Validate Auth0 id_token

validate.ts

import jwt from "jsonwebtoken";
import jwksClient from "jwks-rsa";

const idToken = "<idtoken>";

const decoded = jwt.decode(idToken, { complete: true }) as any;
const { kid } = decoded.header;
const { iss } = decoded.payload;

const response = await fetch(
  `${iss}/.well-known/openid-configuration`
);
const { jwks_uri } = await response.json();

var client = jwksClient({
  jwksUri: jwks_uri,
  requestHeaders: {
    "user-agent": "example-agent/0.0.1 (https://example.com)",
  },
});

const key = await client.getSigningKey(kid);
const signingKey = key.getPublicKey();

const verified = jwt.verify(idToken, signingKey);

console.log(verified);