工作流 3：监控工作流错误

¥Workflow 3: Monitoring workflow errors

最后，让我们帮助 Nathan 了解运行工作流时是否存在任何错误。

¥Last but not least, let's help Nathan know if there are any errors running the workflow.

要完成此任务，请创建一个监控主工作流的错误工作流：

¥To accomplish this task, create an Error workflow that monitors the main workflow:

1. 创建新工作流程。

¥Create a new workflow.

2. 添加一个错误触发节点（并将其作为测试执行）。

¥Add an Error Trigger node (and execute it as a test).

3. 将 Discord 节点连接到错误触发节点，并配置以下字段：
   

¥Connect a Discord node to the Error Trigger node and configure these fields:

• Webhook URL：你注册此课程时从 n8n 收到的电子邮件中的 Discord URL。

  ¥Webhook URL: The Discord URL that you received in the email from n8n when you signed up for this course.

• 文本：" 工作流 {workflow name} 失败，错误信息如下：{execution error message}。上次执行节点：{name of the last executed node}。在此处检查此工作流执行情况：{execution URL} 我的唯一 ID：" 后面跟着你注册此课程时通过电子邮件发送给你的唯一 ID。

  ¥Text: "The workflow {workflow name} failed, with the error message: {execution error message}. Last node executed: {name of the last executed node}. Check this workflow execution here: {execution URL} My Unique ID: " followed by the unique ID emailed to you when you registered for this course.

  请注意，你需要将大括号 {} 中的文本替换为从“错误触发”节点获取相应信息的表达式。
  

  ¥Note that you need to replace the text in curly brackets {} with expressions that take the respective information from the Error Trigger node.
  

4. 执行 Discord 节点。

¥Execute the Discord node.

5. 将新建的工作流设置为上一课中创建的主工作流的错误工作流。

¥Set the newly created workflow as the Error Workflow for the main workflow you created in the previous lesson.

工作流应如下所示：

¥The workflow should look like this:

Workflow 3 for monitoring workflow errors

Quiz questions

• 错误触发节点返回哪些字段？

¥What fields does the Error Trigger node return?

• 错误触发节点返回哪些关于执行的信息？

¥What information about the execution does the Error Trigger node return?

• 错误触发节点返回哪些关于工作流的信息？

¥What information about the workflow does the Error Trigger node return?

• 引用工作流名称的表达式是什么？

¥What's the expression to reference the workflow name?