This workflow follows the Executecommand → Readwritefile recipe pattern — see all workflows that pair these two integrations.
The workflow JSON
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{
"nodes": [
{
"parameters": {
"httpMethod": "POST",
"path": "2dfeafbc-a71c-4ede-aa47-c74677c99b3f",
"options": {}
},
"type": "n8n-nodes-base.webhook",
"typeVersion": 2,
"position": [
0,
0
],
"id": "92b70250-4bf1-40c2-99db-d365a220268b",
"name": "Webhook"
},
{
"parameters": {
"assignments": {
"assignments": [
{
"id": "2c8f826b-6a7b-47c5-b9a6-47b6abef545a",
"name": "nome_usuario",
"value": "={{ $json.body.sender.name }}",
"type": "string"
},
{
"id": "f8a59b72-6a3d-48fd-82ad-6e853648b4e4",
"name": "telefone_usuario",
"value": "={{ $json.body.sender.phone_number }}",
"type": "string"
},
{
"id": "93dd8175-d019-4daa-82de-a76bb916d5e4",
"name": "mensagem_texto",
"value": "={{ $json.body.content }}",
"type": "string"
},
{
"id": "d617fe58-084b-4786-96aa-c8a115d2973a",
"name": "tipo_anexo",
"value": "={{ $json.body.attachments[0].file_type }}",
"type": "string"
},
{
"id": "85ae7af9-dc74-4f71-9db0-d13e89b6347f",
"name": "url_anexo",
"value": "={{ $json.body.attachments[0].data_url }}",
"type": "string"
},
{
"id": "b15aa0df-9245-43ef-903c-278b0ede6e12",
"name": "id_conta",
"value": "={{ $json.body.account.id }}",
"type": "string"
},
{
"id": "79b8d19f-5439-4dd6-bfa6-bbd08e3b7f6e",
"name": "id_conversa",
"value": "={{ $json.body.conversation.id }}",
"type": "string"
},
{
"id": "69c104c3-c797-437e-a950-c6ba3fd49c42",
"name": "url_chatwoot",
"value": "<url do seu Chatwoot>",
"type": "string"
}
]
},
"options": {}
},
"type": "n8n-nodes-base.set",
"typeVersion": 3.4,
"position": [
260,
0
],
"id": "d984b16b-462b-4fa3-b492-afe0f719a52f",
"name": "Vari\u00e1veis"
},
{
"parameters": {
"rules": {
"values": [
{
"conditions": {
"options": {
"caseSensitive": true,
"leftValue": "",
"typeValidation": "strict",
"version": 2
},
"conditions": [
{
"leftValue": "={{ $json.mensagem_texto }}",
"rightValue": "",
"operator": {
"type": "string",
"operation": "notEmpty",
"singleValue": true
},
"id": "da50279f-f1ad-4ed6-9540-13eb0b240f33"
}
],
"combinator": "and"
},
"renameOutput": true,
"outputKey": "Texto"
},
{
"conditions": {
"options": {
"caseSensitive": true,
"leftValue": "",
"typeValidation": "strict",
"version": 2
},
"conditions": [
{
"id": "aa8e2f09-4af1-4734-a015-8fe4bd08d39e",
"leftValue": "={{ $json.tipo_anexo }}",
"rightValue": "image",
"operator": {
"type": "string",
"operation": "equals"
}
}
],
"combinator": "and"
},
"renameOutput": true,
"outputKey": "Imagem"
}
]
},
"options": {
"fallbackOutput": "extra",
"renameFallbackOutput": "Outro"
}
},
"type": "n8n-nodes-base.switch",
"typeVersion": 3.2,
"position": [
500,
0
],
"id": "ae345d6d-ef7d-4fcb-aa3e-9324e0b685f9",
"name": "Tipo de mensagem"
},
{
"parameters": {
"method": "POST",
"url": "={{ $('Vari\u00e1veis').item.json.url_chatwoot }}/api/v1/accounts/{{ $('Vari\u00e1veis').item.json.id_conta }}/conversations/{{ $('Vari\u00e1veis').item.json.id_conversa }}/messages",
"authentication": "genericCredentialType",
"genericAuthType": "httpHeaderAuth",
"sendBody": true,
"bodyParameters": {
"parameters": [
{
"name": "content",
"value": "=Desculpa {{ $('Vari\u00e1veis').item.json.nome_usuario }}, eu n\u00e3o suporto esse tipo de mensagem!\n\nTente de novo com texto ou imagem."
