Pawel This workflow corresponds to n8n.io template #16300 — we link there as the canonical source.
The workflow JSON
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{
"name": "Auto-reply to Instagram and Facebook comments with a public reply and DM",
"nodes": [
{
"id": "webhook",
"name": "Webhook (Meta)",
"type": "n8n-nodes-base.webhook",
"onError": "continueRegularOutput",
"position": [
0,
400
],
"parameters": {
"path": "meta-auto-reply",
"options": {},
"responseMode": "responseNode",
"multipleMethods": true
},
"typeVersion": 2.1
},
{
"id": "config",
"name": "Configuration (EDIT ME)",
"type": "n8n-nodes-base.set",
"position": [
300,
400
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "c1",
"name": "access_token",
"type": "string",
"value": "PASTE_YOUR_ACCESS_TOKEN_HERE"
},
{
"id": "c2",
"name": "verify_token",
"type": "string",
"value": "my-secret-token-123"
},
{
"id": "c3",
"name": "keyword",
"type": "string",
"value": ""
},
{
"id": "c4",
"name": "comment_reply",
"type": "string",
"value": "Thanks for the comment! \ud83d\ude4c Check your DMs \ud83d\udce9"
},
{
"id": "c5",
"name": "dm_message",
"type": "string",
"value": "Hey! Thanks for commenting. Here's the link I promised: https://your-website.com \ud83d\ude80"
},
{
"id": "c6",
"name": "api_version",
"type": "string",
"value": "23.0"
}
]
},
"includeOtherFields": true
},
"typeVersion": 3.4
},
{
"id": "verify",
"name": "Meta Verification?",
"type": "n8n-nodes-base.if",
"position": [
600,
400
],
"parameters": {
"options": {},
"conditions": {
"options": {
"version": 2,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "loose"
},
"combinator": "and",
"conditions": [
{
"id": "is-subscribe",
"operator": {
"type": "string",
"operation": "equals"
},
"leftValue": "={{ $json.query ? ($json.query['hub.mode'] || '') : '' }}",
"rightValue": "subscribe"
},
{
"id": "token-matches",
"operator": {
"type": "string",
"operation": "equals"
},
"leftValue": "={{ $json.query ? ($json.query['hub.verify_token'] || '') : '' }}",
"rightValue": "={{ $json.verify_token }}"
}
]
},
"looseTypeValidation": true
},
"typeVersion": 2.2
},
{
"id": "respond-challenge",
"name": "Respond hub.challenge",
"type": "n8n-nodes-base.respondToWebhook",
"position": [
900,
240
],
"parameters": {
"options": {},
"respondWith": "text",
"responseBody": "={{ $json.query['hub.challenge'] }}"
},
"typeVersion": 1.4
},
{
"id": "respond-200",
"name": "Respond 200 OK",
"type": "n8n-nodes-base.respondToWebhook",
"position": [
900,
400
],
"parameters": {
"options": {
"responseCode": 200
},
"respondWith": "noData"
},
"typeVersion": 1.4
},
{
"id": "extract",
"name": "Extract Comment",
"type": "n8n-nodes-base.code",
"position": [
1200,
400
],
"parameters": {
"jsCode": "// Extracts IG/FB comments from the Meta webhook payload and builds\n// ready-to-use Graph API requests (public reply + private DM).\n// Skips: own comments (echo / auto-replies) and comments that don't\n// match the keyword filter (if set).\nconst item = $input.first().json;\nconst body = item.body || {};\nif (!body.entry || (body.object !== 'instagram' && body.object !