Google Sheets Record Receipt
工作流概述
这是一个包含12个节点的复杂工作流,主要用于自动化处理各种任务。
工作流源代码
{
"id": "QOePbDNCilLhfzbs",
"meta": {
"instanceId": "2c12b0b552404dc07af67cd5f092afd21d18c808d4fdabdb04cb4b064195b6fb",
"templateCredsSetupCompleted": true
},
"name": "LINE BOT - Google Sheets Record Receipt",
"tags": [],
"nodes": [
{
"id": "c9a6882e-8971-4f8b-8dc4-730e217200f9",
"name": "Sticky Note",
"type": "n8n-nodes-base.stickyNote",
"position": [
-1260,
100
],
"parameters": {
"width": 400,
"height": 500,
"content": "## Prepare data
**- Get content image from Line**
https://api-data.line.me/v2/bot/message/xxx/content
**- Get image URL to Binary**"
},
"typeVersion": 1
},
{
"id": "b766ad37-ec63-4006-80a7-048307afd23a",
"name": "Image slip URL in Line",
"type": "n8n-nodes-base.set",
"position": [
-1200,
300
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "f8b8ac7c-5c5f-452f-a84d-e068bb248eb5",
"name": "file_url",
"type": "string",
"value": "=https://api-data.line.me/v2/bot/message/{{ $json.body.events[0].message.id }}/content"
}
]
}
},
"typeVersion": 3.4
},
{
"id": "172ed09e-8caf-4bee-9f09-a9b8b00470f7",
"name": "Get image to Binary",
"type": "n8n-nodes-base.httpRequest",
"position": [
-1000,
300
],
"parameters": {
"url": "={{ $json.file_url }}",
"options": {},
"authentication": "genericCredentialType",
"genericAuthType": "httpHeaderAuth"
},
"credentials": {
"httpHeaderAuth": {
"id": "byY3kI23lMe4ewnM",
"name": "Header Auth account - Maid"
}
},
"typeVersion": 4.2
},
{
"id": "79753b3d-d6a9-4047-af48-947e6221de48",
"name": "Line Chat Bot",
"type": "n8n-nodes-base.webhook",
"position": [
-1440,
300
],
"webhookId": "23ba996d-3242-42a1-946c-f04a680b320a",
"parameters": {
"path": "23ba996d-3242-42a1-946c-f04a680b320a",
"options": {},
"httpMethod": "POST"
},
"typeVersion": 1
},
{
"id": "91837828-c24d-4999-a6db-9323394b8e77",
"name": "Sticky Note1",
"type": "n8n-nodes-base.stickyNote",
"position": [
-840,
100
],
"parameters": {
"color": 2,
"width": 220,
"height": 500,
"content": "## Upload image to Google Drive
"
},
"typeVersion": 1
},
{
"id": "94be83d7-5070-4f94-ae33-0a9695fc0b25",
"name": "Sticky Note2",
"type": "n8n-nodes-base.stickyNote",
"position": [
-600,
100
],
"parameters": {
"color": 3,
"width": 540,
"height": 500,
"content": "## OCR and get value
**- OCR API by SpaceOCR**
https://api.ocr.space/parse/imageurl?apikey=YOURAPI&language=tha&isOverlayRequired=false&OCREngine=2&filetype=JPG&url=xxx
**- Parse Transaction Details**"
},
"typeVersion": 1
},
{
"id": "5e269f18-c666-4ba3-bb92-e60f5761cf0e",
"name": "Sticky Note3",
"type": "n8n-nodes-base.stickyNote",
"position": [
-40,
100
],
"parameters": {
"color": 5,
"width": 220,
"height": 500,
"content": "## Store Data in Google Sheets"
},
"typeVersion": 1
},
{
"id": "aa5312d8-304c-4d64-839b-a4464cb0d60e",
"name": "Sticky Note4",
"type": "n8n-nodes-base.stickyNote",
"position": [
-1500,
100
],
"parameters": {
"color": 5,
"width": 220,
"height": 500,
"content": "## LINE Webhook Trigger
**(Receive Image)**"
},
"typeVersion": 1
},
{
"id": "802a7b11-38bf-4dd1-ae32-cd6b6071b9dd",
"name": "Upload image to Google Drive",
"type": "n8n-nodes-base.googleDrive",
"position": [
-780,
300
],
"parameters": {
"name": "={{ $('Line Chat Bot').item.json.body.events[0].message.id }}.jpg",
"driveId": {
"__rl": true,
"mode": "list",
"value": "My Drive"
},
"options": {},
"folderId": {
"__rl": true,
"mode": "url",
