Sub 002 Dead Letter Queue

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 →

{
  "id": "sub002-dead-letter-queue-0000000",
  "name": "SUB-002-dead-letter-queue",
  "nodes": [
    {
      "parameters": {
        "inputSource": "passthrough"
      },
      "id": "c1000000-0002-0002-0002-000000000001",
      "name": "Trigger",
      "type": "n8n-nodes-base.executeWorkflowTrigger",
      "typeVersion": 1.1,
      "position": [
        240,
        500
      ]
    },
    {
      "parameters": {
        "operation": "executeQuery",
        "query": "={{ `INSERT INTO errors (workflow_name, execution_id, node_name, error_type, error_message, payload, resolved, created_at) VALUES ('${($json.workflow_name||'').replace(/'/g,\"''\")}', '${($json.execution_id||'').replace(/'/g,\"''\")}', '${($json.node_name||'').replace(/'/g,\"''\")}', '${($json.error_type||'').replace(/'/g,\"''\")}', '${($json.error_message||'').replace(/'/g,\"''\")}', '${JSON.stringify($json.payload||{}).replace(/'/g,\"''\")}', false, NOW()) RETURNING id` }}",
        "options": {}
      },
      "id": "c1000000-0002-0002-0002-000000000002",
      "name": "Insert Error",
      "type": "n8n-nodes-base.postgres",
      "typeVersion": 2.5,
      "position": [
        460,
        500
      ],
      "credentials": {
        "postgres": {
          "name": "<your credential>"
        }
      }
    },
    {
      "parameters": {
        "assignments": {
          "assignments": [
            {
              "id": "c1000000-0002-0002-0002-000000000010",
              "name": "error_id",
              "value": "={{ $json.id }}",
              "type": "number"
            },
            {
              "id": "c1000000-0002-0002-0002-000000000011",
              "name": "message",
              "value": "={{ (() => { const esc = s => String(s == null ? '' : s).replace(/_/g, ' ').replace(/[*`\\[]/g, ''); return `\ud83d\udea8 *WORKFLOW ERROR*\\nWorkflow: ${esc($('Trigger').item.json.workflow_name)}\\nNode: ${esc($('Trigger').item.json.node_name)}\\nError: ${esc($('Trigger').item.json.error_message)}\\nTime: ${new Date().toISOString()}`; })() }}",
              "type": "string"
            },
            {
              "id": "c1000000-0002-0002-0002-000000000012",
              "name": "parse_mode",
              "value": "Markdown",
              "type": "string"
            },
            {
              "id": "c1000000-0002-0002-0002-000000000013",
              "name": "inline_keyboard",
              "value": "=[]",
              "type": "array"
            }
          ]
        },
        "options": {}
      },
      "id": "c1000000-0002-0002-0002-000000000003",
      "name": "Prepare Alert",
      "type": "n8n-nodes-base.set",
      "typeVersion": 3.4,
      "position": [
        680,
        500
      ]
    },
    {
      "parameters": {
        "workflowId": {
          "__rl": true,
          "value": "sub003-telegram-notification-000000",
          "mode": "id"
        },
        "options": {}
      },
      "id": "c1000000-0002-0002-0002-000000000004",
      "name": "Notify via SUB-003",
      "type": "n8n-nodes-base.executeWorkflow",
      "typeVersion": 1.1,
      "position": [
        900,
        500
      ]
    },
    {
      "parameters": {
        "assignments": {
          "assignments": [
            {
              "id": "c1000000-0002-0002-0002-000000000020",
              "name": "error_id",
              "value": "={{ $('Prepare Alert').item.json.error_id }}",
              "type": "number"
            }
          ]
        },
        "options": {}
      },
      "id": "c1000000-0002-0002-0002-000000000005",
      "name": "Return",
      "type": "n8n-nodes-base.set",
      "typeVersion": 3.4,
      "position": [
        1120,
        500
      ]
    }
  ],
  "connections": {
    "Trigger": {
      "main": [
        [
          {
            "node": "Insert Error",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Insert Error": {
      "main": [
        [
          {
            "node": "Prepare Alert",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Prepare Alert": {
      "main": [
        [
          {
            "node": "Notify via SUB-003",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Notify via SUB-003": {
      "main": [
        [
          {
            "node": "Return",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  },
  "settings": {
    "executionOrder": "v1"
  }
}

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.

• postgres

About this workflow

SUB-002-dead-letter-queue. Uses executeWorkflowTrigger, postgres. Event-driven trigger; 5 nodes.

Source: https://github.com/navin-labs/content-factory-os/blob/main/n8n/workflows/subworkflows/SUB-002-dead-letter-queue.json — original creator credit. Request a take-down →

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