}
]
},
"options": {}
},
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 4.2,
"position": [
780,
440
],
"id": "f1ffdd4b-3020-4d9f-b56b-6f73621d30fc",
"name": "Enviar mensagem n\u00e3o suportada",
"credentials": {}
},
{
"parameters": {
"modelName": "models/gemini-2.5-pro-preview-05-06",
"options": {}
},
"type": "@n8n/n8n-nodes-langchain.lmChatGoogleGemini",
"typeVersion": 1,
"position": [
1740,
200
],
"id": "7f4f4f59-0f07-4b71-8a79-54e76c7c677d",
"name": "Google Gemini Chat Model",
"credentials": {}
},
{
"parameters": {
"sessionIdType": "customKey",
"sessionKey": "={{ $('Vari\u00e1veis').item.json.telefone_usuario }}",
"contextWindowLength": 10
},
"type": "@n8n/n8n-nodes-langchain.memoryBufferWindow",
"typeVersion": 1.3,
"position": [
1880,
200
],
"id": "d16d6a95-1b7c-4b21-847c-aa4d7abe7333",
"name": "Simple Memory"
},
{
"parameters": {
"toolDescription": "Use esse ferramenta para buscar informa\u00e7\u00f5es sobre restaurantes e outros estabelecimentos perto da localiza\u00e7\u00e3o do usu\u00e1rio.\n\nA formata\u00e7\u00e3o da localiza\u00e7\u00e3o deve seguir um formato muito espec\u00edfico, **UTILIZE ELE**. Exemplo:\n\nO usu\u00e1rio perguntou sobre a cidade de S\u00e3o Paulo -> \"Sao Paulo, State of Sao Paulo, Brazil\"\n\n**N\u00c3O USE ACENTOS NOS NOMES DAS CIDADES ESTADOS OU PA\u00cdSES**",
"url": "https://serpapi.com/search",
"authentication": "genericCredentialType",
"genericAuthType": "httpQueryAuth",
"sendQuery": true,
"queryParameters": {
"parameters": [
{
"name": "q",
"value": "={{ $fromAI('termo_pesquisa', `O termo a ser pesquisado.`, 'string') }}"
},
{
"name": "location",
"value": "={{ $fromAI('localizacao', `A localiza\u00e7\u00e3o da pesquisa. ATEN\u00c7\u00c3O!! N\u00c3O USE ACENTOS NOS NOMES`, 'string') }}"
},
{
"name": "hl",
"value": "pt-br"
},
{
"name": "gl",
"value": "br"
}
]
},
"options": {}
},
"type": "n8n-nodes-base.httpRequestTool",
"typeVersion": 4.2,
"position": [
2160,
200
],
"id": "63a1917d-6720-4c34-b8ed-288337a8606b",
"name": "Buscar locais de interesse",
"credentials": {}
},
{
"parameters": {
"method": "POST",
"url": "={{ $('Vari\u00e1veis').item.json.url_chatwoot }}/api/v1/accounts/{{ $('Vari\u00e1veis').item.json.id_conta }}/conversations/{{ $('Vari\u00e1veis').item.json.id_conversa }}/messages",
"authentication": "genericCredentialType",
"genericAuthType": "httpHeaderAuth",
"sendBody": true,
"bodyParameters": {
"parameters": [
{
"name": "content",
"value": "={{ $('Assistente de viagens').item.json.output }}"
}
]
},
"options": {}
},
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 4.2,
"position": [
2260,
-20
],
"id": "811e725d-1a53-4823-ba94-fb67119b5f3a",
"name": "Responder usu\u00e1rio.",
"credentials": {}
},
{
"parameters": {
"promptType": "define",
"text": "={{ $('Tipo de mensagem').item.json.mensagem_texto || $('Extrair dados comprovante').item.json.candidates[0].content.parts[0].text }}\n\n{{ $('Upload arquivo').isExecuted ? 'Link do comprovante: ' + $('Upload arquivo').item.json.webViewLink : '' }}",
"options": {
"systemMessage": "=Agora s\u00e3o {{ $now.format('FFFF') }}.\n\nO nome do usu\u00e1rio falando com voc\u00ea \u00e9 {{ $('Vari\u00e1veis').item.json.nome_usuario }}.\n\n## Papel\n\nVoc\u00ea \u00e9 uma assistente de viagens, respons\u00e1vel por ajudar o usu\u00e1rio com o que ele precisar durante a viagem.\n\n## Tarefas\n\n### Buscar locais de interesse\n\nO usu\u00e1rio poder\u00e1 te pedir sugest\u00f5es de locais para ele poder ir, como restaurantes ou churrascarias. Veja abaixo as prefer\u00eancias do usu\u00e1rio, busque locais com a ferramenta \"Buscar locais de interesse\", e filtre a sa\u00edda conforme as prefer\u00eancias.\n\nInclua na resposta pelo menos o nome e o endere\u00e7o do local.