{ "id": "W1ugowsjzt1SC4hH", "meta": { "instanceId": "workflow-34e79306", "versionId": "1.0.0", "createdAt": "2025-09-29T07:08:01.379220", "updatedAt": "2025-09-29T07:08:01.379233", "owner": "n8n-user", "license": "MIT", "category": "automation", "status": "active", "priority": "high", "environment": "production" }, "name": "Validate Seatable Webhooks with HMAC SHA256 Authentication", "tags": [ "automation", "n8n", "production-ready", "excellent", "optimized" ], "nodes": [ { "id": "ec4bdb4f-3c3e-4405-af80-2ad7ab3d57fc", "name": "200", "type": "n8n-nodes-base.respondToWebhook", "position": [ 420, -20 ], "parameters": { "options": { "responseCode": 200 }, "respondWith": "noData" }, "typeVersion": 1, "notes": "This respondToWebhook node performs automated tasks as part of the workflow." }, { "id": "1b6c9f8c-1b5b-499d-abb5-bb1059b73ce7", "name": "403", "type": "n8n-nodes-base.respondToWebhook", "position": [ 420, 180 ], "parameters": { "options": { "responseCode": 403 }, "respondWith": "noData" }, "typeVersion": 1, "notes": "This respondToWebhook node performs automated tasks as part of the workflow." }, { "id": "e3976bf3-60e0-4c1c-bfdb-22ad336760a5", "name": "Calculate sha256", "type": "n8n-nodes-base.crypto", "position": [ -20, -20 ], "parameters": { "type": "SHA256", "action": "hmac", "binaryData": true, "dataPropertyName": "seatable-signature" }, "typeVersion": 1, "notes": "This crypto node performs automated tasks as part of the workflow." }, { "id": "5e74ba50-e0fe-41e0-9b84-7078f1d150a3", "name": "Seatable Webhook", "type": "n8n-nodes-base.webhook", "position": [ -240, -20 ], "webhookId": "8c9d8c0f-d5ea-469d-afc9-d4e8a352f1a4", "parameters": { "path": "s0m3-d4nd0m-1d", "options": { "rawBody": true }, "httpMethod": "POST", "responseMode": "responseNode" }, "typeVersion": 1, "notes": "This webhook node performs automated tasks as part of the workflow." }, { "id": "dbfcc59f-5411-4d99-8cde-26ae91cdd6af", "name": "Add nodes for processing", "type": "n8n-nodes-base.noOp", "position": [ 420, -220 ], "parameters": {}, "typeVersion": 1, "notes": "This noOp node performs automated tasks as part of the workflow." }, { "id": "a508534f-abb4-4455-b47a-1aaf56ce1124", "name": "hash matches", "type": "n8n-nodes-base.if", "position": [ 200, -20 ], "parameters": { "conditions": { "string": [ { "value1": "={{ String($json['seatable-signature']) }}", "value2": "={{ String($json.headers['x-seatable-signature'].replace(\"sha256=\", \"\")) }}" } ] } }, "typeVersion": 1, "notes": "This if node performs automated tasks as part of the workflow." }, { "id": "1495d5c1-3467-4639-a32d-51a6497aed51", "name": "Sticky Note", "type": "n8n-nodes-base.stickyNote", "position": [ -400, -660 ], "parameters": { "width": 720, "height": 580, "content": "## 📌 Validate Seatable Webhooks with HMAC SHA256 Authentication\n\nThis mini workflow is designed to **securely validate incoming Seatable webhooks** using HMAC SHA256 signature verification.\n\n### 🔐 What it does:\n- Listens for incoming Seatable webhook requests.\n- Calculates a SHA256 HMAC hash of the raw request body using your shared secret.\n- Compares the computed hash with the `x-seatable-signature` header (after removing the `sha256=` prefix).\n- If the hashes match: responds with **200 OK** and forwards the request to subsequent nodes.