The workflow JSON
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{
"name": "read-papers",
"nodes": [
{
"parameters": {
"httpMethod": "POST",
"path": "upload-paper",
"responseMode": "responseNode",
"options": {}
},
"id": "0cf693b1-4dfa-4bec-a485-ad07b40599fc",
"name": "\ud83d\udce5 Receive PDF",
"type": "n8n-nodes-base.webhook",
"typeVersion": 2,
"position": [
-120,
0
]
},
{
"parameters": {
"jsCode": "const binaryData = $input.item.binary;\n\nif (!binaryData || Object.keys(binaryData).length === 0) {\n throw new Error('No file received. Make sure you are sending the PDF as form-data in Postman with key type set to File.');\n}\n\n// Get whatever field name Postman used (data, file, etc.)\nconst fieldName = Object.keys(binaryData)[0];\nconst field = binaryData[fieldName];\n\nif (!field.data) {\n throw new Error('Binary field found but has no data. Re-check your Postman setup.');\n}\n\nreturn [{\n json: {\n base64: field.data,\n mimeType: field.mimeType || 'application/pdf',\n fileName: field.fileName || 'paper.pdf'\n }\n}];"
},
"id": "9679c801-b0fc-4ac7-8908-ca9c699eaf24",
"name": "\ud83d\udce6 Extract Base64",
"type": "n8n-nodes-base.code",
"typeVersion": 2,
"position": [
120,
0
]
},
{
"parameters": {
"method": "POST",
"url": "=https://generativelanguage.googleapis.com/v1beta/models/gemini-2.5-flash:generateContent?key=add-your-own-key",
"sendBody": true,
"contentType": "raw",
"rawContentType": "application/json",
"body": "={\n \"contents\": [{\n \"parts\": [\n {\n \"inline_data\": {\n \"mime_type\": \"{{ $json.mimeType }}\",\n \"data\": \"{{ $json.base64 }}\"\n }\n },\n {\n \"text\": \"You are an expert AI research analyst. Analyze this AI research paper and return a structured digest using clean HTML only (use <h2>, <ul>, <li> tags).\\n\\nInclude exactly these 3 sections:\\n\\n<h2>\ud83d\udd2c Key Findings & Conclusions</h2>\\nCore results, contributions, and what the paper proves. Bullet points.\\n\\n<h2>\u26a0\ufe0f Limitations</h2>\\nWeaknesses, gaps, or constraints \u2014 acknowledged or evident. Bullet points.\\n\\n<h2>\ud83d\ude80 Possible Improvements</h2>\\nConcrete future directions, enhancements, or open problems. Bullet points.\\n\\nBe concise but insightful. HTML only, no markdown.\"\n }\n ]\n }]\n}",
"options": {}
},
"id": "b0088ed1-5ad4-4fd0-870a-824b7df6c29d",
"name": "\ud83e\udd16 Gemini \u2014 Analyze Paper",
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 4.2,
"position": [
360,
0
]
},
{
"parameters": {
"jsCode": "const response = $input.item.json;\n\n// Extract Gemini's HTML summary\nconst summary = response.candidates?.[0]?.content?.parts?.[0]?.text;\n\nif (!summary) {\n throw new Error('Gemini returned no content. Check your API key or PDF format.');\n}\n\n// Get paper filename from extract node\nconst paperName = $('\ud83d\udce6 Extract Base64').item.json.fileName || 'AI Research Paper';\n\n// Build styled HTML email\nconst now = new Date();\nconst date = now.toLocaleDateString('en-US', {\n weekday: 'long', year: 'numeric', month: 'long', day: 'numeric'\n});\nconst time = now.toLocaleTimeString('en-US', { hour: '2-digit', minute: '2-digit' });\n\nconst emailHtml = `\n<!DOCTYPE html>\n<html>\n<head>\n <meta charset=\"UTF-8\">\n <style>\n * { box-sizing: border-box; margin: 0; padding: 0; }\n body { font-family: 'Segoe UI', Arial, sans-serif; background: #f0f2f5; }\n .wrapper { max-width: 680px; margin: 30px auto; }\n .header { background: linear-gradient(135deg, #0f0c29, #302b63, #24243e); padding: 40px; border-radius: 12px 12px 0 0; }\n .header h1 { color: #fff; font-size: 26px; font-weight: 700; letter-spacing: -0.5px; }\n .header p { color: #a0aec0; font-size: 14px; margin-top: 6px; }\n .badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(255,255,255,0.1); color: #e2e8f0; padding: 8px 16px; border-radius: 30px; font-size: 13px; font-weight: 600; margin-top: 16px; border: 1px solid rgba(255,255,255,0.15); }\n .body { background: #fff; padding: 40px; }\n .body h2 { font-size: 