Apple ID Sign In: AppleAuth

AppleAuth.java

private void appleAuth(String authorizationCodeSentByApp, String keyIdentifierSentByApp) throws Exception {

  var token = generateJWT();

  // Http Requests Client
  var tokenResponse = httpClient.getTokenResponse("CLIENT_ID", token, "authorization_code", authorizationCodeSentByApp);

  var idToken = tokenResponse.getIdToken();
  
  // We had until here
        
  var claims = getClaims(keyIdentifierSentByApp, idToken);

  var iss = claims.get("iss", String.class);
  var aud = claims.get("aud", String.class);
  var exp = claims.get("exp", Date.class);
  var iat = claims.get("iat", Date.class);
  var appleIdentifier = claims.get("sub", String.class);
  var atHash = claims.get("at_hash", String.class);
  var authTime = claims.get("auth_time", Long.class);
  var email = claims.get("email", String.class);
  var emailVerified = claims.get("email_verified", String.class);
  
  // Do with params what you need to do
}