\n- If the hashes don’t match: responds with **403 Forbidden**.\n\n### ⚠️ Important Notes:\nThis workflow is provided as a **template** and is not intended to work standalone. **Please duplicate it** and integrate it with your custom logic at the \"Add nodes for processing\" node.\n\nConfiguration steps:\n- Set your **secret key** in the “Calculate sha256” crypto node (replace the placeholder).\n- Adjust the webhook path to suit your environment (or set it to \"manual\" for testing).\n- Connect your actual logic after the verification step.\n" }, "typeVersion": 1, "notes": "This stickyNote node performs automated tasks as part of the workflow." } ], "active": true, "pinData": {}, "settings": { "executionOrder": "v1", "saveManualExecutions": true, "callerPolicy": "workflowsFromSameOwner", "errorWorkflow": null, "timezone": "UTC", "executionTimeout": 3600, "maxExecutions": 1000, "retryOnFail": true, "retryCount": 3, "retryDelay": 1000 }, "versionId": "8da47cde-25ce-459e-a74d-91ba0d5173e3", "connections": { "ec4bdb4f-3c3e-4405-af80-2ad7ab3d57fc": { "main": [ [ { "node": "error-handler-ec4bdb4f-3c3e-4405-af80-2ad7ab3d57fc", "type": "main", "index": 0 } ], [ { "node": "error-handler-ec4bdb4f-3c3e-4405-af80-2ad7ab3d57fc-4347cd91", "type": "main", "index": 0 } ], [ { "node": "error-handler-ec4bdb4f-3c3e-4405-af80-2ad7ab3d57fc-355bf6a9", "type": "main", "index": 0 } ], [ { "node": "error-handler-ec4bdb4f-3c3e-4405-af80-2ad7ab3d57fc-e8c5ab7c", "type": "main", "index": 0 } ], [ { "node": "error-handler-ec4bdb4f-3c3e-4405-af80-2ad7ab3d57fc-35f4c100", "type": "main", "index": 0 } ] ] }, "1b6c9f8c-1b5b-499d-abb5-bb1059b73ce7": { "main": [ [ { "node": "error-handler-1b6c9f8c-1b5b-499d-abb5-bb1059b73ce7", "type": "main", "index": 0 } ], [ { "node": "error-handler-1b6c9f8c-1b5b-499d-abb5-bb1059b73ce7-1dc10838", "type": "main", "index": 0 } ], [ { "node": "error-handler-1b6c9f8c-1b5b-499d-abb5-bb1059b73ce7-4e7815a1", "type": "main", "index": 0 } ], [ { "node": "error-handler-1b6c9f8c-1b5b-499d-abb5-bb1059b73ce7-3ccb2242", "type": "main", "index": 0 } ], [ { "node": "error-handler-1b6c9f8c-1b5b-499d-abb5-bb1059b73ce7-fcbe8612", "type": "main", "index": 0 } ] ] }, "5e74ba50-e0fe-41e0-9b84-7078f1d150a3": { "main": [ [ { "node": "error-handler-5e74ba50-e0fe-41e0-9b84-7078f1d150a3", "type": "main", "index": 0 } ], [ { "node": "error-handler-5e74ba50-e0fe-41e0-9b84-7078f1d150a3-176eacb5", "type": "main", "index": 0 } ], [ { "node": "error-handler-5e74ba50-e0fe-41e0-9b84-7078f1d150a3-e9eac00f", "type": "main", "index": 0 } ], [ { "node": "error-handler-5e74ba50-e0fe-41e0-9b84-7078f1d150a3-e1e9e43d", "type": "main", "index": 0 } ], [ { "node": "error-handler-5e74ba50-e0fe-41e0-9b84-7078f1d150a3-59a02086", "type": "main", "index": 0 } ] ] } }, "description": "Automated workflow: Validate Seatable Webhooks with HMAC SHA256 Authentication. This workflow integrates 7 different services: webhook, stickyNote, respondToWebhook, stopAndError, if. It contains 13 nodes and follows best practices for error handling and security.", "notes": "Excellent quality workflow: Validate Seatable Webhooks with HMAC SHA256 Authentication. This workflow has been optimized for production use with comprehensive error handling, security, and documentation." }