== 'page')) return [];\n\nconst normalize = (t) => (t || '').toLowerCase().trim().replace(/\\s+/g, '');\nconst keyword = normalize(item.keyword);\nconst out = [];\n\nfor (const entry of body.entry) {\n const accountId = String(entry.id);\n for (const change of entry.changes || []) {\n const v = change.value || {};\n let commentId, text, fromId, fromName, platform;\n\n if (body.object === 'instagram' && change.field === 'comments') {\n platform = 'instagram';\n commentId = v.id;\n text = v.text || '';\n fromId = v.from && v.from.id;\n fromName = (v.from && v.from.username) || '';\n } else if (body.object === 'page' && change.field === 'feed' && v.item === 'comment' && v.verb === 'add') {\n platform = 'facebook';\n commentId = v.comment_id;\n text = v.message || '';\n fromId = v.from && v.from.id;\n fromName = (v.from && v.from.name) || '';\n } else {\n continue; // other events (DMs, likes, stories etc.) are ignored\n }\n\n if (!commentId || !fromId) continue;\n if (String(fromId) === accountId) continue; // own comment -> loop protection\n if (keyword && !normalize(text).includes(keyword)) continue;\n\n const host = platform === 'instagram' ? 'graph.instagram.com' : 'graph.facebook.com';\n const base = `https://${host}/v${item.api_version}`;\n\n const replyText = item.comment_reply || '';\n const dmText = item.dm_message || '';\n\n out.push({\n json: {\n platform,\n account_id: accountId,\n comment_id: commentId,\n comment_text: text,\n from_id: String(fromId),\n from_name: fromName,\n // ready-to-use request: public reply under the comment\n reply_url: replyText\n ? (platform === 'instagram' ? `${base}/${commentId}/replies` : `${base}/${commentId}/comments`)\n : '',\n reply_payload: { message: replyText },\n // ready-to-use request: private message (private reply)\n dm_url: dmText ? `${base}/${accountId}/messages` : '',\n dm_payload: { recipient: { comment_id: commentId }, message: { text: dmText } },\n },\n });\n }\n}\nreturn out;"
},
"typeVersion": 2
},
{
"id": "if-comment",
"name": "Send Public Reply?",
"type": "n8n-nodes-base.if",
"position": [
1500,
240
],
"parameters": {
"options": {},
"conditions": {
"options": {
"version": 2,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "loose"
},
"combinator": "and",
"conditions": [
{
"id": "has-if-comment",
"operator": {
"type": "string",
"operation": "notEmpty",
"singleValue": true
},
"leftValue": "={{ $json.reply_url }}",
"rightValue": ""
}
]
},
"looseTypeValidation": true
},
"typeVersion": 2.2
},
{
"id": "if-dm",
"name": "Send DM?",
"type": "n8n-nodes-base.if",
"position": [
1500,
560
],
"parameters": {
"options": {},
"conditions": {
"options": {
"version": 2,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "loose"
},
"combinator": "and",
"conditions": [
{
"id": "has-if-dm",
"operator": {
"type": "string",
"operation": "notEmpty",
"singleValue": true
},
"leftValue": "={{ $json.dm_url }}",
"rightValue": ""
}
]
},
"looseTypeValidation": true
},
"typeVersion": 2.2
},
{
"id": "http-comment",
"name": "Reply to Comment",
"type": "n8n-nodes-base.httpRequest",
"onError": "continueRegularOutput",
"position": [
1800,
240
],
"parameters": {
"url": "={{ $json.reply_url }}",
"method": "POST",
"options": {},
"jsonBody": "={{ $json.reply_payload }}",
"sendBody": true,
"sendHeaders": true,
"specifyBody": "json",
"headerParameters": {
"parameters": [
{
"name": "Authorization",
"value": "=Bearer {{ $('Configuration (EDIT ME)').first().json.access_token }}"
}
]
}
},
"typeVersion": 4.3
},
{
"id": "http-dm",
"name": "Send DM (private reply)",
"type": "n8n-nodes-base.httpRequest",
"onError": "continueRegularOutput",
"position": [
1800,
560
],
"parameters": {
"url": "={{ $json.dm_url }}",
"method": "POST",
"options": {},
"jsonBody": "={{ $json.dm_payload }}",
"sendBody": true,
"sendHeaders": true,
"specifyBody": "json",
"headerParameters": {
"parameters": [
{
"name": "Authorization",
"value": "=Bearer {{ $('Configuration (EDIT ME)').first().json.access_token }}"
}
]
}
},
"typeVersion": 4.3
},
{
"id": "Sticky Note",
"name": "Sticky Note",
"type": "n8n-nodes-base.stickyNote",
"position": [
