This workflow follows the Google Calendar → HTTP Request recipe pattern — see all workflows that pair these two integrations.
The workflow JSON
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{
"name": "Agente Vendas Ve\u00edculos - Completo",
"nodes": [
{
"parameters": {
"httpMethod": "POST",
"path": "whatsapp-webhook",
"responseMode": "onReceived"
},
"name": "Webhook - Recebe Mensagens WhatsApp",
"type": "n8n-nodes-base.webhook",
"typeVersion": 1,
"position": [
250,
300
]
},
{
"parameters": {
"conditions": {
"string": [
{
"value1": "={{$json[\"type\"]}}",
"operation": "equal",
"value2": "audio"
}
]
}
},
"name": "IF - Texto ou \u00c1udio",
"type": "n8n-nodes-base.if",
"typeVersion": 1,
"position": [
450,
300
]
},
{
"parameters": {
"action": "GET",
"key": "={{`human_override:${$json.sender?.id || $json.sender}`}}"
},
"name": "Redis - Verifica Bloqueio Humano",
"type": "n8n-nodes-base.redis",
"typeVersion": 1,
"position": [
650,
400
]
},
{
"parameters": {
"conditions": {
"string": [
{
"value1": "={{$json}}",
"operation": "notEmpty",
"value2": ""
}
]
}
},
"name": "IF - Bloqueio Ativo?",
"type": "n8n-nodes-base.if",
"typeVersion": 1,
"position": [
850,
400
]
},
{
"parameters": {
"url": "https://api.openai.com/v1/audio/transcriptions",
"options": {},
"responseFormat": "json",
"headerParametersJson": "[{\"name\":\"Authorization\",\"value\":\"Bearer {{OPENAI_API_KEY}}\"}]",
"bodyParametersJson": "[{\"name\":\"file\",\"value\":\"={{$json.audio_url}}\",\"type\":\"file\"}]",
"returnFullResponse": false
},
"name": "HTTP Request - Transcri\u00e7\u00e3o \u00c1udio (Whisper/OpenAI)",
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 1,
"position": [
650,
200
]
},
{
"parameters": {
"action": "SET",
"key": "={{`msg:${$json.id}:text`}}",
"value": "={{$json.transcript || $json.text}}",
"expire": 3600
},
"name": "Redis - Cache Texto",
"type": "n8n-nodes-base.redis",
"typeVersion": 1,
"position": [
850,
200
]
},
{
"parameters": {
"url": "{{SUPABASE_URL}}/rest/v1/vehicles?select=*",
"options": {},
"responseFormat": "json",
"headerParametersJson": "[{\"name\":\"apikey\",\"value\":\"{{SUPABASE_KEY}}\"},{\"name\":\"Authorization\",\"value\":\"Bearer {{SUPABASE_KEY}}\"}]",
"queryParametersJson": "[]",
"returnFullResponse": false
},
"name": "Supabase - Consulta Estoque Ve\u00edculos",
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 1,
"position": [
1050,
300
]
},
{
"parameters": {
"functionCode": "const message = items[0].json;\nconst stock = items[1].json;\nconst prompt = `Voc\u00ea \u00e9 um assistente virtual especializado em vendas de ve\u00edculos. Aqui est\u00e1 o contexto do cliente:\\n${JSON.stringify(message)}\\n\\nEstoque atual dos ve\u00edculos:\\n${JSON.stringify(stock)}\\n\\nPor favor, responda apresentando os modelos dispon\u00edveis, calcule op\u00e7\u00f5es de financiamento com taxa de 2,2% ao m\u00eas para 36, 48 e 60 parcelas conforme a entrada informada pelo cliente. Al\u00e9m disso, ofere\u00e7a agendamento de visitas. Seja educado e objetivo.`;\nreturn [{ json: { prompt } }];"
},
"name": "Function - Preparar Prompt IA",
"type": "n8n-nodes-base.function",
"typeVersion": 1,
"position": [
1250,
300
]
},
{
"parameters": {
"url": "https://api.openai.com/v1/chat/completions",
"method": "POST",
"headerParametersJson": "[{\"name\":\"Authorization\",\"value\":\"Bearer {{OPENAI_API_KEY}}\"},{\"name\":\"Content-Type\",\"value\":\"application/json\"}]",
"bodyParametersJson": "[{\"name\":\"model\",\"value\":\"gpt-4o-mini\"},{\"name\":\"messages\",\"value\":[{\"role\":\"system\",\"content\":\"Voc\u00ea \u00e9 um assistente de vendas de ve\u00edculos. Qualifique o cliente, apresente modelos e condi\u00e7\u00f5es de financiamento, e agende visita.\"},{\"role\":\"user\",\"content\":\"={{$json.prompt}}\"}]}]",
"responseFormat": "json"
},
"name": "OpenAI - Gerar Resposta IA",
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 1,
"position": [
1450,
300
]
},
{
