{
"id": "aLTkMiEDYXbMK4fT",
"meta": {
"instanceId": "5b860a91d7844b5237bb51cc58691ca8c3dc5b576f42d4d6bbedfb8d43d58ece",
"templateCredsSetupCompleted": true
},
"name": "AI agent: expense tracker in Google Sheets and n8n chat",
"tags": [],
"nodes": [
{
"id": "9260b53e-6848-4f34-9643-311c58c807f6",
"name": "AI Agent",
"type": "@n8n/n8n-nodes-langchain.agent",
"position": [
360,
40
],
"parameters": {
"options": {
"maxIterations": 3,
"systemMessage": "You are a helpful accountant. Use save to db tool to save expense message to DB. respond with \"Your expense saved, here is the output of save sub-workflow:[data]\""
}
},
"typeVersion": 1.7
},
{
"id": "0d7a686c-42c2-4223-9f78-b454788fb6da",
"name": "When chat message received",
"type": "@n8n/n8n-nodes-langchain.chatTrigger",
"position": [
0,
40
],
"webhookId": "6a34ec84-459d-4cc4-83b6-06ae4c99dc8f",
"parameters": {
"options": {}
},
"typeVersion": 1.1
},
{
"id": "f1f27aaf-cf13-40d9-b8f9-800a862f8bf0",
"name": "Workflow Input Trigger",
"type": "n8n-nodes-base.executeWorkflowTrigger",
"position": [
180,
600
],
"parameters": {
"workflowInputs": {
"values": [
{
"name": "input1"
}
]
}
},
"typeVersion": 1.1
},
{
"id": "a1530601-1a91-45be-adef-2e0608bfe773",
"name": "OpenAI Chat Model",
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"position": [
340,
300
],
"parameters": {
"options": {}
},
"credentials": {
"openAiApi": {
"id": "vHFEeel4RHFsjcMI",
"name": "OpenAi account"
}
},
"typeVersion": 1.1
},
{
"id": "c6f9782e-6b9b-421e-8b10-9ef04cbbee8c",
"name": "Window Buffer Memory",
"type": "@n8n/n8n-nodes-langchain.memoryBufferWindow",
"position": [
500,
300
],
"parameters": {},
"typeVersion": 1.3
},
{
"id": "bbe1116a-1c66-496e-a9bf-747457e47bb0",
"name": "Sticky Note",
"type": "n8n-nodes-base.stickyNote",
"position": [
-760,
200
],
"parameters": {
"width": 720,
"height": 500,
"content": "## Save your expenses via chat message. \n\nLLM will parse your message to structured JSON and save as a new row into Google Sheet.\n\n## Installation\n### 1. Set up Google Sheets:\nClone this Sheet:\nhttps://docs.google.com/spreadsheets/d/1D0r3tun7LF7Ypb21CmbTKEtn76WE-kaHvBCM5NdgiPU/edit?gid=0#gid=0\n\n(File -> Make a copy)\n\nChoose this sheet into \"Save expense into Google Sheets\" node.\n\n\n### 2. Fix sub-workflow dropdown: \nopen \"Parse msg and save to Sheets\" node (which is an n8n sub-workflow executor tool) and choose the SAME workflow in the dropdown. it will allow n8n to call \"Workflow Input Trigger\" properly when needed.\n\n\n### 3. Activate the workflow to make chat work properly.\nSent message to chat, something like \"car wash; 59.3 usd; 25 jan 2024\"\n\nyou should get a response:\nYour expense saved, here is the output of save sub-workflow:{\"cost\":59.3,\"descr\":\"car wash\",\"date\":\"2024-01-25\",\"msg\":\"car wash; 59.3 usd; 25 jan 2024\"}\n\nand new row in Google sheets should be inserted!"
