Modellogue Chat to Slack

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": "modellogue-chat-to-slack",
  "nodes": [
    {
      "parameters": {
        "httpMethod": "POST",
        "path": "chat-to-slack",
        "responseMode": "responseNode",
        "options": {}
      },
      "type": "n8n-nodes-base.webhook",
      "typeVersion": 2.1,
      "position": [
        400,
        300
      ],
      "id": "9b2a14a0-0002-0001-0001-000000000001",
      "name": "Webhook POST chat-to-slack",
      "notes": "POST /webhook/chat-to-slack with body {source: 'facilitator'|'ai', text}. ModelLogue's chatStore invokes this fire-and-forget on facilitator turns and AI replies (SR-132)."
    },
    {
      "parameters": {
        "jsCode": "// SR-132 write-direction prefix.\n// Decorates the relayed text with [facilitator] / [AI] so Slack\n// readers can tell who is speaking. Validates the source field;\n// unknown values are rejected with an error so an upstream typo\n// shows up at smoke time rather than as silently-mislabelled\n// posts in Slack.\nconst body = $json.body || {};\nconst source = body.source;\nconst text = body.text;\n\nif (typeof text !== 'string' || text === '') {\n  throw new Error('chat-to-slack: missing or empty text');\n}\nlet prefix;\nif (source === 'facilitator') prefix = '[facilitator] ';\nelse if (source === 'ai') prefix = '[AI] ';\nelse throw new Error('chat-to-slack: invalid source ' + JSON.stringify(source));\n\nreturn [{ json: { decoratedText: prefix + text } }];"
      },
      "type": "n8n-nodes-base.code",
      "typeVersion": 2,
      "position": [
        620,
        300
      ],
      "id": "9b2a14a0-0002-0001-0001-000000000002",
      "name": "Prefix Source"
    },
    {
      "parameters": {
        "resource": "message",
        "operation": "post",
        "select": "channel",
        "channelId": {
          "__rl": true,
          "mode": "id",
          "value": "={{ $env.SLACK_RELAY_CHANNEL_ID }}"
        },
        "text": "={{ $json.decoratedText }}",
        "otherOptions": {}
      },
      "type": "n8n-nodes-base.slack",
      "typeVersion": 2.3,
      "position": [
        840,
        300
      ],
      "id": "9b2a14a0-0002-0001-0001-000000000003",
      "name": "Slack Post Message",
      "credentials": {
        "slackApi": {
          "name": "<your credential>"
        }
      },
      "notes": "Posts to the channel given by SLACK_RELAY_CHANNEL_ID. Bot Scope required: chat:write. Bot must already be a member of the channel."
    },
    {
      "parameters": {
        "respondWith": "noData",
        "options": {
          "responseCode": 204,
          "responseHeaders": {
            "entries": [
              {
                "name": "Access-Control-Allow-Origin",
                "value": "*"
              },
              {
                "name": "Access-Control-Allow-Methods",
                "value": "POST, OPTIONS"
              },
              {
                "name": "Access-Control-Allow-Headers",
                "value": "Content-Type"
              }
            ]
          }
        }
      },
      "type": "n8n-nodes-base.respondToWebhook",
      "typeVersion": 1.5,
      "position": [
        1060,
        300
      ],
      "id": "9b2a14a0-0002-0001-0001-000000000004",
      "name": "Respond 204"
    }
  ],
  "connections": {
    "Webhook POST chat-to-slack": {
      "main": [
        [
          {
            "node": "Prefix Source",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Prefix Source": {
      "main": [
        [
          {
            "node": "Slack Post Message",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Slack Post Message": {
      "main": [
        [
          {
            "node": "Respond 204",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  },
  "active": false,
  "settings": {
    "executionOrder": "v1"
  },
  "tags": [
    "modellogue",
    "slack-relay",
    "ur-017"
  ]
}

Credentials you'll need

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• slackApi

About this workflow

modellogue-chat-to-slack. Uses slack. Webhook trigger; 4 nodes.

Source: https://github.com/sho1884/ModelLogue/blob/206db72223bccda9c5e31c5e92548c235cd28bf8/n8n/workflows/modellogue-chat-to-slack.json — original creator credit. Request a take-down →

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