"parameters": {
"functionCode": "const data = items[0].json;\nconst valor = parseFloat(data.valorVeiculo || data.valor || 0);\nconst entrada = parseFloat(data.entrada || 0);\nconst taxa = 0.022;\nconst parcelas = [36, 48, 60];\nconst saldo = Math.max(0, valor - entrada);\nfunction pmt(v, i, n) {\n return (v * i) / (1 - Math.pow(1 + i, -n));\n}\nconst opcoes = parcelas.map(n => ({ parcelas: n, parcelaMensal: parseFloat(pmt(saldo, taxa, n).toFixed(2)) }));\nreturn [{ json: { opcoesFinanciamento: opcoes, saldo, entrada, valor } }];"
},
"name": "Function - Calcular Financiamento",
"type": "n8n-nodes-base.function",
"typeVersion": 1,
"position": [
1650,
300
]
},
{
"parameters": {
"operation": "create",
"calendarId": "primary",
"start": "={{$json.start}}",
"end": "={{$json.end}}",
"summary": "={{$json.summary}}",
"description": "={{$json.description}}",
"sendNotifications": true
},
"name": "Google Calendar - Criar Evento",
"type": "n8n-nodes-base.googleCalendar",
"typeVersion": 1,
"position": [
1850,
300
]
},
{
"parameters": {
"url": "{{CRM_API_URL}}/contacts",
"method": "POST",
"headerParametersJson": "[{\"name\":\"Authorization\",\"value\":\"Bearer {{CRM_TOKEN}}\"},{\"name\":\"Content-Type\",\"value\":\"application/json\"}]",
"bodyParametersJson": "[{\"name\":\"email\",\"value\":\"={{$json.email || ''}}\"},{\"name\":\"name\",\"value\":\"={{$json.nome || ''}}\"},{\"name\":\"phone\",\"value\":\"={{$json.phone || ''}}\"}]",
"responseFormat": "json"
},
"name": "CRM - Criar/Atualizar Contato",
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 1,
"position": [
2050,
300
]
},
{
"parameters": {
"waitTime": {
"amount": 15,
"timeUnit": "minutes"
}
},
"name": "Wait - Follow-up 15 minutos",
"type": "n8n-nodes-base.wait",
"typeVersion": 1,
"position": [
2250,
250
]
},
{
"parameters": {
"url": "{{WHATSAPP_API_URL}}/send-message",
"method": "POST",
"headerParametersJson": "[{\"name\":\"Authorization\",\"value\":\"Bearer {{WHATSAPP_TOKEN}}\"},{\"name\":\"Content-Type\",\"value\":\"application/json\"}]",
"bodyParametersJson": "[{\"name\":\"to\",\"value\":\"={{$json.sender?.phone || $json.phone}}\"},{\"name\":\"message\",\"value\":\"Ol\u00e1! Ainda est\u00e1 interessado no ve\u00edculo? Posso ajudar.\"}]",
"responseFormat": "json"
},
"name": "Send Message - Reativa\u00e7\u00e3o 15 minutos",
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 1,
"position": [
2450,
250
]
},
{
"parameters": {
"waitTime": {
"amount": 1,
"timeUnit": "hours"
}
},
"name": "Wait - Follow-up 1 hora",
"type": "n8n-nodes-base.wait",
"typeVersion": 1,
"position": [
2650,
250
]
},
{
"parameters": {
"url": "{{WHATSAPP_API_URL}}/send-message",
"method": "POST",
"headerParametersJson": "[{\"name\":\"Authorization\",\"value\":\"Bearer {{WHATSAPP_TOKEN}}\"},{\"name\":\"Content-Type\",\"value\":\"application/json\"}]",
"bodyParametersJson": "[{\"name\":\"to\",\"value\":\"={{$json.sender?.phone || $json.phone}}\"},{\"name\":\"message\",\"value\":\"Oi de novo! Posso agendar sua visita para ver os ve\u00edculos.\"}]",
"responseFormat": "json"
},
"name": "Send Message - Reativa\u00e7\u00e3o 1 hora",
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 1,
"position": [
2850,
250
]
},
{
"parameters": {
"waitTime": {
"amount": 1,
"timeUnit": "days"
}
},
"name": "Wait - Follow-up 1 dia",
"type": "n8n-nodes-base.wait",
"typeVersion": 1,
"position": [
3050,
250
]
},
{
"parameters": {
"url": "{{WHATSAPP_API_URL}}/send-message",
"method": "POST",
"headerParametersJson": "[{\"name\":\"Authorization\",\"value\":\"Bearer {{WHATSAPP_TOKEN}}\"},{\"name\":\"Content-Type\",\"value\":\"application/json\"}]",
"bodyParametersJson": "[{\"name\":\"to\",\"value\":\"={{$json.sender?.phone || $json.phone}}\"},{\"name\":\"message\",\"value\":\"Ol\u00e1! Estamos aqui para ajudar com o financiamento e agendamento. Quer continuar?\"}]",
"responseFormat": "json"
},
"name": "Send Message - Reativa\u00e7\u00e3o 1 dia",
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 1,
