I have an exec node running some code. I connect to the return code output. (The bottom one) This is the message coming out: {"topic":"DO_THIS","qos":2,"retain":false,"_msgid":"755998b4.052328","payload":{"code":0}} I open the payload part and copy the value. I'm guessing it is 0. But when I…

I can reproduce. It only happens if i copy the value from the debug window or click copy value. If another source is used (vscode/sublime), it does not happen. There might be an special hidden character. (i couldn't find it).

Ah, windows. Not much good for Ubuntu. Ok, I have word around it by changing the == to contains. That works.

[image] Trying_to_learn: show ? You said you tried it in a Switch node but it didn't work, but you haven't showed us what you tried in the switch node. Then you went on to talk about a function node problem.

Originally the node was like this: [{"id":"7f0765ad.dfa1f4","type":"switch","z":"5b95490e.a46ab8","name":"Ok/Error","property":"payload.code","propertyType":"msg","rules":[{"t":"eq","v":"0","vt":"num"},{"t":"eq","v":"127","vt":"num"}],"checkall":"true","repair":false,"outputs":2,"x":1610,"y":690,"w…

== is working for me. besides if you put contains not only 0 will pass but 10 , 2022 etc whatever contains zero and that may not be what you want. you sure you are setting msg.payload.code in the switch node ? and not simply msg.payload ? [image]

Yes, I am sure that is the message structure. Alas it is an artefact of my early MQTT stuff. It is the output of an exec node. It only really puts out 0 for good, and 127 for errors. That is all I want to get from the output.

I think you're on to something. The fact Andrew states he solved it by using contains instead of == suggest he was comparing to string 0 not number 0 [image] Trying_to_learn: Ok, I have word around it by changing the == to contains . Not that it should matter but payload.code is definitely …

I was suspicious that it was a text, which also lead me to paste it in a function node. When it was pasted in the node, it was orange so I take it that it is a number.

[image] Trying_to_learn: When it was pasted in the node, it was orange so I take it that it is a number. More like... [image]

Ok. I was talking about the 0 to the left of this is just some text. But yes: correct.

Is this from o/p 3 of a switch node? Is the exec node feeding direct into the switch node or is there anything at all in between? Can you show us the config of the exec node? I want to try and replicate the problem. I don't even know what "contains" means if the type is number.

Having trouble parsing this message

General

Steve-Mcl 29 August 2020 08:21 14

I think you're on to something.

The fact Andrew states he solved it by using contains instead of == suggest he was comparing to string 0 not number 0

Not that it should matter but payload.code is definitely a number so your example would be the correct solution.

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Having trouble parsing this message

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