{
  "name": "Validate Seatable Webhooks with HMAC SHA256 Authentication",
  "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
    },
    {
      "id": "1b6c9f8c-1b5b-499d-abb5-bb1059b73ce7",
      "name": "403",
      "type": "n8n-nodes-base.respondToWebhook",
      "position": [
        420,
        180
      ],
      "parameters": {
        "options": {
          "responseCode": 403
        },
        "respondWith": "noData"
      },
      "typeVersion": 1
    },
    {
      "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
    },
    {
      "id": "5e74ba50-e0fe-41e0-9b84-7078f1d150a3",
      "name": "Seatable Webhook",
      "type": "n8n-nodes-base.webhook",
      "position": [
        -240,
        -20
      ],
      "parameters": {
        "path": "s0m3-d4nd0m-1d",
        "options": {
          "rawBody": true
        },
        "httpMethod": "POST",
        "responseMode": "responseNode"
      },
      "typeVersion": 1
    },
    {
      "id": "dbfcc59f-5411-4d99-8cde-26ae91cdd6af",
      "name": "Add nodes for processing",
      "type": "n8n-nodes-base.noOp",
      "position": [
        420,
        -220
      ],
      "parameters": {},
      "typeVersion": 1
    },
    {
      "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
    },
    {
      "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
    },
    {
      "id": "1d06b23a-79d1-5238-8fbb-0697d8fb6d7e",
      "name": "Publication · Overview and setup",
      "type": "n8n-nodes-base.stickyNote",
      "typeVersion": 1,
      "position": [
        -1200,
        -660
      ],
      "parameters": {
        "content": "# Validate Seatable Webhooks with HMAC SHA256 Authentication\n\n## Purpose and structure\nThis folder contains the **Validate Seatable Webhooks with HMAC SHA256 Authentication** workflow. Its executable nodes use `crypto`, `if`, `noOp`, `respondToWebhook`, `webhook`. The table and connection map below are derived from the JSON, not an inferred guarantee of behavior.\n\n## Setup\nImport inactive. Configure your own credentials and replace REPLACE_WITH_* values. Review external destinations and Code nodes before running.\n\n## Entry points\nSeatable Webhook\n\n## Verification\nSanitized source candidate; not runtime-tested. This overview is generated from node metadata. Read the folder README for the connection map, credential types, and license.\n\n## Attribution\nhttps://github.com/Zie619/n8n-workflows/blob/94007c1445d9258a7da116646b79473e7c7c3282/workflows/Webhook/1740_Webhook_Respondtowebhook_Automation_Webhook.json\nMIT; preserve source notices.",
        "width": 700,
        "height": 800,
        "color": 1
      }
    }
  ],
  "active": false,
  "settings": {
    "executionOrder": "v1"
  },
  "connections": {
    "hash matches": {
      "main": [
        [
          {
            "node": "200",
            "type": "main",
            "index": 0
          },
          {
            "node": "Add nodes for processing",
            "type": "main",
            "index": 0
          }
        ],
        [
          {
            "node": "403",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Calculate sha256": {
      "main": [
        [
          {
            "node": "hash matches",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Seatable Webhook": {
      "main": [
        [
          {
            "node": "Calculate sha256",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  }
}