掌握n8n中常用的Workflow设计模式: 事件驱动, 批Processing, Scheduled Task, Error恢复和子Workflow.
Webhook触发→Processing→响应. 适合实时Scenario: 表单Submit Processing, 支付回调, Git Hub事件. n8n的Webhook节点支持GET/POST, 可以立即响应或异步Processing. 注意Settings认证防止未授权调用.
Scheduled触发→获取Batch Data→循环Processing→Summary结果. 适合: 每日报表Generation, Batch Email Send, Data Sync. 使用Split InBatches节点控制并发, 避免API限流. Settings进度记录支持断点续传.
主流程→Error捕获→重试/降级/Notification. n8n的Error Trigger捕获Workflow Error. 设计: 关键步骤加try-catch→Failed写入重试队列→Scheduled重试→超过次数告警. 确保Data不丢失.
将通用逻辑封装为子Workflow, 主Workflow通过Execute Workflow节点调用. 好处: 代码复用, 独立Test, Permission隔离. 例如: "Send Notification"子Workflow被多个主Workflow共用.
用Data库记录Processing Status, Workflow根据Status执行不同逻辑. 适合多步骤长流程: Order Processing (待支付→已支付→已发货→Completed) . 每步Complete Update Status, Anomaly时可从断点恢复.
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