"value": "https://drive.google.com/drive/folders/1M-j_Gt6yKM1K8SISWknaGQyPQn52AaK1"
}
},
"credentials": {
"googleDriveOAuth2Api": {
"id": "QVrgALkld7whKIgB",
"name": "Google Drive account - Peakwave"
}
},
"typeVersion": 3
},
{
"id": "b37b4b7a-1030-44d0-8f57-90acca085e5a",
"name": "Record in Google Sheets",
"type": "n8n-nodes-base.googleSheets",
"position": [
20,
300
],
"parameters": {
"columns": {
"value": {
"Fee": "={{ $json.fee }}",
"Amount": "={{ $json.amount }}",
"Date & Time": "={{ $json.date_time }}",
"Sender Name": "={{ $json.sender_name }}",
"Receiver Bank": "={{ $json.receiver_bank }}",
"Receiver Name": "={{ $json.receiver_name }}",
"Sender Account": "={{ $json.sender_account }}",
"Transaction ID": "={{ $json.transaction_id }}",
"Receiver Account": "={{ $json.receiver_account }}",
"Transaction Type": "={{ $json.transaction_type }}"
},
"schema": [
{
"id": "Transaction Type",
"type": "string",
"display": true,
"removed": false,
"required": false,
"displayName": "Transaction Type",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "Date & Time",
"type": "string",
"display": true,
"removed": false,
"required": false,
"displayName": "Date & Time",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "Bank",
"type": "string",
"display": true,
"removed": true,
"required": false,
"displayName": "Bank",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "Sender Name",
"type": "string",
"display": true,
"removed": false,
"required": false,
"displayName": "Sender Name",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "Sender Account",
"type": "string",
"display": true,
"removed": false,
"required": false,
"displayName": "Sender Account",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "Receiver Name",
"type": "string",
"display": true,
"removed": false,
"required": false,
"displayName": "Receiver Name",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "Receiver Bank",
"type": "string",
"display": true,
"removed": false,
"required": false,
"displayName": "Receiver Bank",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "Receiver Account",
"type": "string",
"display": true,
"removed": false,
"required": false,
"displayName": "Receiver Account",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "Transaction ID",
"type": "string",
"display": true,
"removed": false,
"required": false,
"displayName": "Transaction ID",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "Amount",
"type": "string",
"display": true,
"removed": false,
"required": false,
"displayName": "Amount",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "Fee",
"type": "string",
"display": true,
"removed": false,
"required": false,
"displayName": "Fee",
"defaultMatch": false,
"canBeUsedToMatch": true
}
],
"mappingMode": "defineBelow",
"matchingColumns": [],
"attemptToConvertTypes": false,
"convertFieldsToString": false
},
"options": {},
"operation": "append",
"sheetName": {
"__rl": true,
"mode": "list",
"value": "gid=0",
"cachedResultUrl": "https://docs.google.com/spreadsheets/d/1IpvzcnWmb-aLpSleTIF0xoF8xzbOOJQhuT6ITAeEQks/edit#gid=0",
"cachedResultName": "data"
},
"documentId": {
"__rl": true,
"mode": "url",
"value": "https://docs.google.com/spreadsheets/d/1IpvzcnWmb-aLpSleTIF0xoF8xzbOOJQhuT6ITAeEQks/edit?gid=0#gid=0"
}
},
"credentials": {
"googleSheetsOAuth2Api": {
"id": "0RVWjnYzlWor2bMu",
"name": "Google Sheets account"
}
},
"typeVersion": 4.5
},
{
"id": "22fbba4f-ad1f-43a5-99de-db7084cd3fc5",
