send message error handling

[DarkPark]

Is there a way to handle errors in the Sender Node?
The catch node is not triggered and Sender Node is not producing any payload.
Please advise.

[windkh]

I guess this issue is a duplicate

[windkh]

I need to find a way to handle this... the output of the sender node contains the result. But there couldcalso be a timeout....

[DarkPark]

I'm not familiar with node-red internals but maybe it's possible to just throw an exception (and let catch node handle it) and skip payload?

[windkh]

I will try

[windkh]

fixed in version 8.9.9

[windkh]

A message containing the exception and the causing message object is printed using node.error.

[windkh]

I could add a second output which would be triggered in case of an exception. So the question is if you want to handle the error in the sender on your own or if you would like to abort the whole flow?
So please let me know your use case.

[DarkPark]

Thank you. Will test it.
I'm okay with any of these solutions as I have a separate subflow to send messages (it encapsulates all sending logic).
But in general (especially when there are many send nodes) it is probably better to throw an exception to one catch node.

[windkh]

Then I will implement an optional second output

[windkh]

Please check version 8.9.1

[DarkPark]

I'm testing with empty content and unfortunately neither second output nor catch node is triggered.

[windkh]

That is ok

[DarkPark]

But the message was not sent. It's not a normal situation and it would be nice to be able to react.

Besides I see that the second output has data even when there are no errors.

[windkh]

Right now empty content is ignored... no content = nothing to send. The 2nd output should not send anything. I will check that

[windkh]

Besides I see that the second output has data even when there are no errors.

@DarkPark I can not reproduce that. On my machine only one output is triggered. Can you please recheck?

[windkh]

But the message was not sent. It's not a normal situation and it would be nice to be able to react.

A warning is issued in this case. I don't dare to change that behavior to not break existing bots.

[DarkPark]

I'm very sorry but can't reproduce it either.
Thank you for your work :)