings":{"callerPolicy":"workflowsFromSameOwner","availableInMCP":false,"executionOrder":"v1"},"versionId":"59716666-a031-4373-981d-99e95d12a1f9","connections":{"Log Ticket Sale":{"main":[[{"node":"Notify Event Organizer","type":"main","index":0}]]},"Concert Ticket Form":{"main":[[{"node":"Prepare Ticket Data","type":"main","index":0}]]},"Prepare Ticket Data":{"main":[[{"node":"Generate Concert Ticket PDF","type":"main","index":0}]]},"Send Ticket to Attendee":{"main":[[{"node":"Log Ticket Sale","type":"main","index":0}]]},"Build Confirmation Email":{"main":[[{"node":"Send Ticket to Attendee","type":"main","index":0}]]},"Generate Concert Ticket PDF":{"main":[[{"node":"Build Confirmation Email","type":"main","index":0}]]}}}