"name": "Send Image URL to OCR Space for Text Extraction",
"type": "n8n-nodes-base.httpRequest",
"position": [
-520,
300
],
"parameters": {
"url": "=https://api.ocr.space/parse/imageurl?apikey=K82173083188957&language=tha&isOverlayRequired=false&OCREngine=2&filetype=JPG&url={{ \"https://drive.google.com/uc?id=\" + $json[\"id\"] }}
",
"options": {}
},
"typeVersion": 4.2
},
{
"id": "678993d0-8301-42d5-93cd-7839d42b71bc",
"name": "Extract Transaction Details",
"type": "n8n-nodes-base.code",
"position": [
-260,
300
],
"parameters": {
"jsCode": "const text = $json[\"ParsedResults\"][0][\"ParsedText\"];
// Split text by line breaks and trim spaces
const lines = text.split(\"\n\").map(line => line.trim());
// Debugging: Log extracted lines for verification
console.log(\"Extracted Lines:\", lines);
// Helper function to find text after a keyword, with OCR variations
function getValueAfterKeyword(keywords, offset = 1) {
let index = lines.findIndex(line => keywords.some(keyword => line.includes(keyword)));
return index !== -1 && lines[index + offset] ? lines[index + offset] : null;
}
// **Extracting Data for Both Standard & PromptPay Transactions**
const transaction_type = lines[0] || null; // First line
const date_time = lines[1] || null; // Second line
// **Sender Details**
const sender_name_index = lines.findIndex(line => line.startsWith(\"นาย\"));
const sender_name = sender_name_index !== -1 ? lines[sender_name_index] : null;
const sender_bank = sender_name_index !== -1 ? lines[sender_name_index + 1] : null;
const sender_account = sender_name_index !== -1 ? lines[sender_name_index + 2] : null;
// **Determine if it's a Standard Bank Transfer or PromptPay**
const isPromptPay = lines.some(line => line.includes(\"Prompt\") || line.includes(\"รหัสพร้อมเพย์\"));
let receiver_name = null;
let receiver_bank = null;
let receiver_account = null;
if (isPromptPay) {
// **Handling PromptPay Transactions**
const receiver_index = lines.findIndex(line => line.includes(\"Prompt\"));
receiver_bank = \"PromptPay\"; // Fixed for PromptPay transactions
receiver_name = receiver_index !== -1 ? lines[receiver_index + 2] : null; // Receiver's actual name
// **Fix Receiver Account for PromptPay**
const receiver_account_index = lines.findIndex(line => line.includes(\"รหัสพร้อมเพย์\"));
receiver_account = receiver_account_index !== -1 ? lines[receiver_account_index + 1] : null; // The actual account number
} else {
// **Handling Standard Bank Transfers**
const receiver_index = lines.findIndex(line => line.includes(\"นิติบุคคล\") || line.includes(\"บริษัท\") || line.includes(\"นาย\"));
receiver_name = receiver_index !== -1 ? lines[receiver_index] : null;
receiver_bank = receiver_index !== -1 ? lines[receiver_index + 2] : null;
receiver_account = receiver_index !== -1 ? lines[receiver_index + 3] : null;
}
// **Fix Transaction ID Extraction**
let transaction_id = null;
// **First, try \"เลขที่รายการ:\" for Standard Transactions**
const transaction_index = lines.findIndex(line => line.includes(\"เลขที่รายการ:\"));
if (transaction_index !== -1) {
if (/\d{10,}/.test(lines[transaction_index])) {
// If the same line contains the transaction ID, extract it
transaction_id = lines[transaction_index].match(/\d{10,}/)[0];
} else if (transaction_index + 1 < lines.length && /\d{10,}/.test(lines[transaction_index + 1])) {
// If transaction ID is on the next line, extract it
transaction_id = lines[transaction_index + 1];