},
"typeVersion": 1
},
{
"id": "61a489f7-5b95-438a-81f0-1e3e8c445622",
"name": "OpenAI Chat Model1",
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"position": [
400,
900
],
"parameters": {
"options": {}
},
"credentials": {
"openAiApi": {
"id": "vHFEeel4RHFsjcMI",
"name": "OpenAi account"
}
},
"typeVersion": 1.1
},
{
"id": "57908f61-ed9b-41a9-aba6-031bfc65bd31",
"name": "Expense text to JSON parser",
"type": "@n8n/n8n-nodes-langchain.informationExtractor",
"position": [
400,
600
],
"parameters": {
"text": "=convert expense to JSON: \n\n{{ $json.input1 }}",
"options": {},
"attributes": {
"attributes": [
{
"name": "cost",
"type": "number",
"required": true,
"description": "expense cost"
},
{
"name": "descr",
"required": true,
"description": "description of expense"
},
{
"name": "date",
"type": "date",
"description": "date in UTC format. "
}
]
}
},
"typeVersion": 1
},
{
"id": "23f123eb-c4d9-4e6c-a521-311498d40d61",
"name": "Save expense into Google Sheets",
"type": "n8n-nodes-base.googleSheets",
"position": [
760,
600
],
"parameters": {
"columns": {
"value": {
"msg": "={{ $('Workflow Input Trigger').item.json.input1 }}",
"cost": "={{ $json.output.cost }}",
"date": "={{ $json.output.date ? $json.output.date : $now }}",
"descr": "={{ $json.output.descr }}"
},
"schema": [
{
"id": "date",
"type": "string",
"display": true,
"removed": false,
"required": false,
"displayName": "date",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "cost",
"type": "string",
"display": true,
"removed": false,
"required": false,
"displayName": "cost",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "descr",
"type": "string",
"display": true,
"removed": false,
"required": false,
"displayName": "descr",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "msg",
"type": "string",
"display": true,
"removed": false,
"required": false,
"displayName": "msg",
"defaultMatch": false,
"canBeUsedToMatch": true
}
],
"mappingMode": "defineBelow",
"matchingColumns": [],
"attemptToConvertTypes": false,
"convertFieldsToString": false
},
"options": {
"useAppend": true
},
"operation": "append",
"sheetName": {
"__rl": true,
"mode": "list",
"value": "gid=0",
"cachedResultUrl": "https://docs.google.com/spreadsheets/d/1_BMLmh5MtmQarWuZIJANQZSkjaQ2Rc3YYLhwyz1Sec0/edit#gid=0",
"cachedResultName": "Sheet1"
},
"documentId": {
"__rl": true,
"mode": "list",
"value": "1_BMLmh5MtmQarWuZIJANQZSkjaQ2Rc3YYLhwyz1Sec0",
"cachedResultUrl": "https://docs.google.com/spreadsheets/d/1_BMLmh5MtmQarWuZIJANQZSkjaQ2Rc3YYLhwyz1Sec0/edit?usp=drivesdk",
"cachedResultName": "ai-expense"
}
},
"credentials": {
"googleSheetsOAuth2Api": {
"id": "vowsrhMIxy2PRDbH",
"name": "Google Sheets account"
}
},
"typeVersion": 4.5
},
{
"id": "83770030-eab1-499a-b743-fe639e34fbb2",
"name": "Parse msg and save to Sheets",
"type": "@n8n/n8n-nodes-langchain.toolWorkflow",
"notes": "Make sure that this SAME workflow is chosen in the Workflow dropdown!",
"position": [
660,
300
],
"parameters": {
"name": "save_expense_in_db",
"workflowId": {
"__rl": true,
"mode": "list",
"value": "aLTkMiEDYXbMK4fT",
"cachedResultName": "sub-workflow1"
},
"description": "Call this tool to save expense in db.",
"workflowInputs": {
"value": {
"input1": "={{ $json.chatInput }}"
},
"schema": [
{
"id": "input1",
"type": "string",
"display": true,
"removed": false,
"required": false,
"displayName": "input1",
"defaultMatch": false,
"canBeUsedToMatch": true
}
],
"mappingMode": "defineBelow",
"matchingColumns": [],
"attemptToConvertTypes": false,
"convertFieldsToString": false
}
},
"notesInFlow": true,
"typeVersion": 2
}
],
"active": true,
"pinData": {},
"settings": {
"executionOrder": "v1"
},
"versionId": "9ab1bbef-ffe8-462c-a201-920c6d250ade",
"connections": {
"OpenAI Chat Model": {
"ai_languageModel": [
[
{
"node": "AI Agent",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"OpenAI Chat Model1": {
"ai_languageModel": [
[
{
"node": "Expense text to JSON parser",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Window Buffer Memory": {
"ai_memory": [
[
{
"node": "AI Agent",
"type": "ai_memory",
"index": 0
}
]
]
},
"Workflow Input Trigger": {
"main": [
[
{
"node": "Expense text to JSON parser",
"type": "main",
"index": 0
}
]
]
},
"When chat message received": {
"main": [
[
{
"node": "AI Agent",
"type": "main",
"index": 0
}
]
]
},
"Expense text to JSON parser": {
"main": [
[
{
"node": "Save expense into Google Sheets",
"type": "main",
"index": 0
}
]
]
},
"Parse msg and save to Sheets": {
"ai_tool": [
[
{
"node": "AI Agent",
"type": "ai_tool",
"index": 0
}
]
]
}
}
}