\n\n#### Gostos do usu\u00e1rio\n\n- Macarr\u00e3o: carbonara\n- Pizza: calabresa\n- Carnes: costela, churrasco, cupim\n\n#### Como pesquisar\n\nDependendo do que o usu\u00e1rio quiser comer, a pesquisa dever\u00e1 ser para o tipo de estabelecimento que serve esse prato, na cidade que ele est\u00e1. Por exemplo:\n\n- \"Quero comer X\"\n- Termo de pesquisa: \"X em <cidade da pesquisa>\"\n\n### Salvar despesa\n\nA entrada do usu\u00e1rio pode conter informa\u00e7\u00f5es extra\u00eddas de um comprovante de alguma despesa durante a viagem. Extraia as informa\u00e7\u00f5es relevantes para salvar essa despesa em uma planilha, utilizando a ferramenta \"Salvar despesa\". Note que o usu\u00e1rio pode incluir ou n\u00e3o um link para o arquivo do comprovante.\n\n- Use v\u00edrgulas para a casa decimal dos valores: \"200,00\". *N\u00c3O USE PONTO PARA CASA DECIMAL*\n- Use o formato \"DD/MM/YYYY HH:MM:SS\" para a data das despesas.\n- Caso n\u00e3o seja informado a data da despesa, use a data e hora atual, informando o usu\u00e1rio que voc\u00ea fez isso.\n- Ao salvar a despesa, **SEMPRE INFORME AO USU\u00c1RIO OS DADOS QUE FORAM SALVOS**\n- Ao informar para o usu\u00e1rio, formate o valor como \"R$ 100,00\"\n\n### Listar despesas\n\nUse a ferramenta \"Listar despesas\" para buscar informa\u00e7\u00f5es de despesas solicitadas pelo usu\u00e1rio.\n\n## Notas\n\nA sua sa\u00edda ser\u00e1 usada numa mensagem de WhatsApp, portanto se atente a formata\u00e7\u00e3o.\n\n- Para texto em negrito, use apenas um asterisco (*), n\u00e3o dois (**).\n- N\u00e3o inclua links dos comprovantes na sa\u00edda."
}
},
"type": "@n8n/n8n-nodes-langchain.agent",
"typeVersion": 1.9,
"position": [
1860,
-20
],
"id": "5a3a70a2-5f61-4402-8ffd-e8b6dd2ba633",
"name": "Assistente de viagens"
},
{
"parameters": {
"descriptionType": "manual",
"toolDescription": "Use essa ferramenta para salvar uma despesa na planilha.\n\nO link de anexo para o comprovante \u00e9 opcional.",
"operation": "append",
"documentId": {
"__rl": true,
"value": "",
"mode": "list"
},
"sheetName": {
"__rl": true,
"value": "",
"mode": "list"
},
"columns": {
"mappingMode": "defineBelow",
"value": {
"Despesa": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('Despesa', ``, 'string') }}",
"Data e hora": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('Data_e_hora', ``, 'string') }}",
"Categoria": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('Categoria', ``, 'string') }}",
"Valor": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('Valor', ``, 'string') }}",
"Anexo comprovante": "={{ /*n8n-auto-generated-fromAI-override*/ $fromAI('Anexo_comprovante', ``, 'string') }}"
},
"matchingColumns": [],
"schema": [
{
"id": "Despesa",
"displayName": "Despesa",
"required": false,
"defaultMatch": false,
"display": true,
"type": "string",
"canBeUsedToMatch": true
},
{
"id": "Data e hora",
"displayName": "Data e hora",
"required": false,
"defaultMatch": false,
"display": true,
"type": "string",
"canBeUsedToMatch": true
},
{
"id": "Categoria",
"displayName": "Categoria",
"required": false,
"defaultMatch": false,
"display": true,
"type": "string",
"canBeUsedToMatch": true
},
{
"id": "Valor",
"displayName": "Valor",
"required": false,
"defaultMatch": false,
"display": true,
"type": "string",
"canBeUsedToMatch": true
},
{
"id": "Anexo comprovante",
"displayName": "Anexo comprovante",
"required": false,
"defaultMatch": false,
"display": true,
"type": "string",
"canBeUsedToMatch": true
}
],
"attemptToConvertTypes": false,
"convertFieldsToString": false
},
"options": {
"useAppend": true
}
},
"type": "n8n-nodes-base.googleSheetsTool",
"typeVersion": 4.6,
"position": [
2300,
200
],
"id": "96968dc5-7e18-4bca-bf99-416d8dd10512",
"name": "Salvar despesa",
"credentials": {}
},
{
"parameters": {
"documentId": {
"__rl": true,
"value": "",
"mode": "list"
},
"sheetName": {
"__rl": true,
"value": "",
"mode": "list"
},
"options": {}
},
"type": "n8n-nodes-base.googleSheetsTool",
"typeVersion": 4.6,
"position": [
2440,
200
],
"id": "e5661e98-31da-440a-8204-626ea35f109c",
"name": "Listar despesas",
"credentials": {}
},
{
"parameters": {
"description": "Use a ferramenta para refletir sobre algo. Ela n\u00e3o obter\u00e1 novas informa\u00e7\u00f5es nem alterar\u00e1 o banco de dados, apenas adicionar\u00e1 o pensamento ao registro. Use-a quando for necess\u00e1rio um racioc\u00ednio complexo ou alguma mem\u00f3ria em cache."
