How to fetch user information from aws SSO - node.js

Question

I am trying to fetch the users using my VPN setup. So in the AWS SSO / AWS IAM Identity Center, I have a group called __ with 2 users. Both users have attribute information such as email, phone number, first name.. etc.
As I try to fetch the information, on lambda I use the below code.
const AWS = require("aws-sdk");
async function getUserInformation(){
const identityStore = new AWS.IdentityStore({
accessKeyId: process.env.accessKeyId,
secretAccessKey: process.env.secretAccessKey,
region: process.env.region,
});
let params = {
IdentityStoreId: process.env.identityStoreId
};
const userIdPromise = () => {
return new Promise((resolve, reject) => {
identityStore.listUsers(params, (err, data) => {
if (err) {
return reject(err);
}
return resolve(data.Users);
});
});
};
const userInfoPromise = (Users) => {
const usersInfo = [];
return new Promise((resolve, reject) => {
Users.map(({ UserId }) => {
let params = {
IdentityStoreId: process.env.identityStoreId,
UserId: UserId,
};
identityStore.describeUser(params, function (err, data) {
if (err) {
return reject(err);
}
usersInfo.push(data);
if (usersInfo.length == Users.length) {
return resolve(usersInfo);
}
});
});
});
};
const Users = await userIdPromise();
const usersInfo= await userInfoPromise(Users);
return usersInfo;
}
exports.handler = async (event) => {
try {
const users = await getUserInformation();
return users;
} catch (err) {
return err;
}
};
The output i get from this is the following response, but I was expecting a response as in the documentation .
Response
[
{
"UserName": "jakob-2",
"UserId": "a34498c2-4011-70bd-1a24-*"
},
{
"UserName": "JakobCI",
"UserId": "2334c812-6051-70cd-a983-*"
}
]
i hope you can help as i have now tried for 3 days to get the correct responce information