Automatically Run Authorization Step for OneLogin API Requests

ol_auth.js

var region = pm.variables.get("region");
var id = pm.variables.get("client_id");
var secret = pm.variables.get("client_secret");
var basicToken = btoa(`${id}:${secret}`);

const echoPostRequest = {
  url: `https://api.${region}.onelogin.com/auth/oauth2/v2/token`,
  method: 'POST',
  header: {
    "Content-Type": "application/json",
    "Authorization":`Basic ${basicToken}`
  },
  body: {
    mode: 'application/json',
    raw: JSON.stringify({"grant_type":"client_credentials"})
  }
};

pm.sendRequest(echoPostRequest, (err, response) => {
  const jsonResponse = response.json();
  const newAccessToken = jsonResponse.access_token;
  pm.variables.set('access_token', newAccessToken);
});