Server-Side Sign in with Apple

Nov 15 2022 · Swift 5.6, macOS 12, iOS 15, Xcode 13.3

Part 2: Add Sign in with Apple to a Website

08. Handle the Sign in with Apple Callback

Episode complete

Play next episode

About this episode
Leave a rating/review
See forum comments
Cinema mode Mark complete Download course materials
Previous episode: 07. Add the Sign in with Apple Button to a Website Next episode: 09. Authenticate Sign in with Apple Users on the Web

Get immediate access to this and 4,000+ other videos and books.

Take your career further with a Kodeco Personal Plan. With unlimited access to over 40+ books and 4,000+ professional videos in a single subscription, it's simply the best investment you can make in your development career.

Learn more Already a subscriber? Sign in.

Heads up... You’re accessing parts of this content for free, with some sections shown as obfuscated text.

Heads up... You’re accessing parts of this content for free, with some sections shown as obfuscated text.

Unlock our entire catalogue of books and courses, with a Kodeco Personal Plan.

Unlock now

When a user signs in with Apple on the web, they authenticate with Apple servers.

func appleAuthCallbackHandler(_ req: Request) async throws -> View {

let siwaData = try req.content.decode(AppleAuthorizationResponse.self)
guard let sessionState = req.cookies["SIWA_STATE"]?.string, !sessionState.isEmpty, sessionState == siwaData.state else {
    req.logger.warning("SIWA does not exist or does not match")
    throw Abort(.unauthorized)
struct SIWAHandleContext: Encodable {
  let token: String
  let email: String?
  let firstName: String?
  let lastName: String?
let context = SIWAHandleContext(token: siwaData.idToken, email: siwaData.user?.email, firstName: siwaData.user?.name?.firstName, lastName: siwaData.user?.name?.lastName)
return try await req.view.render("siwaHandler", context)"login", "siwa", "callback", use: appleAuthCallbackHandler)
<!doctype html>
<html lang="en" class="h-100">
    <!-- Required meta tags -->
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>Sign in With Apple | Southdown Marketplace</title>
  <body class="d-flex flex-column h-100">

  function handleCallback() {
    const form = document.getElementById("siwaRedirectForm") = 'none';
  window.onload = handleCallback;
<form action="/login/siwa/handle" method="POST" id="siwaRedirectForm">
<input type="hidden" name="token" value="#(token)">
<input type="hidden" name="email" value="#(email)">
<input type="hidden" name="firstName" value="#(firstName)">
<input type="hidden" name="lastName" value="#(lastName)">
<input type="submit" value="If nothing happens click here">