how to check the ID token in aws lambda in node js

// Cognito data
   
const userPoolId = "###########"; // Cognito user pool id here    
const pool_region = '#########'; // Region where your cognito user pool is created

const jwt = require('jsonwebtoken');
const jwkToPem = require('jwk-to-pem');
const request = require('request');


// Token verification function
const  ValidateToken = (token) => {
    console.log('Validating the token...')
    request({
        url: `https://cognito-idp.${pool_region}.amazonaws.com/${userPoolId}/.well-known/jwks.json`,
        json: true
    }, (error, response, body) => {
        console.log('validation token..')
        if (!error && response.statusCode === 200) {
            pems = {};
            var keys = body['keys'];
            for(var i = 0; i < keys.length; i++) {
                //Convert each key to PEM
                var key_id = keys[i].kid;
                var modulus = keys[i].n;
                var exponent = keys[i].e;
                var key_type = keys[i].kty;
                var jwk = { kty: key_type, n: modulus, e: exponent};
                var pem = jwkToPem(jwk);
                pems[key_id] = pem;
            }
            //validate the token
            var decodedJwt = jwt.decode(token, {complete: true});
            if (!decodedJwt) {
                console.log("Not a valid JWT token");
                return;
            }

            var kid = decodedJwt.header.kid;
            var pem = pems[kid];
            if (!pem) {
                console.log('Invalid token');
                return;
            }

            jwt.verify(token, pem, function(err, payload) {
                if(err) {
                    console.log("Invalid Token.");
                } else {
                    console.log("Valid Token.");
                    console.log(payload);
                }
            });
        } else {
            console.log(error)
            console.log("Error! Unable to download JWKs");
        }
    });
}

// Exporting it to call it anywere you want
exports.ValidateToken = ValidateToken