Verify Webhook HMAC and Update Config

The workflow JSON

Copy or download the full n8n JSON below. Paste it into a new n8n workflow, add your credentials, activate. Full import guide →

{
  "_status": "future",
  "_note": "Deferred to future milestone. Do not import into n8n.",
  "id": "config-update",
  "name": "[FUTURE] config-update",
  "nodes": [
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "config-update",
        "responseMode": "responseNode",
        "options": {}
      },
      "id": "webhook-trigger",
      "name": "Webhook",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 2,
      "position": [
        240,
        300
      ]
    },
    {
      "parameters": {
        "workflowId": "hmac-verify",
        "options": {},
        "workflowInputs": {
          "value": {
            "headers": "={{ $json.headers }}",
            "body": "={{ $json.body }}",
            "rawBody": "={{ $json.body ? JSON.stringify($json.body) : '' }}"
          }
        }
      },
      "id": "hmac-check",
      "name": "HMAC Verify",
      "type": "n8n-nodes-base.executeWorkflow",
      "typeVersion": 1,
      "position": [
        460,
        300
      ]
    },
    {
      "parameters": {
        "conditions": {
          "options": {
            "caseSensitive": true,
            "leftValue": "",
            "typeValidation": "strict"
          },
          "conditions": [
            {
              "id": "d5f8e6ad-66f4-447c-8d96-db76b7029d37",
              "leftValue": "={{ $json.verified }}",
              "rightValue": true,
              "operator": {
                "type": "boolean",
                "operation": "true"
              }
            }
          ],
          "combinator": "and"
        }
      },
      "id": "if-verified",
      "name": "Is Verified?",
      "type": "n8n-nodes-base.if",
      "typeVersion": 2,
      "position": [
        680,
        300
      ]
    },
    {
      "parameters": {
        "jsCode": "// STUB: Replace with n8n internal API calls to update variables when ready.\n// T051: Update n8n workflow variables via internal API\n// Real version would call PUT /api/v1/variables for each key\n\nconst body = $input.all()[0].json.body;\nconst variables = body?.variables || {};\nconst changedKeys = Object.keys(variables);\n\nif (changedKeys.length === 0) {\n  return [{\n    json: {\n      status: 'no_changes',\n      variables_changed: []\n    }\n  }];\n}\n\nreturn [{\n  json: {\n    status: 'updated',\n    variables_changed: changedKeys\n  }\n}];"
      },
      "id": "config-update-stub",
      "name": "Update Config",
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "position": [
        900,
        300
      ],
      "notes": "STUB: Replace with n8n internal API calls to update variables when ready."
    },
    {
      "parameters": {
        "respondWith": "json",
        "responseBody": "={{ JSON.stringify($json) }}",
        "options": {
          "responseCode": 200
        }
      },
      "id": "respond-success",
      "name": "Respond Success",
      "type": "n8n-nodes-base.respondToWebhook",
      "typeVersion": 1,
      "position": [
        1120,
        300
      ]
    },
    {
      "parameters": {
        "respondWith": "json",
        "responseBody": "={{ JSON.stringify({ error: 'Unauthorized', details: $json.error }) }}",
        "options": {
          "responseCode": 401
        }
      },
      "id": "respond-401",
      "name": "Reject 401",
      "type": "n8n-nodes-base.respondToWebhook",
      "typeVersion": 1,
      "position": [
        900,
        460
      ]
    }
  ],
  "connections": {
    "Webhook": {
      "main": [
        [
          {
            "node": "HMAC Verify",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "HMAC Verify": {
      "main": [
        [
          {
            "node": "Is Verified?",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Is Verified?": {
      "main": [
        [
          {
            "node": "Update Config",
            "type": "main",
            "index": 0
          }
        ],
        [
          {
            "node": "Reject 401",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Update Config": {
      "main": [
        [
          {
            "node": "Respond Success",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  },
  "settings": {
    "executionOrder": "v1"
  },
  "staticData": null,
  "meta": {
    "notes": "T051: Configuration update workflow. Receives variable key-value pairs from OpenClaw, verifies HMAC, updates n8n variables via internal API (currently stubbed), returns list of changed keys."
  }
}

About this workflow

[FUTURE] config-update. Webhook trigger; 6 nodes.

Source: https://github.com/traylorre/openclaw-mac/blob/d5ef2bd70e230b1877d7165d35c2e27947b269e0/workflows/config-update.json — original creator credit. Request a take-down →

More General workflows → · Browse all categories →

Related workflows

Workflows that share integrations, category, or trigger type with this one. All free to copy and import.