Help array: need to put an array in an array

[AxelD]

Hey guys!

I need some help. In the first payload there is an array of data and I want to write a function that puts that array one step further.

Now it is msg.payload[ ] ==> I want it to be msg.payload.metadata[ ]

Can you help me?

Thanks!

[Steve-Mcl]

use a function node...

var arr = msg.payload; //store a ref to the array in "arr" temporarily 
msg.payload = {}; //make msg.payload an (empty) object
msg.payload.metadata = arr; //store "arr" in msg.payload.metadata
return msg; //return the msg to next node

↑ deliberately verbose for readability ↑

You can also do this with a change node & probably other ways too.

[AxelD]

Thank you, it worked!