Weather via Slack

工作流概述

这是一个包含5个节点的中等工作流,主要用于自动化处理各种任务。

工作流源代码

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{
  "id": "B6UHILmjPWa7ViQ4",
  "meta": {
    "instanceId": "ecc960f484e18b0e09045fd93acf0d47f4cfff25cc212ea348a08ac3aae81850",
    "templateCredsSetupCompleted": true
  },
  "name": "Weather via Slack",
  "tags": [
    {
      "id": "2KlkHxhULPP42BS6",
      "name": "App 72",
      "createdAt": "2025-02-19T21:15:27.390Z",
      "updatedAt": "2025-02-19T21:15:27.390Z"
    },
    {
      "id": "aw8suPYTKfXDtMZl",
      "name": "Utility",
      "createdAt": "2025-02-10T14:41:49.045Z",
      "updatedAt": "2025-02-10T14:41:49.045Z"
    }
  ],
  "nodes": [
    {
      "id": "9aea370b-7eb9-4742-9663-6628513e4de3",
      "name": "Webhook",
      "type": "n8n-nodes-base.webhook",
      "position": [
        -340,
        -300
      ],
      "webhookId": "41a60a4f-66d0-433b-aa43-b225dffa6761",
      "parameters": {
        "path": "slack1",
        "options": {},
        "httpMethod": "POST"
      },
      "typeVersion": 2
    },
    {
      "id": "c982487f-076a-48e8-9a35-78e8fbfb8936",
      "name": "Slack",
      "type": "n8n-nodes-base.slack",
      "position": [
        560,
        -300
      ],
      "webhookId": "4840f197-e116-4ef5-9372-0abd063e4aad",
      "parameters": {
        "text": "={{
  JSON.parse($node[\"NWS1\"].json.data).properties.periods
  .map(period => 
    `*${period.name}*\n` +
    `Temp: ${period.temperature}°${period.temperatureUnit}\n` +
    `Wind: ${period.windSpeed} ${period.windDirection}\n` +
    `Forecast: ${period.shortForecast}`
  )
  .join(\"\n\n\")
}}
",
        "select": "channel",
        "channelId": {
          "__rl": true,
          "mode": "list",
          "value": "C0889718P8S",
          "cachedResultName": "n8n"
        },
        "otherOptions": {},
        "authentication": "oAuth2"
      },
      "credentials": {
        "slackOAuth2Api": {
          "id": "GSiEiuKBz8GR5qiD",
          "name": "AlexK Slack account"
        }
      },
      "typeVersion": 2.3
    },
    {
      "id": "7d42112a-0590-4a09-ba0e-dbdf1eddccf2",
      "name": "OpenStreetMap",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        -100,
        -300
      ],
      "parameters": {
        "url": "https://nominatim.openstreetmap.org/search",
        "options": {
          "response": {
            "response": {
              "fullResponse": true
            }
          }
        },
        "sendQuery": true,
        "sendHeaders": true,
        "queryParameters": {
          "parameters": [
            {
              "name": "q",
              "value": "={{ $('Webhook').item.json.body.text }}"
            },
            {
              "name": "format",
              "value": "json"
            }
          ]
        },
        "headerParameters": {
          "parameters": [
            {
              "name": "User-Agent",
              "value": "alexk1919 (alex@alexk1919.com)"
            }
          ]
        }
      },
      "typeVersion": 4.2
    },
    {
      "id": "565a0123-9059-4e6e-be97-96e0875c1b84",
      "name": "NWS",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        120,
        -300
      ],
      "parameters": {
        "url": "=https://api.weather.gov/points/{{ $json.body[0].lat }},{{ $json.body[0].lon }}",
        "options": {
          "response": {
            "response": {
              "fullResponse": true
            }
          }
        },
        "sendHeaders": true,
        "headerParameters": {
          "parameters": [
            {
              "name": "User-Agent",
              "value": "alexk1919 (alex@alexk1919.com)"
            }
          ]
        }
      },
      "typeVersion": 4.2
    },
    {
      "id": "3505e6c2-6e66-4abd-a1bb-75a1d8fc9a08",
      "name": "NWS1",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        340,
        -300
      ],
      "parameters": {
        "url": "=https://api.weather.gov/gridpoints/{{$json[\"data\"] ? JSON.parse($json[\"data\"]).properties.gridId : \"\"}}
/{{$json[\"data\"] ? JSON.parse($json[\"data\"]).properties.gridX : \"\"}}
,{{$json[\"data\"] ? JSON.parse($json[\"data\"]).properties.gridY : \"\"}}
/forecast",
        "options": {
          "response": {
            "response": {
              "fullResponse": true
            }
          }
        },
        "sendHeaders": true,
        "headerParameters": {
          "parameters": [
            {
              "name": "User-Agent",
              "value": "alexk1919 (alex@alexk1919.com)"
            }
          ]
        }
      },
      "typeVersion": 4.2
    }
  ],
  "active": true,
  "pinData": {},
  "settings": {
    "executionOrder": "v1"
  },
  "versionId": "4244c90f-02e9-42fc-9873-3f8074f6ecf4",
  "connections": {
    "NWS": {
      "main": [
        [
          {
            "node": "NWS1",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "NWS1": {
      "main": [
        [
          {
            "node": "Slack",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Slack": {
      "main": [
        []
      ]
    },
    "Webhook": {
      "main": [
        [
          {
            "node": "OpenStreetMap",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "OpenStreetMap": {
      "main": [
        [
          {
            "node": "NWS",
            "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

  • Webhook
  • Slack
  • Httprequest

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

  1. 在n8n中导入工作流JSON文件
  2. 配置Gmail节点的认证信息
  3. 设置AI分类器的API密钥
  4. 自定义分类规则和标签映射
  5. 测试工作流执行
  6. 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