How-to use Vault to pass token into Postman variable

I need some help on passing a token or password into a Postman variable so we can that token/password during a GET/POST API call. The goal is to store the user account information (user name and password) in Vault and then consume the JSON and pass a token into a variable that the call can use during the call. Each Postman call will connect to Vault to get the account information to access the resources.

Thank you