The workflow JSON
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{
"name": "Auto-reply to incoming WhatsApp messages with WWebJS API",
"nodes": [
{
"id": "a1b2c3d4-0001-4000-8000-000000000001",
"name": "WhatsApp Message Received",
"type": "n8n-nodes-wwebjs-api.wWebJsApiTrigger",
"position": [
260,
300
],
"parameters": {
"events": [
"message"
],
"authentication": "none",
"filters": {
"excludeFromMe": true,
"individualsOnly": true
}
},
"typeVersion": 1
},
{
"id": "a1b2c3d4-0002-4000-8000-000000000002",
"name": "Extract Message Data",
"type": "n8n-nodes-base.set",
"position": [
500,
300
],
"parameters": {
"mode": "manual",
"duplicateItem": false,
"assignments": {
"assignments": [
{
"id": "field-chatId",
"name": "chatId",
"value": "={{ $json.data.from }}",
"type": "string"
},
{
"id": "field-body",
"name": "messageBody",
"value": "={{ $json.data.body }}",
"type": "string"
},
{
"id": "field-senderName",
"name": "senderName",
"value": "={{ $json.data.notifyName || $json.data.from }}",
"type": "string"
},
{
"id": "field-sessionId",
"name": "sessionId",
"value": "={{ $json.sessionId }}",
"type": "string"
}
]
},
"options": {}
},
"typeVersion": 3.4
},
{
"id": "a1b2c3d4-0003-4000-8000-000000000003",
"name": "Check Message Content",
"type": "n8n-nodes-base.switch",
"position": [
740,
300
],
"parameters": {
"rules": {
"values": [
{
"outputKey": "greeting",
"conditions": {
"options": {
"version": 2,
"caseSensitive": false,
"typeValidation": "loose"
},
"combinator": "or",
"conditions": [
{
"operator": {
"type": "string",
"operation": "contains"
},
"leftValue": "={{ $json.messageBody }}",
"rightValue": "hello"
},
{
"operator": {
"type": "string",
"operation": "contains"
},
"leftValue": "={{ $json.messageBody }}",
"rightValue": "hi"
},
{
"operator": {
"type": "string",
"operation": "contains"
},
"leftValue": "={{ $json.messageBody }}",
"rightValue": "hey"
}
]
},
"renameOutput": true
},
{
"outputKey": "help",
"conditions": {
"options": {
"version": 2,
"caseSensitive": false,
"typeValidation": "loose"
},
"combinator": "or",
"conditions": [
{
"operator": {
"type": "string",
"operation": "contains"
},
"leftValue": "={{ $json.messageBody }}",
"rightValue": "help"
},
{
"operator": {
"type": "string",
"operation": "contains"
},
"leftValue": "={{ $json.messageBody }}",
"rightValue": "support"
}
]
},
"renameOutput": true
},
{
"outputKey": "default",
"conditions": {
"options": {
"version": 2,
"caseSensitive": true,
"typeValidation": "loose"
},
"combinator": "and",
"conditions": [
{
"operator": {
"type": "string",
"operation": "notEmpty",
"singleValue": true
},
"leftValue": "={{ $json.messageBody }}"
}
]
},
"renameOutput": true
}
]
},
"options": {
"fallbackOutput": "extra"
}
},
"typeVersion": 3.2
},
{
"id": "a1b2c3d4-0004-4000-8000-000000000004",
"name": "Reply with Greeting",
"type": "n8n-nodes-wwebjs-api.wWebJsApi",
"position": [
1020,
140
],
"parameters": {
"resource": "client",
"operation": "sendMessage",
"sessionId": "={{ $json.sessionId }}",
"chatId": "={{ $json.chatId }}",
"contentType": "string",
"content": "=Hi {{ $json.senderName }}! \ud83d\udc4b Welcome! How can I help you today?\n\nType *help* to see available options."
},
"typeVersion": 1
},
{
"id": "a1b2c3d4-0005-4000-8000-000000000005",
"name": "Reply with Help Menu",
"type": "n8n-nodes-wwebjs-api.wWebJsApi",
"position": [
1020,
340
],
"parameters": {
"resource": "client",
"operation": "sendMessage",
"sessionId": "={{ $json.sessionId }}",
"chatId": "={{ $json.chatId }}",
"contentType": "string",
"content": "=\ud83d\udccb *Help Menu*\n\nHere are the things I can help you with:\n\n1\ufe0f\u20e3 *Business hours* \u2014 Mon-Fri 9AM-6PM\n2\ufe0f\u20e3 *Contact us* \u2014 email@example.com\n3\ufe0f\u20e3 *Website* \u2014 https://example.com\n\nOr just type your question and a team member will get back to you shortly!"
