blank sveltekit project

src/app.d.ts

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+import type { User, Session } from 'better-auth/minimal';
+
+// See https://svelte.dev/docs/kit/types#app.d.ts
+// for information about these interfaces
+declare global {
+	namespace App {
+		interface Locals {
+			user?: User;
+			session?: Session;
+		}
+
+		// interface Error {}
+		// interface PageData {}
+		// interface PageState {}
+		// interface Platform {}
+	}
+}
+
+export {};

src/app.html

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+<!doctype html>
+<html lang="en">
+	<head>
+		<meta charset="utf-8" />
+		<meta name="viewport" content="width=device-width, initial-scale=1" />
+		%sveltekit.head%
+	</head>
+	<body data-sveltekit-preload-data="hover">
+		<div style="display: contents">%sveltekit.body%</div>
+	</body>
+</html>

src/demo.spec.ts

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+import { describe, it, expect } from 'vitest';
+
+describe('sum test', () => {
+	it('adds 1 + 2 to equal 3', () => {
+		expect(1 + 2).toBe(3);
+	});
+});

src/hooks.server.ts

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+import type { Handle } from '@sveltejs/kit';
+import { building } from '$app/environment';
+import { auth } from '$lib/server/auth';
+import { svelteKitHandler } from 'better-auth/svelte-kit';
+
+const handleBetterAuth: Handle = async ({ event, resolve }) => {
+	const session = await auth.api.getSession({ headers: event.request.headers });
+
+	if (session) {
+		event.locals.session = session.session;
+		event.locals.user = session.user;
+	}
+
+	return svelteKitHandler({ event, resolve, auth, building });
+};
+
+export const handle: Handle = handleBetterAuth;

src/lib/assets/favicon.svg

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+<svg xmlns="http://www.w3.org/2000/svg" width="107" height="128" viewBox="0 0 107 128"><title>svelte-logo</title><path d="M94.157 22.819c-10.4-14.885-30.94-19.297-45.792-9.835L22.282 29.608A29.92 29.92 0 0 0 8.764 49.65a31.5 31.5 0 0 0 3.108 20.231 30 30 0 0 0-4.477 11.183 31.9 31.9 0 0 0 5.448 24.116c10.402 14.887 30.942 19.297 45.791 9.835l26.083-16.624A29.92 29.92 0 0 0 98.235 78.35a31.53 31.53 0 0 0-3.105-20.232 30 30 0 0 0 4.474-11.182 31.88 31.88 0 0 0-5.447-24.116" style="fill:#ff3e00"/><path d="M45.817 106.582a20.72 20.72 0 0 1-22.237-8.243 19.17 19.17 0 0 1-3.277-14.503 18 18 0 0 1 .624-2.435l.49-1.498 1.337.981a33.6 33.6 0 0 0 10.203 5.098l.97.294-.09.968a5.85 5.85 0 0 0 1.052 3.878 6.24 6.24 0 0 0 6.695 2.485 5.8 5.8 0 0 0 1.603-.704L69.27 76.28a5.43 5.43 0 0 0 2.45-3.631 5.8 5.8 0 0 0-.987-4.371 6.24 6.24 0 0 0-6.698-2.487 5.7 5.7 0 0 0-1.6.704l-9.953 6.345a19 19 0 0 1-5.296 2.326 20.72 20.72 0 0 1-22.237-8.243 19.17 19.17 0 0 1-3.277-14.502 17.99 17.99 0 0 1 8.13-12.052l26.081-16.623a19 19 0 0 1 5.3-2.329 20.72 20.72 0 0 1 22.237 8.243 19.17 19.17 0 0 1 3.277 14.503 18 18 0 0 1-.624 2.435l-.49 1.498-1.337-.98a33.6 33.6 0 0 0-10.203-5.1l-.97-.294.09-.968a5.86 5.86 0 0 0-1.052-3.878 6.24 6.24 0 0 0-6.696-2.485 5.8 5.8 0 0 0-1.602.704L37.73 51.72a5.42 5.42 0 0 0-2.449 3.63 5.79 5.79 0 0 0 .986 4.372 6.24 6.24 0 0 0 6.698 2.486 5.8 5.8 0 0 0 1.602-.704l9.952-6.342a19 19 0 0 1 5.295-2.328 20.72 20.72 0 0 1 22.237 8.242 19.17 19.17 0 0 1 3.277 14.503 18 18 0 0 1-8.13 12.053l-26.081 16.622a19 19 0 0 1-5.3 2.328" style="fill:#fff"/></svg>

src/lib/index.ts

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+// place files you want to import through the `$lib` alias in this folder.

