Flux Dev Image Generation Fal.ai
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": "nJwkSOrJIFvutw1n",
"meta": {
"instanceId": "08daa2aa5b6032ff63690600b74f68f5b0f34a3b100102e019b35c4419168977"
},
"name": "Flux Dev Image Generation Fal.ai",
"tags": [],
"nodes": [
{
"id": "00f3a7d9-9931-40a4-8eb5-5b9086d6995c",
"name": "Fal Flux",
"type": "n8n-nodes-base.httpRequest",
"position": [
420,
0
],
"parameters": {
"url": "https://queue.fal.run/fal-ai/flux/dev",
"method": "POST",
"options": {},
"jsonBody": "={
\"prompt\": \"{{ $json.Prompt }}\",
\"image_size\": {
\"width\": {{ $json.Width }},
\"height\": {{ $json.Height }}
},
\"num_inference_steps\": {{ $json.Steps }},
\"guidance_scale\": {{ $json.Guidance }},
\"num_images\": 1,
\"enable_safety_checker\": true
}",
"sendBody": true,
"specifyBody": "json",
"authentication": "genericCredentialType",
"genericAuthType": "httpHeaderAuth"
},
"credentials": {
"httpHeaderAuth": {
"id": "lNxvZHlUafPAHBYN",
"name": "Fal Flux Header Auth account"
}
},
"typeVersion": 4.2
},
{
"id": "3032a543-2e21-415e-a5bd-d56ea33e4411",
"name": "Get Image Result URL",
"type": "n8n-nodes-base.httpRequest",
"position": [
1220,
-20
],
"parameters": {
"url": "=https://queue.fal.run/fal-ai/flux/requests/{{ $json.request_id }}",
"options": {},
"authentication": "genericCredentialType",
"genericAuthType": "httpHeaderAuth"
},
"credentials": {
"httpHeaderAuth": {
"id": "lNxvZHlUafPAHBYN",
"name": "Fal Flux Header Auth account"
}
},
"typeVersion": 4.2
},
{
"id": "56e13e53-1697-4970-9bea-b75e0e849425",
"name": "Download Image",
"type": "n8n-nodes-base.httpRequest",
"position": [
1400,
-20
],
"parameters": {
"url": "={{ $json.images[0].url }}",
"options": {}
},
"typeVersion": 4.2
},
{
"id": "dd2efd2c-8712-4a77-8786-cccebdec876b",
"name": "Google Drive",
"type": "n8n-nodes-base.googleDrive",
"position": [
1580,
-20
],
"parameters": {
"name": "={{ $binary.data.fileName }}",
"driveId": {
"__rl": true,
"mode": "list",
"value": "My Drive"
},
"options": {},
"folderId": {
"__rl": true,
"mode": "list",
"value": "1R3PSyHXWHlY9DRFdOUEAPEop2fZy-_-K",
"cachedResultUrl": "https://drive.google.com/drive/folders/1R3PSyHXWHlY9DRFdOUEAPEop2fZy-_-K",
"cachedResultName": "Flux Image"
}
},
"credentials": {
"googleDriveOAuth2Api": {
"id": "CFiX9XTXGg4hGaGV",
"name": "Google Drive account"
}
},
"typeVersion": 3
},
{
"id": "a598d868-0461-41fc-b6aa-f9998e9d6146",
"name": "When clicking ‘Test workflow’",
"type": "n8n-nodes-base.manualTrigger",
"position": [
-60,
0
],
"parameters": {},
"typeVersion": 1
},
{
"id": "a576d7b6-b2f3-4d53-8e7f-bb6449ff9c64",
"name": "Sticky Note",
"type": "n8n-nodes-base.stickyNote",
"position": [
80,
-120
],
"parameters": {
"width": 260,
"height": 120,
"content": "## Set Parameter Here
set Image Prompt and related settings"
},
"typeVersion": 1
},
{
"id": "d39e85a8-3ddd-4f10-ba4c-beb86a850e10",
"name": "Wait 3 Sec",
"type": "n8n-nodes-base.wait",
"position": [
640,
0
],
"webhookId": "61a8626c-e281-4d4b-abb0-b9d87d1b4e7c",
"parameters": {
"amount": 3
},
"typeVersion": 1.1
},
{
"id": "b27ac2f1-3f14-467e-81c4-af8b8fb37138",
"name": "Check Status",
"type": "n8n-nodes-base.httpRequest",
"position": [
840,
0
],
"parameters": {
