The workflow JSON
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{
"name": "Chatbot \u2014 Website Chat",
"nodes": [
{
"parameters": {
"httpMethod": "POST",
"path": "website-chat",
"responseMode": "lastNode",
"options": {
"rawBody": false
}
},
"id": "node-webhook-website",
"name": "Webhook \u2014 Website Chat",
"type": "n8n-nodes-base.webhook",
"typeVersion": 2,
"position": [
240,
300
],
"notes": "URL p\u00fablica: https://SEU_DOMINIO/webhook/website-chat\nO widget JS faz POST aqui diretamente."
},
{
"parameters": {
"jsCode": "// Valida e normaliza o payload do widget de chat\nconst body = $input.first().json.body;\n\nconst required = ['visitor_id', 'text'];\nfor (const field of required) {\n if (!body[field]) {\n throw new Error(`Campo obrigat\u00f3rio ausente: ${field}`);\n }\n}\n\nif (body.text.length > 4096) {\n throw new Error('Mensagem muito longa');\n}\n\nreturn [{\n json: {\n external_user_id: body.visitor_id,\n channel: 'website',\n text: body.text.trim(),\n user_name: body.name || null,\n user_email: body.email || null,\n metadata: {\n page_url: body.page_url || null,\n user_agent: body.user_agent || null,\n session_id: body.session_id || null\n }\n }\n}];"
},
"id": "node-validate-payload",
"name": "Valida e normaliza payload",
"type": "n8n-nodes-base.code",
"typeVersion": 2,
"position": [
460,
300
]
},
{
"parameters": {
"url": "http://api:8000/api/v1/messages/incoming",
"sendHeaders": true,
"headerParameters": {
"parameters": [
{
"name": "X-Webhook-Secret",
"value": "={{ $env.N8N_WEBHOOK_SECRET }}"
},
{
"name": "Content-Type",
"value": "application/json"
}
]
},
"sendBody": true,
"specifyBody": "json",
"jsonBody": "={\n \"external_user_id\": \"{{ $json.external_user_id }}\",\n \"channel\": \"{{ $json.channel }}\",\n \"text\": \"{{ $json.text }}\",\n \"user_name\": {{ $json.user_name ? '\"' + $json.user_name + '\"' : 'null' }},\n \"user_email\": {{ $json.user_email ? '\"' + $json.user_email + '\"' : 'null' }},\n \"metadata\": {{ JSON.stringify($json.metadata) }}\n}",
"options": {
"timeout": 15000,
"response": {
"response": {
"fullResponse": false
}
}
}
},
"id": "node-call-backend",
"name": "Chama Backend Python",
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 4.2,
"position": [
680,
300
]
},
{
"parameters": {
"conditions": {
"conditions": [
{
"leftValue": "={{ $json.human_handoff }}",
"rightValue": true,
"operator": {
"type": "boolean",
"operation": "equals"
}
}
]
}
},
"id": "node-check-handoff",
"name": "Handoff para humano?",
"type": "n8n-nodes-base.if",
"typeVersion": 2,
"position": [
900,
300
]
},
{
"parameters": {
"jsCode": "// Resposta normal do bot \u2014 retorna JSON ao widget\nconst data = $input.first().json;\nreturn [{\n json: {\n ok: true,\n conversation_id: data.conversation_id,\n message_id: data.message_id,\n reply: data.reply,\n intent: data.intent,\n human_handoff: false,\n tokens_used: data.tokens_used\n }\n}];"
},
"id": "node-format-bot-reply",
"name": "Formata resposta do bot",
"type": "n8n-nodes-base.code",
"typeVersion": 2,
"position": [
1120,
200
]
},
{
"parameters": {
"jsCode": "// Resposta de handoff \u2014 widget exibe banner de transfer\u00eancia\nconst data = $input.first().json;\nreturn [{\n json: {\n ok: true,\n conversation_id: data.conversation_id,\n message_id: data.message_id,\n reply: data.reply,\n intent: data.intent,\n human_handoff: true,\n handoff_message: 'Um agente humano ir\u00e1 continuar seu atendimento em breve. Por favor, aguarde.',\n tokens_used: data.tokens_used\n }\n}];"
},
"id": "node-format-handoff-reply",
"name": "Formata resposta de handoff",
"type": "n8n-nodes-base.code",
"typeVersion": 2,
"position": [
1120,
400
]
},
{
"parameters": {
