是否可以在 Node-RED 上使用 node.error() 函数捕获对象？

Question

假设我有以下流程：

名为 error that we can catch but catch node doesn't see objects 的函数节点具有代码：

const object = {
   "key1": "value1", 
   "key2": "value2"
}
node.error(object, msg)

如果我运行它的错误将被 catch node 捕获如下：

尽管它捕获了错误，但在使用 node.error(object, msg) 时它只接受字符串而不接受对象。如果不使用 catch 节点它会工作正常......但是当我使用它时我总是会在 catch 节点中收到 [Object Object]...

节点error that we cannot catch有代码：

const object = {
   "key1": "value1", 
   "key2": "value2"
}
msg.error = object

node.error(msg)

另一方面，此节点将消息打印到调试 window，但它的消息从未被 catch node.

捕获

我想使用 catch node 捕获我在流程中作为错误发送的对象。有可能吗？或者catch node不支持捕捉对象？

样本：

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Answer 1

node.error() 的第一个参数应该是字符串，而不是对象。这是因为它明确意味着是人类可读的消息。

只需执行您在第二个实例中所做的操作，但包含一条包含错误的短信：

const object = {
   "key1": "value1", 
   "key2": "value2"
}
msg.error = object

node.error("Some error message",msg)

是否可以在 Node-RED 上使用 node.error() 函数捕获对象？

Is it possible to catch an object with the node.error() function on Node-RED?

node-red