How to keep postman variable after previous request?

Question

JavaScript

The situation is the following. I send a Post request to get a number. It comes to me in the format
{
"contractId": "ac9ad97d-1f1c-70fd-1e33-1ff36dba5d44"
}
How can I store the contractId value in a variable?

Answer 1

const fn = async () => {
  let твояПеременная = await fetch(...)
}

Answer 2

Postman has scripts. Store the value in ENV and retrieve it in another query.