"url": "=https://queue.fal.run/fal-ai/flux/requests/{{ $json.request_id }}/status",
"options": {},
"authentication": "genericCredentialType",
"genericAuthType": "httpHeaderAuth"
},
"credentials": {
"httpHeaderAuth": {
"id": "lNxvZHlUafPAHBYN",
"name": "Fal Flux Header Auth account"
}
},
"typeVersion": 4.2
},
{
"id": "7ee45dab-8e31-44de-bbb1-e99a565ee19c",
"name": "Completed?",
"type": "n8n-nodes-base.if",
"position": [
1020,
0
],
"parameters": {
"options": {},
"conditions": {
"options": {
"version": 2,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "strict"
},
"combinator": "and",
"conditions": [
{
"id": "299a7c34-dcff-4991-a73f-5b1a84f188ea",
"operator": {
"name": "filter.operator.equals",
"type": "string",
"operation": "equals"
},
"leftValue": "={{ $json.status }}",
"rightValue": "COMPLETED"
}
]
}
},
"typeVersion": 2.2
},
{
"id": "c5036a7d-1879-449f-8ce9-9c1cf2c7426b",
"name": "Sticky Note1",
"type": "n8n-nodes-base.stickyNote",
"position": [
1300,
-100
],
"parameters": {
"width": 220,
"height": 100,
"content": "## Set Drive Folder Here "
},
"typeVersion": 1
},
{
"id": "c8887168-6234-486c-b7cb-cc0752c6341c",
"name": "Sticky Note2",
"type": "n8n-nodes-base.stickyNote",
"position": [
360,
-180
],
"parameters": {
"width": 260,
"height": 180,
"content": "### Generic Credential Type
### Header : Authorization
Key $FAL_KEY\"
for example:
Key 6f2960baxxxxxxxxx"
},
"typeVersion": 1
},
{
"id": "587043c4-e808-4c3f-910f-60f5eb8aff15",
"name": "Edit Fields",
"type": "n8n-nodes-base.set",
"position": [
180,
0
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "f0a033cf-fa2b-4930-93b9-ff9c45fa7c14",
"name": "Prompt",
"type": "string",
"value": "Thai young woman net idol 25 yrs old, walking on the street"
},
{
"id": "2b56185d-5c61-4c17-85f1-53ac4aab2b18",
"name": "Width",
"type": "number",
"value": 1024
},
{
"id": "51eb65c0-ae0a-4ce7-ab00-9d13f05ce1e6",
"name": "Height",
"type": "number",
"value": 768
},
{
"id": "8e89fca7-d380-4876-b973-69caa0394bc5",
"name": "Steps",
"type": "number",
"value": 30
},
{
"id": "875e06b7-352a-4dde-8595-3274e9969c9c",
"name": "Guidance",
"type": "number",
"value": 3.5
}
]
}
},
"typeVersion": 3.4
}
],
"active": false,
"pinData": {},
"settings": {
"executionOrder": "v1"
},
"versionId": "82877b10-5bbc-4c59-828b-4abc3ad53a5f",
"connections": {
"Fal Flux": {
"main": [
[
{
"node": "Wait 3 Sec",
"type": "main",
"index": 0
}
]
]
},
"Completed?": {
"main": [
[
{
"node": "Get Image Result URL",
"type": "main",
"index": 0
}
],
[
{
"node": "Wait 3 Sec",
"type": "main",
"index": 0
}
]
]
},
"Wait 3 Sec": {
"main": [
[
{
"node": "Check Status",
"type": "main",
"index": 0
}
]
]
},
"Edit Fields": {
"main": [
[
{
"node": "Fal Flux",
"type": "main",
"index": 0
}
]
]
},
"Check Status": {
"main": [
[
{
"node": "Completed?",
"type": "main",
"index": 0
}
]
]
},
"Download Image": {
"main": [
[
{
"node": "Google Drive",
"type": "main",
"index": 0
}
]
]
},
"Get Image Result URL": {
"main": [
[
{
"node": "Download Image",
"type": "main",
"index": 0
}
]
]
},
"When clicking ‘Test workflow’": {
"main": [
[
{
"node": "Edit Fields",
"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
- Httprequest
- Googledrive
- Manualtrigger
- Stickynote
- Wait
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