"position": [
3250,
250
]
},
{
"parameters": {
"sheetId": "{{GOOGLE_SHEETS_PUBLIC_ID}}",
"range": "Sheet1",
"event": "valueChange"
},
"name": "Google Sheets Trigger - Sync Supabase",
"type": "n8n-nodes-base.googleSheetsTrigger",
"typeVersion": 1,
"position": [
1050,
600
]
},
{
"parameters": {
"functionCode": "const rows = items.map(i => i.json);\nreturn rows.map(r => ({ json: r }));"
},
"name": "Function - Transformar Dados Google Sheets",
"type": "n8n-nodes-base.function",
"typeVersion": 1,
"position": [
1250,
600
]
},
{
"parameters": {
"url": "{{SUPABASE_URL}}/rest/v1/vehicles",
"method": "POST",
"headerParametersJson": "[{\"name\":\"apikey\",\"value\":\"{{SUPABASE_KEY}}\"},{\"name\":\"Authorization\",\"value\":\"Bearer {{SUPABASE_KEY}}\"},{\"name\":\"Content-Type\",\"value\":\"application/json\"}]",
"bodyParametersJson": "=[]",
"options": {
"queryParameters": {
"on_conflict": "id"
}
},
"responseFormat": "json"
},
"name": "HTTP Request - Upsert Supabase",
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 1,
"position": [
1450,
600
]
}
],
"connections": {
"Webhook - Recebe Mensagens WhatsApp": {
"main": [
[
{
"node": "IF - Texto ou \u00c1udio",
"type": "main",
"index": 0
}
]
]
},
"IF - Texto ou \u00c1udio": {
"main": [
[
{
"node": "HTTP Request - Transcri\u00e7\u00e3o \u00c1udio (Whisper/OpenAI)",
"type": "main",
"index": 0
}
],
[
{
"node": "Redis - Verifica Bloqueio Humano",
"type": "main",
"index": 0
}
]
]
},
"HTTP Request - Transcri\u00e7\u00e3o \u00c1udio (Whisper/OpenAI)": {
"main": [
[
{
"node": "Redis - Cache Texto",
"type": "main",
"index": 0
}
]
]
},
"Redis - Cache Texto": {
"main": [
[
{
"node": "Redis - Verifica Bloqueio Humano",
"type": "main",
"index": 0
}
]
]
},
"Redis - Verifica Bloqueio Humano": {
"main": [
[
{
"node": "IF - Bloqueio Ativo?",
"type": "main",
"index": 0
}
]
]
},
"IF - Bloqueio Ativo?": {
"main": [
[
{
"node": "OpenAI - Gerar Resposta IA",
"type": "main",
"index": 0
}
],
[
{
"node": "CRM - Criar/Atualizar Contato",
"type": "main",
"index": 0
}
]
]
},
"Supabase - Consulta Estoque Ve\u00edculos": {
"main": [
[
{
"node": "Function - Preparar Prompt IA",
"type": "main",
"index": 0
}
]
]
},
"Function - Preparar Prompt IA": {
"main": [
[
{
"node": "OpenAI - Gerar Resposta IA",
"type": "main",
"index": 0
}
]
]
},
"OpenAI - Gerar Resposta IA": {
"main": [
[
{
"node": "Function - Calcular Financiamento",
"type": "main",
"index": 0
},
{
"node": "Google Calendar - Criar Evento",
"type": "main",
"index": 0
},
{
"node": "CRM - Criar/Atualizar Contato",
"type": "main",
"index": 0
},
{
"node": "Wait - Follow-up 15 minutos",
"type": "main",
"index": 0
}
]
]
},
"Wait - Follow-up 15 minutos": {
"main": [
[
{
"node": "Send Message - Reativa\u00e7\u00e3o 15 minutos",
"type": "main",
"index": 0
},
{
"node": "Wait - Follow-up 1 hora",
"type": "main",
"index": 0
}
]
]
},
"Wait - Follow-up 1 hora": {
"main": [
[
{
"node": "Send Message - Reativa\u00e7\u00e3o 1 hora",
"type": "main",
"index": 0
},
{
"node": "Wait - Follow-up 1 dia",
"type": "main",
"index": 0
}
]
]
},
"Wait - Follow-up 1 dia": {
"main": [
[
{
"node": "Send Message - Reativa\u00e7\u00e3o 1 dia",
"type": "main",
"index": 0
}
]
]
},
"Google Sheets Trigger - Sync Supabase": {
"main": [
[
{
"node": "Function - Transformar Dados Google Sheets",
"type": "main",
"index": 0
}
]
]
},
"Function - Transformar Dados Google Sheets": {
"main": [
[
{
"node": "HTTP Request - Upsert Supabase",
"type": "main",
"index": 0
}
]
]
}
},
"active": false,
"settings": {},
"id": "agente-vendas-veiculos-completo"
}
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About this workflow
Agente Vendas Veículos - Completo. Uses redis, httpRequest, googleCalendar, googleSheetsTrigger. Webhook trigger; 21 nodes.
Source: https://gist.github.com/darkzinxd-alt/ab8111084e8e3021cbd246cf4b95ad63 — original creator credit. Request a take-down →
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