OAuth Integration in Svelte

From the SvelteKit cheat sheet ยท Authentication ยท verified Jul 2026

OAuth Integration

Third-party authentication providers

javascript
// GitHub OAuth example
export async function GET({ url, cookies }) {
  const code = url.searchParams.get('code');
  
  // Exchange code for token
  const { access_token } = await getGitHubToken(code);
  
  // Get user info
  const user = await getGitHubUser(access_token);
  
  // Create session
  cookies.set('session', sessionId, options);
  
  throw redirect(303, '/');
}
๐Ÿ”‘ OAuth with GitHub, Google, etc.
โœ‰๏ธ Magic link authentication
๐Ÿ›ก๏ธ CSRF protection with state parameter
๐Ÿ”„ Account linking for existing users

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