},
"typeVersion": 1
},
{
"id": "a1b2c3d4-0006-4000-8000-000000000006",
"name": "Reply with Default",
"type": "n8n-nodes-wwebjs-api.wWebJsApi",
"position": [
1020,
540
],
"parameters": {
"resource": "client",
"operation": "sendMessage",
"sessionId": "={{ $json.sessionId }}",
"chatId": "={{ $json.chatId }}",
"contentType": "string",
"content": "=Thanks for your message! \ud83d\ude4f\n\nA team member will review it and get back to you soon.\n\nType *help* for quick options."
},
"typeVersion": 1
},
{
"id": "a1b2c3d4-1001-4000-8000-000000000001",
"name": "Sticky Note",
"type": "n8n-nodes-base.stickyNote",
"position": [
60,
-80
],
"parameters": {
"width": 1180,
"height": 280,
"color": 2,
"content": "## Auto-reply to incoming WhatsApp messages with WWebJS API\n\n### How it works\n1. The **WWebJS API Trigger** listens for incoming WhatsApp messages (excluding your own and group chats).\n2. A **Set** node extracts sender info, chat ID, and message body.\n3. A **Switch** node routes messages by keyword: greetings, help requests, or a default catch-all.\n4. Each branch sends a tailored auto-reply via the **WWebJS API** node.\n\n### Setup steps\n1. Install the `n8n-nodes-wwebjs-api` community node in your **self-hosted** n8n instance.\n2. Configure WWebJS API credentials (API base URL + optional API key) pointing to your [wwebjs-api](https://github.com/avoylenko/wwebjs-api) server.\n3. Start a WhatsApp session and scan the QR code.\n4. Set the webhook URL in your wwebjs-api config to point to this trigger's URL.\n5. Customize the reply messages in each \"Reply\" node to match your business.\n6. Activate the workflow."
},
"typeVersion": 1
},
{
"id": "a1b2c3d4-1002-4000-8000-000000000002",
"name": "Sticky Note1",
"type": "n8n-nodes-base.stickyNote",
"position": [
60,
700
],
"parameters": {
"width": 500,
"height": 100,
"color": 5,
"content": "## \u26a0\ufe0f Community node \u2014 self-hosted n8n only\nThis workflow uses the `n8n-nodes-wwebjs-api` community node and requires a running [wwebjs-api](https://github.com/avoylenko/wwebjs-api) server."
},
"typeVersion": 1
},
{
"id": "a1b2c3d4-1003-4000-8000-000000000003",
"name": "Sticky Note2",
"type": "n8n-nodes-base.stickyNote",
"position": [
180,
220
],
"parameters": {
"width": 240,
"height": 200,
"content": "## Trigger\nListens for new WhatsApp messages, filtering out own messages and groups."
},
"typeVersion": 1
},
{
"id": "a1b2c3d4-1004-4000-8000-000000000004",
"name": "Sticky Note3",
"type": "n8n-nodes-base.stickyNote",
"position": [
660,
220
],
"parameters": {
"width": 270,
"height": 420,
"content": "## Route & Reply\nKeyword-based routing sends a different auto-reply for greetings, help, or a default response."
},
"typeVersion": 1
}
],
"connections": {
"WhatsApp Message Received": {
"main": [
[
{
"node": "Extract Message Data",
"type": "main",
"index": 0
}
]
]
},
"Extract Message Data": {
"main": [
[
{
"node": "Check Message Content",
"type": "main",
"index": 0
}
]
]
},
"Check Message Content": {
"main": [
[
{
"node": "Reply with Greeting",
"type": "main",
"index": 0
}
],
[
{
"node": "Reply with Help Menu",
"type": "main",
"index": 0
}
],
[
{
"node": "Reply with Default",
"type": "main",
"index": 0
}
]
]
}
}
}
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About this workflow
Auto-reply to incoming WhatsApp messages with WWebJS API. Uses n8n-nodes-wwebjs-api. Event-driven trigger; 10 nodes.
Source: https://github.com/vgpastor/n8n-nodes-wwebjs-api/blob/c72a65fd82963935b0cae43de94b8a206da241f8/templates/template-1-auto-reply-bot.json — original creator credit. Request a take-down →
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