17px; font-weight: 700; margin: 28px 0 12px; padding: 10px 16px; border-radius: 8px; }\n .body h2:nth-of-type(1) { background: #ebf8ff; border-left: 4px solid #3182ce; color: #2b6cb0; }\n .body h2:nth-of-type(2) { background: #fff5f5; border-left: 4px solid #e53e3e; color: #c53030; }\n .body h2:nth-of-type(3) { background: #f0fff4; border-left: 4px solid #38a169; color: #276749; }\n .body ul { padding: 0 0 0 20px; }\n .body li { color: #4a5568; font-size: 15px; line-height: 1.9; margin-bottom: 4px; }\n .footer { background: #f7fafc; padding: 22px 40px; border-radius: 0 0 12px 12px; border-top: 1px solid #e2e8f0; display: flex; justify-content: space-between; align-items: center; }\n .footer p { color: #a0aec0; font-size: 12px; }\n .footer strong { color: #718096; }\n </style>\n</head>\n<body>\n <div class=\"wrapper\">\n <div class=\"header\">\n <h1>\ud83e\udde0 AI Paper Digest</h1>\n <p>${date} at ${time}</p>\n <div class=\"badge\">\ud83d\udcc4 ${paperName}</div>\n </div>\n <div class=\"body\">\n ${summary}\n </div>\n <div class=\"footer\">\n <p>Generated by your <strong>n8n AI Paper Digest</strong> \ud83e\udd16</p>\n <p><strong>Powered by Gemini</strong></p>\n </div>\n </div>\n</body>\n</html>`;\n\nreturn [{\n json: {\n html: emailHtml,\n subject: `\ud83e\udde0 AI Digest: ${paperName}`,\n paperName: paperName,\n timestamp: now.toISOString()\n }\n}];"
},
"id": "2be6aca1-d0ee-4671-b552-4473ace65abc",
"name": "\ud83c\udfa8 Build Email HTML",
"type": "n8n-nodes-base.code",
"typeVersion": 2,
"position": [
620,
0
]
},
{
"parameters": {
"method": "POST",
"url": "https://api.resend.com/emails",
"sendHeaders": true,
"headerParameters": {
"parameters": [
{
"name": "Authorization",
"value": "Bearer add-your-own-resend-api-key"
},
{
"name": "Content-Type",
"value": "application/json"
}
]
},
"sendBody": true,
"contentType": "raw",
"rawContentType": "application/json",
"body": "={\n \"from\": \"AI Digest <onboarding@resend.dev>\",\n \"to\": [\"add-your-own-email@example.com\"],\n \"subject\": {{ JSON.stringify($json.subject) }},\n \"html\": {{ JSON.stringify($json.html) }}\n}",
"options": {}
},
"id": "cbdb8c35-6736-4ff9-9241-3f3b192221b3",
"name": "\ud83d\udce7 Send via Resend",
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 4.2,
"position": [
880,
0
]
},
{
"parameters": {
"respondWith": "json",
"responseBody": "={\n \"status\": \"success\",\n \"message\": \"\u2705 Paper analyzed & email sent!\",\n \"paper\": \"{{ $('\ud83c\udfa8 Build Email HTML').item.json.paperName }}\",\n \"emailId\": \"{{ $json.id }}\",\n \"sentAt\": \"{{ $('\ud83c\udfa8 Build Email HTML').item.json.timestamp }}\"\n}",
"options": {}
},
"id": "490b27f9-8921-4e9d-bd43-9ceb629914c2",
"name": "\u2705 Respond to Caller",
"type": "n8n-nodes-base.respondToWebhook",
"typeVersion": 1,
"position": [
1140,
0
]
}
],
"connections": {
"\ud83d\udce5 Receive PDF": {
"main": [
[
{
"node": "\ud83d\udce6 Extract Base64",
"type": "main",
"index": 0
}
]
]
},
"\ud83d\udce6 Extract Base64": {
"main": [
[
{
"node": "\ud83e\udd16 Gemini \u2014 Analyze Paper",
"type": "main",
"index": 0
}
]
]
},
"\ud83e\udd16 Gemini \u2014 Analyze Paper": {
"main": [
[
{
"node": "\ud83c\udfa8 Build Email HTML",
"type": "main",
"index": 0
}
]
]
},
"\ud83c\udfa8 Build Email HTML": {
"main": [
[
{
"node": "\ud83d\udce7 Send via Resend",
"type": "main",
"index": 0
}
]
]
},
"\ud83d\udce7 Send via Resend": {
"main": [
[
{
"node": "\u2705 Respond to Caller",
"type": "main",
"index": 0
}
]
]
}
},
"active": false,
"settings": {
"executionOrder": "v1"
},
"versionId": "d580ee5a-f41e-4b75-b785-e5260955737e",
"id": "lZxqtU90tu7kSwut",
"tags": []
}
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About this workflow
read-papers. Uses httpRequest. Webhook trigger; 6 nodes.
Source: https://github.com/PratikPawar020403/automation-workflows/blob/6782e0ed6b6f59a8811d23cb4f7e5768629812e1/automations/AI_Paper_Digest.json — original creator credit. Request a take-down →
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