"jsCode": "// Notifica equipe sobre handoff via website\n// Substitua pelo n\u00f3 Slack, Email, ou Zendesk conforme seu stack\nconst data = $('Chama Backend Python').first().json;\nconsole.log('HANDOFF WEBSITE', JSON.stringify({\n conversation_id: data.conversation_id,\n intent: data.intent,\n urgency_score: data.urgency_score,\n ts: new Date().toISOString()\n}));\n\n// Exemplo: chamar webhook do Slack\n// await $http.post(process.env.SLACK_WEBHOOK_URL, {\n// text: `\ud83d\udea8 Handoff solicitado\\nConversa: ${data.conversation_id}\\nUrg\u00eancia: ${data.urgency_score}`\n// });\n\nreturn $input.all();"
},
"id": "node-notify-team",
"name": "Notifica equipe",
"type": "n8n-nodes-base.code",
"typeVersion": 2,
"position": [
1340,
400
]
},
{
"parameters": {
"respondWith": "json",
"responseBody": "={{ JSON.stringify($json) }}",
"options": {
"responseCode": 200
}
},
"id": "node-respond-widget",
"name": "Responde ao widget",
"type": "n8n-nodes-base.respondToWebhook",
"typeVersion": 1,
"position": [
1560,
200
]
},
{
"parameters": {
"respondWith": "json",
"responseBody": "={{ JSON.stringify($json) }}",
"options": {
"responseCode": 200
}
},
"id": "node-respond-widget-handoff",
"name": "Responde ao widget (handoff)",
"type": "n8n-nodes-base.respondToWebhook",
"typeVersion": 1,
"position": [
1560,
400
]
},
{
"parameters": {
"respondWith": "json",
"responseBody": "={ \"ok\": false, \"error\": \"Erro interno. Tente novamente.\" }",
"options": {
"responseCode": 500
}
},
"id": "node-error-response",
"name": "Responde erro ao widget",
"type": "n8n-nodes-base.respondToWebhook",
"typeVersion": 1,
"position": [
680,
520
]
},
{
"parameters": {
"jsCode": "const error = $input.first().json;\nconsole.error('WEBSITE_CHAT_ERROR', JSON.stringify({\n error: error.message || 'Unknown error',\n ts: new Date().toISOString()\n}));\nreturn $input.all();"
},
"id": "node-log-error",
"name": "Loga erro",
"type": "n8n-nodes-base.code",
"typeVersion": 2,
"position": [
460,
520
]
},
{
"parameters": {
"jsCode": "const data = $input.first().json;\nconsole.log(JSON.stringify({\n event: 'website_chat_processed',\n conversation_id: data.conversation_id,\n intent: data.intent,\n urgency_score: data.urgency_score,\n tokens_used: data.tokens_used,\n human_handoff: data.human_handoff,\n ts: new Date().toISOString()\n}));\nreturn $input.all();"
},
"id": "node-log-success",
"name": "Log de auditoria",
"type": "n8n-nodes-base.code",
"typeVersion": 2,
"position": [
1340,
200
]
}
],
"connections": {
"Webhook \u2014 Website Chat": {
"main": [
[
{
"node": "Valida e normaliza payload",
"type": "main",
"index": 0
}
]
]
},
"Valida e normaliza payload": {
"main": [
[
{
"node": "Chama Backend Python",
"type": "main",
"index": 0
}
]
]
},
"Chama Backend Python": {
"main": [
[
{
"node": "Handoff para humano?",
"type": "main",
"index": 0
}
]
]
},
"Handoff para humano?": {
"main": [
[
{
"node": "Formata resposta do bot",
"type": "main",
"index": 0
}
],
[
{
"node": "Formata resposta de handoff",
"type": "main",
"index": 0
}
]
]
},
"Formata resposta do bot": {
"main": [
[
{
"node": "Log de auditoria",
"type": "main",
"index": 0
}
]
]
},
"Formata resposta de handoff": {
"main": [
[
{
"node": "Notifica equipe",
"type": "main",
"index": 0
}
]
]
},
"Log de auditoria": {
"main": [
[
{
"node": "Responde ao widget",
"type": "main",
"index": 0
}
]
]
},
"Notifica equipe": {
"main": [
[
{
"node": "Responde ao widget (handoff)",
"type": "main",
"index": 0
}
]
]
},
"Loga erro": {
"main": [
[
{
"node": "Responde erro ao widget",
"type": "main",
"index": 0
}
]
]
}
},
"settings": {
"executionOrder": "v1",
"saveManualExecutions": true,
"errorWorkflow": ""
},
"meta": {
"description": "Recebe mensagens do widget de chat do website, processa via backend Python com IA e retorna resposta JSON ao widget. Suporta handoff para humano."
}
}
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About this workflow
Chatbot — Website Chat. Uses httpRequest. Webhook trigger; 12 nodes.
Source: https://github.com/ElsonGomes-pgr/ChatBot-inteligente/blob/6621826bab9880418c32845d60007e2dfb9f10ad/chatbot-backend/n8n/workflow-website.json — original creator credit. Request a take-down →
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