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": "Post Message to Slack",
"nodes": [
{
"parameters": {
"authentication": "oAuth2",
"select": "channel",
"channelId": {
"__rl": true,
"value": "C083QQBQTAM",
"mode": "list",
"cachedResultName": "flowise-n8n"
},
"text": "={{ $json.body.message }}",
"otherOptions": {
"includeLinkToWorkflow": false
}
},
"id": "4882859e-bf35-475b-9fd2-a068ac4fc602",
"name": "Slack",
"type": "n8n-nodes-base.slack",
"typeVersion": 2.2,
"position": [
1040,
360
],
"credentials": {
"slackOAuth2Api": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"options": {}
},
"id": "a9e7aa8a-04ba-4dc6-8a14-f2c435df4ad8",
"name": "Respond to Webhook",
"type": "n8n-nodes-base.respondToWebhook",
"typeVersion": 1.1,
"position": [
1260,
360
]
},
{
"parameters": {
"httpMethod": "POST",
"path": "f17f77e5-51dc-4589-8b51-4c8adc23c3c0",
"authentication": "headerAuth",
"responseMode": "responseNode",
"options": {}
},
"id": "db4d3557-e423-43e9-8f0c-b4309f304567",
"name": "Webhook",
"type": "n8n-nodes-base.webhook",
"typeVersion": 2,
"position": [
820,
360
],
"credentials": {
"httpHeaderAuth": {
"name": "<your credential>"
}
}
}
],
"connections": {
"Slack": {
"main": [
[
{
"node": "Respond to Webhook",
"type": "main",
"index": 0
}
]
]
},
"Webhook": {
"main": [
[
{
"node": "Slack",
"type": "main",
"index": 0
}
]
]
}
},
"active": true,
"settings": {
"executionOrder": "v1"
},
"versionId": "74bd88b9-5eb7-4a1a-8bc3-be2636a3639c",
"meta": {
"templateCredsSetupCompleted": true
},
"id": "dBTFcNDVqjuQ619T",
"tags": []
}
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.
httpHeaderAuthslackOAuth2Api
About this workflow
Post Message to Slack. Uses slack, respondToWebhook. Webhook trigger; 3 nodes.
Source: https://github.com/daboi2331/ai-agents-masterclass/blob/main/local-ai-packaged/n8n-tool-workflows/Post_Message_to_Slack.json — original creator credit. Request a take-down →