}
}
// ✅ **If transaction_id is still missing, use \"จำนวน:\" or possible OCR errors (\"จำนวนะ\")**
if (!transaction_id) {
let amount_index = lines.findIndex(line => line.includes(\"จำนวน\") || line.includes(\"จำนวนะ\"));
if (amount_index !== -1) {
for (let i = amount_index + 1; i < lines.length; i++) {
if (/^[A-Za-z0-9]+$/.test(lines[i])) { // Ensure it's a valid ID
transaction_id = lines[i];
break; // **Break early for efficiency**
}
}
}
}
// **Extract Amount Correctly**
const amount_index = lines.findIndex(line => line.includes(\"บาท\") && !line.includes(\"ค่าธรรมเนียม\"));
const amount = amount_index !== -1 ? lines[amount_index].replace(\" บาท\", \"\").replace(/[^0-9.]/g, \"\") : null;
// **Extract Fee Correctly**
const fee_index = lines.findIndex(line => line.includes(\"ค่าธรรมเนียม\"));
const fee = fee_index !== -1 && lines[fee_index + 1] ? lines[fee_index + 1].replace(\" บาท\", \"\").replace(/[^0-9.]/g, \"\") : null;
// **Ensure Essential Details Exist**
if (transaction_type && date_time && sender_name && sender_bank && sender_account && receiver_name && receiver_bank && receiver_account && transaction_id && amount) {
return [
{
json: {
\"transaction_type\": transaction_type,
\"date_time\": date_time,
\"sender_name\": sender_name,
\"sender_bank\": sender_bank,
\"sender_account\": sender_account,
\"receiver_name\": receiver_name,
\"receiver_bank\": receiver_bank,
\"receiver_account\": receiver_account,
\"transaction_id\": transaction_id,
\"amount\": amount,
\"fee\": fee
}
}
];
} else {
return [
{
json: {
\"error\": \"Some values could not be extracted\",
\"raw_text\": text
}
}
];
}
"
},
"typeVersion": 2
}
],
"active": false,
"pinData": {},
"settings": {
"executionOrder": "v1"
},
"versionId": "e1708774-49cf-4cbb-a4c4-9fefccd0fedb",
"connections": {
"Line Chat Bot": {
"main": [
[
{
"node": "Image slip URL in Line",
"type": "main",
"index": 0
}
]
]
},
"Get image to Binary": {
"main": [
[
{
"node": "Upload image to Google Drive",
"type": "main",
"index": 0
}
]
]
},
"Image slip URL in Line": {
"main": [
[
{
"node": "Get image to Binary",
"type": "main",
"index": 0
}
]
]
},
"Extract Transaction Details": {
"main": [
[
{
"node": "Record in Google Sheets",
"type": "main",
"index": 0
}
]
]
},
"Upload image to Google Drive": {
"main": [
[
{
"node": "Send Image URL to OCR Space for Text Extraction",
"type": "main",
"index": 0
}
]
]
},
"Send Image URL to OCR Space for Text Extraction": {
"main": [
[
{
"node": "Extract Transaction Details",
"type": "main",
"index": 0
}
]
]
}
}
}
功能特点
- 自动检测新邮件
- AI智能内容分析
- 自定义分类规则
- 批量处理能力
- 详细的处理日志
技术分析
节点类型及作用
- Stickynote
- Set
- Httprequest
- Webhook
- Googledrive
复杂度评估
配置难度:
维护难度:
扩展性:
实施指南
前置条件
- 有效的Gmail账户
- n8n平台访问权限
- Google API凭证
- AI分类服务订阅
配置步骤
- 在n8n中导入工作流JSON文件
- 配置Gmail节点的认证信息
- 设置AI分类器的API密钥
- 自定义分类规则和标签映射
- 测试工作流执行
- 配置定时触发器(可选)
关键参数
| 参数名称 | 默认值 | 说明 |
|---|---|---|
| maxEmails | 50 | 单次处理的最大邮件数量 |
| confidenceThreshold | 0.8 | 分类置信度阈值 |
| autoLabel | true | 是否自动添加标签 |
最佳实践
优化建议
- 定期更新AI分类模型以提高准确性
- 根据邮件量调整处理批次大小
- 设置合理的分类置信度阈值
- 定期清理过期的分类规则
安全注意事项
- 妥善保管API密钥和认证信息
- 限制工作流的访问权限
- 定期审查处理日志
- 启用双因素认证保护Gmail账户
性能优化
- 使用增量处理减少重复工作
- 缓存频繁访问的数据
- 并行处理多个邮件分类任务
- 监控系统资源使用情况
故障排除
常见问题
邮件未被正确分类
检查AI分类器的置信度阈值设置,适当降低阈值或更新训练数据。
Gmail认证失败
确认Google API凭证有效且具有正确的权限范围,重新进行OAuth授权。
调试技巧
- 启用详细日志记录查看每个步骤的执行情况
- 使用测试邮件验证分类逻辑
- 检查网络连接和API服务状态
- 逐步执行工作流定位问题节点
错误处理
工作流包含以下错误处理机制:
- 网络超时自动重试(最多3次)
- API错误记录和告警
- 处理失败邮件的隔离机制
- 异常情况下的回滚操作