This workflow follows the Execute Workflow Trigger → HTTP Request recipe pattern — see all workflows that pair these two integrations.
The workflow JSON
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{
"name": "DocFlow 05 - Contract Extractor",
"nodes": [
{
"parameters": {},
"id": "trigger-05",
"name": "When Called by Workflow",
"type": "n8n-nodes-base.executeWorkflowTrigger",
"typeVersion": 1,
"position": [
240,
300
]
},
{
"parameters": {
"method": "POST",
"url": "https://openrouter.ai/api/v1/chat/completions",
"authentication": "genericCredentialType",
"genericAuthType": "httpHeaderAuth",
"sendHeaders": true,
"headerParameters": {
"parameters": [
{
"name": "Content-Type",
"value": "application/json"
},
{
"name": "HTTP-Referer",
"value": "https://docflow.local"
},
{
"name": "X-Title",
"value": "DocFlow AI"
}
]
},
"sendBody": true,
"specifyBody": "json",
"jsonBody": "={\n \"model\": \"openai/gpt-4o-mini\",\n \"messages\": [\n {\"role\": \"system\", \"content\": \"You are a contract analyst. Extract key facts from the contract text into valid JSON. Do not invent; use null for missing fields. Output JSON only. Schema: {party_a (req), party_b (req), contract_type (req), start_date (YYYY-MM-DD), end_date (YYYY-MM-DD), auto_renew (bool), key_obligations (array of <=8 short strings), payment_terms, termination_clause_summary (<=300 chars), governing_law, signed (bool), confidence (0..1, req)}. Normalize dates to YYYY-MM-DD. Keep names in source language.\"},\n {\"role\": \"user\", \"content\": $json.raw_text}\n ],\n \"response_format\": {\"type\": \"json_object\"},\n \"temperature\": 0.1,\n \"max_tokens\": 1200\n}",
"options": {
"response": {
"response": {
"responseFormat": "json"
}
},
"timeout": 60000,
"retry": {
"tries": 3,
"waitBetweenTries": 2000
}
}
},
"id": "llm-05",
"name": "Call OpenRouter (Extract)",
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 4.2,
"position": [
460,
300
],
"credentials": {
"httpHeaderAuth": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"jsCode": "const env = $('When Called by Workflow').first().json;\nconst raw = $input.first().json;\nconst content = raw?.choices?.[0]?.message?.content ?? '{}';\nlet extracted;\ntry { extracted = JSON.parse(content); }\ncatch (e) { extracted = { confidence: 0, _parse_error: true }; }\nreturn [{ json: { ...env, extracted, extraction_confidence: extracted.confidence ?? 0 } }];"
},
"id": "parse-05",
"name": "Parse JSON",
"type": "n8n-nodes-base.code",
"typeVersion": 2,
"position": [
680,
300
]
},
{
"parameters": {
"jsCode": "const env = $input.first().json;\nconst e = env.extracted || {};\nconst errors = [];\n\nfor (const f of ['party_a','party_b','contract_type','confidence']) if (e[f] == null || e[f] === '') errors.push('required:' + f);\nfor (const f of ['start_date','end_date']) if (e[f] && !/^\\d{4}-\\d{2}-\\d{2}$/.test(e[f])) errors.push('date:' + f + ':not_iso');\nif (e.start_date && e.end_date && e.start_date > e.end_date) errors.push('date:start_after_end');\nif (Array.isArray(e.key_obligations) && e.key_obligations.length > 8) errors.push('key_obligations:too_many');\n\nconst conf = e.confidence ?? 0;\nconst minConf = env.client_config?.thresholds?.extract_min_confidence ?? 0.8;\nif (conf < minConf) errors.push('confidence:overall:' + conf);\n\nenv.extraction_confidence = conf;\nenv.validation = { ok: errors.length === 0, errors };\nreturn [{ json: env }];"
},
"id": "validate-05",
"name": "Validate",
"type": "n8n-nodes-base.code",
"typeVersion": 2,
"position": [
900,
300
]
},
{
"parameters": {
"conditions": {
"options": {
"caseSensitive": true,
"leftValue": "",
"typeValidation": "strict"
},
"conditions": [
{
"id": "validation-gate-05",
"leftValue": "={{ $json.validation.ok }}",
"rightValue": "",
"operator": {
"type": "boolean",
"operation": "true",
"singleValue": true
}
}
],
"combinator": "and"
},
"options": {}
},
"id": "gate-05",
"name": "Validation Gate",
"type": "n8n-nodes-base.if",
"typeVersion": 2,
"position": [
1120,
300
]
},
{
"parameters": {
"resource": "databasePage",
"operation": "create",
"databaseId": {
"__rl": true,