},
"type": "@n8n/n8n-nodes-langchain.toolThink",
"typeVersion": 1,
"position": [
2020,
200
],
"id": "9bf4ae6e-d2b5-4593-a75f-f0307f8ed533",
"name": "Refletir"
},
{
"parameters": {
"url": "={{ $json.url_anexo }}",
"authentication": "genericCredentialType",
"genericAuthType": "httpHeaderAuth",
"options": {}
},
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 4.2,
"position": [
780,
180
],
"id": "98909137-16e4-4ada-8491-e5a0d0cd0259",
"name": "Download imagem",
"credentials": {}
},
{
"parameters": {
"method": "POST",
"url": "=https://generativelanguage.googleapis.com/v1beta/models/gemini-2.5-flash-preview-05-20:generateContent",
"authentication": "predefinedCredentialType",
"nodeCredentialType": "googlePalmApi",
"sendBody": true,
"specifyBody": "json",
"jsonBody": "={\n \"contents\": [{\n \"parts\":[\n {\"text\": \"Extraia as informa\u00e7\u00f5es dessa imagem. N\u00e3o inclua nenhum coment\u00e1rio adicional, al\u00e9m do conte\u00fado extra\u00eddo da imagem.\"},\n {\n \"inline_data\": {\n \"mime_type\": \"image/jpeg\",\n \"data\": \"{{ $json.data }}\"\n }\n }\n ]\n }]\n}\n",
"options": {}
},
"id": "8fce4cef-c6a3-45f3-ac91-15de28c176f7",
"name": "Extrair dados comprovante",
"type": "n8n-nodes-base.httpRequest",
"position": [
1500,
200
],
"typeVersion": 4.2,
"credentials": {}
},
{
"parameters": {
"operation": "binaryToPropery",
"options": {}
},
"type": "n8n-nodes-base.extractFromFile",
"typeVersion": 1,
"position": [
1040,
280
],
"id": "d42bec26-616c-452c-88dc-472bfe66b19c",
"name": "Converter base64"
},
{
"parameters": {
"name": "={{ $binary.data.fileName }}",
"driveId": {
"__rl": true,
"value": "",
"mode": "list"
},
"folderId": {
"__rl": true,
"value": "",
"mode": "list"
},
"options": {}
},
"type": "n8n-nodes-base.googleDrive",
"typeVersion": 3,
"position": [
1040,
100
],
"id": "ecbed277-a561-4075-bdbd-694fac6bb7bd",
"name": "Upload arquivo",
"credentials": {}
},
{
"parameters": {
"mode": "combine",
"combineBy": "combineAll",
"options": {}
},
"type": "n8n-nodes-base.merge",
"typeVersion": 3.1,
"position": [
1280,
200
],
"id": "d9403ee6-7ac1-4e45-9546-1f6a9eb52154",
"name": "Merge",
"executeOnce": false
},
{
"parameters": {
"content": "[](https://fazer.ai?utm_source=n8n&utm_campaign=sec-ep2&utm_medium=cw-1)\n\n## Esse \u00e9 um template fa\u00e7a voc\u00ea mesmo do canal\n## Lucas Moreira\n\n### Inscreva-se no nosso canal no YouTube\n[](https://youtube.com/@eulucassmoreira?si=0lH7hwX9pukjhmPQ)\n\n### Siga nosso GitHub\n[](https://github.com/fazer-ai)\n",
"height": 440,
"width": 550,
"color": 7
},
"type": "n8n-nodes-base.stickyNote",
"typeVersion": 1,
"position": [
-20,
-600
],
"id": "5094091a-7f7f-4397-8ded-038b54d1b8b6",
"name": "Sticky Note10"
},
{
"parameters": {
"content": "## Aprenda como fazer a melhor secret\u00e1ria IA\n\n[](https://www.youtube.com/watch?v=cvTWGNJGAu4)",
"height": 380,
"width": 520,
"color": 7
},
"type": "n8n-nodes-base.stickyNote",
"typeVersion": 1,
"position": [
1440,
-540
],
"id": "4336c7a1-6c80-44fd-aad7-e98043d552a2",
"name": "Sticky Note13"
},
{
"parameters": {
"content": "## Se gostou, me paga um caf\u00e9!\n\n",
"height": 440,
"width": 360,
"color": 5
},