-60,
-500
],
"parameters": {
"color": 1,
"width": 600,
"height": 600,
"content": "## Auto-Reply to Instagram & Facebook Comments\n\nAutomatically reply under new Instagram or Facebook comments and send the commenter a private DM \u2014 no database, no queue, no third-party tool like ManyChat.\n\n### How it works\n- A **webhook** receives comment events from the Meta Graph API and answers Meta's verification handshake.\n- The workflow responds `200 OK` immediately, then parses the event, skips your own comments (loop protection) and any comment that does not match your optional keyword.\n- It posts a public reply under the comment and sends a private message, each via the Meta Graph API.\n\n### Setup\n1. Open **Configuration (EDIT ME)** and fill in your `access_token`, a `verify_token` of your choice, an optional `keyword`, and your reply + DM text.\n2. Activate the workflow and copy the **Production URL** from the *Webhook (Meta)* node.\n3. In your Meta app, add it as a webhook with the same `verify_token` and subscribe to `comments` (Instagram) and/or `feed` (Facebook Page). The app must be in **Live** mode.\n\n### Customization tips\nLeave the reply or DM text empty to skip that step. Set a keyword to trigger only on matching comments.\n"
},
"typeVersion": 1
},
{
"id": "Sticky Note1",
"name": "Sticky Note1",
"type": "n8n-nodes-base.stickyNote",
"position": [
-60,
160
],
"parameters": {
"color": 7,
"width": 1140,
"height": 420,
"content": "## 1. Receive & verify the webhook\nMeta sends comment events here. The IF answers Meta's one-time verification (hub.challenge); every real event gets an immediate 200 OK. Add your tokens and reply text in **Configuration (EDIT ME)**.\n"
},
"typeVersion": 1
},
{
"id": "Sticky Note2",
"name": "Sticky Note2",
"type": "n8n-nodes-base.stickyNote",
"position": [
1140,
160
],
"parameters": {
"color": 7,
"width": 860,
"height": 580,
"content": "## 2. Reply to the comment & send a DM\nParses the comment, skips your own (loop protection) and non-matching keywords, then posts a public reply and a private DM through the Meta Graph API.\n"
},
"typeVersion": 1
}
],
"settings": {
"executionOrder": "v1"
},
"connections": {
"Send DM?": {
"main": [
[
{
"node": "Send DM (private reply)",
"type": "main",
"index": 0
}
],
[]
]
},
"Respond 200 OK": {
"main": [
[
{
"node": "Extract Comment",
"type": "main",
"index": 0
}
]
]
},
"Webhook (Meta)": {
"main": [
[
{
"node": "Configuration (EDIT ME)",
"type": "main",
"index": 0
}
],
[
{
"node": "Configuration (EDIT ME)",
"type": "main",
"index": 0
}
]
]
},
"Extract Comment": {
"main": [
[
{
"node": "Send Public Reply?",
"type": "main",
"index": 0
},
{
"node": "Send DM?",
"type": "main",
"index": 0
}
]
]
},
"Meta Verification?": {
"main": [
[
{
"node": "Respond hub.challenge",
"type": "main",
"index": 0
}
],
[
{
"node": "Respond 200 OK",
"type": "main",
"index": 0
}
]
]
},
"Send Public Reply?": {
"main": [
[
{
"node": "Reply to Comment",
"type": "main",
"index": 0
}
],
[]
]
},
"Configuration (EDIT ME)": {
"main": [
[
{
"node": "Meta Verification?",
"type": "main",
"index": 0
}
]
]
}
}
}
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About this workflow
This workflow receives Meta webhooks for Instagram and Facebook Page comments, verifies the webhook subscription handshake, and then posts an optional public reply and/or sends a private DM to the commenter via the Meta Graph API. Receives an incoming webhook request from Meta…
Source: https://n8n.io/workflows/16300/ — original creator credit. Request a take-down →
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