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, '/');
}๐ OAuth with GitHub, Google, etc.
โ๏ธ Magic link authentication
๐ก๏ธ CSRF protection with state parameter
๐ Account linking for existing users