"type": "n8n-nodes-base.stickyNote",
"typeVersion": 1,
"position": [
1060,
-600
],
"id": "b38f51c1-e476-450f-9ea5-55a2ac875725",
"name": "Sticky Note1"
},
{
"parameters": {
"content": "[](https://serpapi.com)\n\n## [Clique aqui para criar sua conta gratuita no SerpApi](https://serpapi.com)",
"height": 260,
"width": 400,
"color": 5
},
"type": "n8n-nodes-base.stickyNote",
"typeVersion": 1,
"position": [
2000,
360
],
"id": "b6c17109-ece0-4cd8-97f9-216925986ba6",
"name": "Sticky Note2"
},
{
"parameters": {
"content": "## Quer entender como funciona?\n\n\n### Assista o v\u00eddeo, deixe um like, e se inscreva no canal para ter acesso a mais workflows como esse!\n\n[](https://www.youtube.com/watch?v=GrR4y2_MlKk)",
"height": 440,
"width": 500,
"color": 7
},
"type": "n8n-nodes-base.stickyNote",
"typeVersion": 1,
"position": [
540,
-600
],
"id": "6a16ee8a-6a35-4dba-91bd-ab6a915e935c",
"name": "Sticky Note"
}
],
"connections": {
"Webhook": {
"main": [
[
{
"node": "Vari\u00e1veis",
"type": "main",
"index": 0
}
]
]
},
"Vari\u00e1veis": {
"main": [
[
{
"node": "Tipo de mensagem",
"type": "main",
"index": 0
}
]
]
},
"Tipo de mensagem": {
"main": [
[
{
"node": "Assistente de viagens",
"type": "main",
"index": 0
}
],
[
{
"node": "Download imagem",
"type": "main",
"index": 0
}
],
[
{
"node": "Enviar mensagem n\u00e3o suportada",
"type": "main",
"index": 0
}
]
]
},
"Enviar mensagem n\u00e3o suportada": {
"main": [
[]
]
},
"Google Gemini Chat Model": {
"ai_languageModel": [
[
{
"node": "Assistente de viagens",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Simple Memory": {
"ai_memory": [
[
{
"node": "Assistente de viagens",
"type": "ai_memory",
"index": 0
}
]
]
},
"Buscar locais de interesse": {
"ai_tool": [
[
{
"node": "Assistente de viagens",
"type": "ai_tool",
"index": 0
}
]
]
},
"Assistente de viagens": {
"main": [
[
{
"node": "Responder usu\u00e1rio.",
"type": "main",
"index": 0
}
]
]
},
"Salvar despesa": {
"ai_tool": [
[
{
"node": "Assistente de viagens",
"type": "ai_tool",
"index": 0
}
]
]
},
"Listar despesas": {
"ai_tool": [
[
{
"node": "Assistente de viagens",
"type": "ai_tool",
"index": 0
}
]
]
},
"Refletir": {
"ai_tool": [
[
{
"node": "Assistente de viagens",
"type": "ai_tool",
"index": 0
}
]
]
},
"Download imagem": {
"main": [
[
{
"node": "Upload arquivo",
"type": "main",
"index": 0
},
{
"node": "Converter base64",
"type": "main",
"index": 0
}
]
]
},
"Extrair dados comprovante": {
"main": [
[
{
"node": "Assistente de viagens",
"type": "main",
"index": 0
}
]
]
},
"Converter base64": {
"main": [
[
{
"node": "Merge",
"type": "main",
"index": 1
}
]
]
},
"Upload arquivo": {
"main": [
[
{
"node": "Merge",
"type": "main",
"index": 0
}
]
]
},
"Merge": {
"main": [
[
{
"node": "Extrair dados comprovante",
"type": "main",
"index": 0
}
]
]
}
}
}
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About this workflow
N8N Workflow. Uses localFileTrigger, executeCommand, readWriteFile. Event-driven trigger; 16 nodes.
Source: https://github.com/ark5234/clara_assignment/blob/e35b53bec50cd8973bce2a925940ece6c52e1efd/workflows/n8n_workflow.json — original creator credit. Request a take-down →
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