How to convert JSON property array to Array of strings Object in node.js?

Question

I currently have the following JSON:

{
  "Id": ["1", "2"],
  "Settings": [{ "Key": "IgnitionOn", "Value": "true" }]
}

I want to be able to access Id and convert it to an Array of strings in node.js. Namely, what I want to do is access Id using req.body.Id . This works when Id is just a string. If I try to access req.body.Id currently, I get it to be undefined. I have also tried JSON.parse(req.body.Id) and JSON.stringify(req.body.Id) but in both approaches, the Ids are still undefined. Given my req body above, any suggestions on how I can create an instance of an array that is precisely the Id array in the body?

Any help will be much appreciated!

Answer 1

You can parse this JSON to get an object:

const result = JSON.pasrse(req.body)
const id = result.id;

Answer 2

If you body is in JSON, you will need to parse then entire body with JSON.parse(req.body) before accessing the .Id field

let req = {
    body: `{
        "Id": ["1","2"],
        "Settings": [{"Key": "IgnitionOn", "Value": "true"}]
        }`
}
let body = JSON.parse(req.body)
let ids = body.Id
console.log(ids)
// [ '1', '2' ]