Verify Receipt on Webhook with Slack Alert (signatrust)

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 →

{
  "name": "Verify Receipt on Webhook with Slack Alert (Signatrust)",
  "nodes": [
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "verify-and-alert",
        "options": {},
        "responseMode": "responseNode"
      },
      "id": "23532931-c82e-407e-a9f7-ffc2d50563cc",
      "name": "Inbound Receipt",
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 2.1,
      "position": [
        0,
        300
      ]
    },
    {
      "parameters": {
        "operation": "verifyReceipt",
        "receiptId": "={{ $json.body.receipt_id }}"
      },
      "id": "158f816a-c182-4c1b-9f3b-dbd09134711e",
      "name": "Signatrust: Verify",
      "type": "n8n-nodes-signatrust.signatrust",
      "typeVersion": 1,
      "position": [
        220,
        300
      ],
      "credentials": {
        "signatrustApi": {
          "name": "<your credential>"
        }
      }
    },
    {
      "parameters": {
        "conditions": {
          "options": {
            "caseSensitive": true,
            "leftValue": "",
            "typeValidation": "loose"
          },
          "conditions": [
            {
              "id": "c4525dbf-623c-4054-b043-f660b50e39c1",
              "leftValue": "={{ $json.valid }}",
              "rightValue": "true",
              "operator": {
                "type": "boolean",
                "operation": "true"
              }
            }
          ],
          "combinator": "and"
        },
        "options": {}
      },
      "id": "688461ef-3bf6-4127-a0dc-9e99484b82b1",
      "name": "IF Valid",
      "type": "n8n-nodes-base.if",
      "typeVersion": 2.2,
      "position": [
        440,
        300
      ]
    },
    {
      "parameters": {
        "select": "channel",
        "channelId": {
          "__rl": true,
          "mode": "name",
          "value": "#audit"
        },
        "text": "={{ 'Receipt ' + $('Inbound Receipt').item.json.body.receipt_id + ' is VALID' }}",
        "otherOptions": {}
      },
      "id": "8a756b2e-d202-45f8-9688-45a59054f88e",
      "name": "Slack: Valid",
      "type": "n8n-nodes-base.slack",
      "typeVersion": 2.3,
      "position": [
        660,
        200
      ],
      "credentials": {
        "slackApi": {
          "name": "<your credential>"
        }
      }
    },
    {
      "parameters": {
        "select": "channel",
        "channelId": {
          "__rl": true,
          "mode": "name",
          "value": "#audit"
        },
        "text": "={{ '\u26a0 Receipt ' + $('Inbound Receipt').item.json.body.receipt_id + ' FAILED verification' }}",
        "otherOptions": {}
      },
      "id": "a810da6a-ddbb-40e7-bff8-f09cdd43cd3e",
      "name": "Slack: INVALID",
      "type": "n8n-nodes-base.slack",
      "typeVersion": 2.3,
      "position": [
        660,
        440
      ],
      "credentials": {
        "slackApi": {
          "name": "<your credential>"
        }
      }
    },
    {
      "parameters": {
        "content": "## Verify-on-Webhook + Alert\nWhenever a receipt is submitted, verify it and post the result to Slack. Turns Signatrust verification into a real-time integrity monitor.",
        "height": 180,
        "width": 430,
        "color": 6
      },
      "id": "513186b5-f32e-42ca-9322-15f334d7ef46",
      "name": "Sticky Note 192cfe",
      "type": "n8n-nodes-base.stickyNote",
      "typeVersion": 1,
      "position": [
        -40,
        30
      ]
    }
  ],
  "connections": {
    "Inbound Receipt": {
      "main": [
        [
          {
            "node": "Signatrust: Verify",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Signatrust: Verify": {
      "main": [
        [
          {
            "node": "IF Valid",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "IF Valid": {
      "main": [
        [
          {
            "node": "Slack: Valid",
            "type": "main",
            "index": 0
          }
        ],
        [
          {
            "node": "Slack: INVALID",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  },
  "active": false,
  "settings": {
    "executionOrder": "v1"
  },
  "tags": [
    {
      "name": "Verify Receipt on Webhook \u2014 Verification"
    },
    {
      "name": "Verify Receipt on Webhook \u2014 Monitoring"
    },
    {
      "name": "Signatrust (24)"
    }
  ],
  "meta": {
    "templateCredsSetupCompleted": false
  },
  "versionId": "ec44e34b-38ad-4fe8-9641-5bdcb8994f07"
}

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.

• signatrustApi
• slackApi

About this workflow

Verify Receipt on Webhook with Slack Alert (Signatrust). Uses n8n-nodes-signatrust, slack. Webhook trigger; 6 nodes.

Source: https://github.com/abokenan444/n8n-signatrust-workflows/blob/main/workflows/24-receipt-verify-on-webhook.json — original creator credit. Request a take-down →

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