Calling Environment Variables in Change Node for Global Variable name

[KAMERONSWENSON]

Hello Everyone,

I am building a flow that contains a large amount of subflows. Within these subflows you find one node named ArrayDefect"X". X being an identifier. I have to set these array for each individual machine that I add to this flow. We have around 80+ machines at our plant.

QUESTION: Is there a way to use an environment variable or pass a variable on to the end of these nodes that I can specify per subflow as a 1, 2, 3, 4, etc. ? That way when I just copy and paste all I have to do is add an environment variable of the number I want and just reference that number? I know its possible to set a environment variable in the value field but is it possible in the naming field?

Thank you!

[E1cid]

Not sure of sturcture of ArrayDefect, but if it is an object or array, you can do.

Otherwise you would have to use a function node.

let envr = env.get("evr_name") ?? "0";
msg["ArrayDefect" + envr] = msg.payload;
return msg;

[TotallyInformation]

You cannot replace part of an input value with an env variable - from the docs:

This only works if it replaces the entire property - it cannot be used to substitute just part of the value. For example, it is not possible to use CLIENT-${HOST} .

Use a function node instead.

[KAMERONSWENSON]

Could you send me a flow id of you getting this to work. I keep getting undefined when calling the global variable.

[KAMERONSWENSON]

nvm I was able to get this to work. Thank you!