Postman - How can I pass array as variable

Question

Is there the possibility to use an array variable inside postman?

e.g. inside the body of a request:

{
    "myData" : {{arrayVariable}}
}

and inside the data file:

{
    "arrayVariable": ["1", "2", "3"]
}

Answer 1

It's possible, you can even add your own keys

Answer 2

You can create a JSON body like this:

{
    "myData" : [
        {{arrayVariable}}
    ]
}

And the variable like this:

arrayVariable: "1", "2", "3"

where arrayVariable is the key and "1", "2", "3" is the value.