"value": "={{ $json.client_config.destinations.contracts.database_id }}",
"mode": "id"
},
"title": "={{ $json.extracted.party_a }} <-> {{ $json.extracted.party_b }}",
"propertiesUi": {
"propertyValues": [
{
"key": "Party A",
"type": "rich_text",
"textContent": "={{ $json.extracted.party_a }}"
},
{
"key": "Party B",
"type": "rich_text",
"textContent": "={{ $json.extracted.party_b }}"
},
{
"key": "Contract Type",
"type": "select",
"selectValue": "={{ $json.extracted.contract_type }}"
},
{
"key": "Start Date",
"type": "date",
"date": "={{ $json.extracted.start_date }}"
},
{
"key": "End Date",
"type": "date",
"date": "={{ $json.extracted.end_date }}"
},
{
"key": "Signed",
"type": "checkbox",
"checkboxValue": "={{ $json.extracted.signed === true }}"
},
{
"key": "Confidence",
"type": "number",
"numberValue": "={{ $json.extraction_confidence }}"
},
{
"key": "Source",
"type": "url",
"urlValue": "={{ $json.source_meta?.drive_file_link ?? '' }}"
}
]
},
"blockUi": {
"blockValues": [
{
"type": "heading_2",
"richText": false,
"textContent": "Key Obligations"
},
{
"type": "paragraph",
"richText": false,
"textContent": "={{ ($json.extracted.key_obligations ?? []).map(o => '- ' + o).join('\\n') }}"
},
{
"type": "heading_2",
"richText": false,
"textContent": "Termination"
},
{
"type": "paragraph",
"richText": false,
"textContent": "={{ $json.extracted.termination_clause_summary ?? '(none)' }}"
}
]
}
},
"id": "notion-05",
"name": "Create Notion Page",
"type": "n8n-nodes-base.notion",
"typeVersion": 2.2,
"position": [
1340,
200
],
"credentials": {
"notionApi": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"chatId": "={{ $('Validate').item.json.client_config.telegram.chat_id }}",
"text": "=Contract processed\nParties: {{ $('Validate').item.json.extracted.party_a }} <-> {{ $('Validate').item.json.extracted.party_b }}\nType: {{ $('Validate').item.json.extracted.contract_type }}\nConfidence: {{ $('Validate').item.json.extraction_confidence }}",
"additionalFields": {}
},
"id": "telegram-05",
"name": "Telegram Success",
"type": "n8n-nodes-base.telegram",
"typeVersion": 1.2,
"position": [
1560,
200
],
"credentials": {
"telegramApi": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"jsCode": "const env = $input.first().json;\nenv.review_reason = env.validation?.ok ? 'extract_low_conf' : 'validation_failed';\nreturn [{ json: env }];"
},
"id": "tag-review-05",
"name": "Tag Review Reason",
"type": "n8n-nodes-base.code",
"typeVersion": 2,
"position": [
1340,
400
]
},
{
"parameters": {
"workflowId": {
"__rl": true,
"value": "REPLACE_WITH_WORKFLOW_07_ID",
"mode": "id"
},
"options": {}
},
"id": "call-07-from-05",
"name": "Route to Review",
"type": "n8n-nodes-base.executeWorkflow",
"typeVersion": 1.2,
"position": [
1560,
400
]
}
],
"connections": {
"When Called by Workflow": {
"main": [
[
{
"node": "Call OpenRouter (Extract)",
"type": "main",
"index": 0
}
]
]
},
"Call OpenRouter (Extract)": {
"main": [
[
{
"node": "Parse JSON",
"type": "main",
"index": 0
}
]
]
},
"Parse JSON": {
"main": [
[
{
"node": "Validate",
"type": "main",
"index": 0
}
]
]
},
"Validate": {
"main": [
[
{
"node": "Validation Gate",
"type": "main",
"index": 0
}
]
]
},
"Validation Gate": {
"main": [
[
{
"node": "Create Notion Page",
"type": "main",
"index": 0
}
],
[
{
"node": "Tag Review Reason",
"type": "main",
"index": 0
}
]
]
},
"Create Notion Page": {
"main": [
[
{
"node": "Telegram Success",
"type": "main",
"index": 0
}
]
]
},
"Tag Review Reason": {
"main": [
[
{
"node": "Route to Review",
"type": "main",
"index": 0
}
]
]
}
},
"active": false,
"settings": {
"executionOrder": "v1"
},
"tags": [
{
"name": "docflow"
}
]
}
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.
httpHeaderAuthnotionApitelegramApi
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About this workflow
DocFlow 05 - Contract Extractor. Uses executeWorkflowTrigger, httpRequest, notion, telegram. Event-driven trigger; 9 nodes.
Source: https://github.com/Moamen-Elsharkawy/docflow-ai/blob/main/n8n-exports/05-contract-extractor.json — original creator credit. Request a take-down →
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