src/lib/server/auth.ts

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+import { betterAuth } from 'better-auth/minimal';
+import { drizzleAdapter } from 'better-auth/adapters/drizzle';
+import { sveltekitCookies } from 'better-auth/svelte-kit';
+import { env } from '$env/dynamic/private';
+import { getRequestEvent } from '$app/server';
+import { db } from '$lib/server/db';
+
+export const auth = betterAuth({
+	baseURL: env.ORIGIN,
+	secret: env.BETTER_AUTH_SECRET,
+	database: drizzleAdapter(db, { provider: 'pg' }),
+	emailAndPassword: { enabled: true },
+	socialProviders: {
+		github: {
+			clientId: env.GITHUB_CLIENT_ID,
+			clientSecret: env.GITHUB_CLIENT_SECRET
+		}
+	},
+	plugins: [sveltekitCookies(getRequestEvent)] // make sure this is the last plugin in the array
+});

src/lib/server/db/auth.schema.ts

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+import { relations } from "drizzle-orm";
+import { pgTable, text, timestamp, boolean, index } from "drizzle-orm/pg-core";
+
+export const user = pgTable("user", {
+  id: text("id").primaryKey(),
+  name: text("name").notNull(),
+  email: text("email").notNull().unique(),
+  emailVerified: boolean("email_verified").default(false).notNull(),
+  image: text("image"),
+  createdAt: timestamp("created_at").defaultNow().notNull(),
+  updatedAt: timestamp("updated_at")
+    .defaultNow()
+    .$onUpdate(() => /* @__PURE__ */ new Date())
+    .notNull(),
+});
+
+export const session = pgTable(
+  "session",
+  {
+    id: text("id").primaryKey(),
+    expiresAt: timestamp("expires_at").notNull(),
+    token: text("token").notNull().unique(),
+    createdAt: timestamp("created_at").defaultNow().notNull(),
+    updatedAt: timestamp("updated_at")
+      .$onUpdate(() => /* @__PURE__ */ new Date())
+      .notNull(),
+    ipAddress: text("ip_address"),
+    userAgent: text("user_agent"),
+    userId: text("user_id")
+      .notNull()
+      .references(() => user.id, { onDelete: "cascade" }),
+  },
+  (table) => [index("session_userId_idx").on(table.userId)],
+);
+
+export const account = pgTable(
+  "account",
+  {
+    id: text("id").primaryKey(),
+    accountId: text("account_id").notNull(),
+    providerId: text("provider_id").notNull(),
+    userId: text("user_id")
+      .notNull()
+      .references(() => user.id, { onDelete: "cascade" }),
+    accessToken: text("access_token"),
+    refreshToken: text("refresh_token"),
+    idToken: text("id_token"),
+    accessTokenExpiresAt: timestamp("access_token_expires_at"),
+    refreshTokenExpiresAt: timestamp("refresh_token_expires_at"),
+    scope: text("scope"),
+    password: text("password"),
+    createdAt: timestamp("created_at").defaultNow().notNull(),
+    updatedAt: timestamp("updated_at")
+      .$onUpdate(() => /* @__PURE__ */ new Date())
+      .notNull(),
+  },
+  (table) => [index("account_userId_idx").on(table.userId)],
+);
+
+export const verification = pgTable(
+  "verification",
+  {
+    id: text("id").primaryKey(),
+    identifier: text("identifier").notNull(),
+    value: text("value").notNull(),
+    expiresAt: timestamp("expires_at").notNull(),
+    createdAt: timestamp("created_at").defaultNow().notNull(),
+    updatedAt: timestamp("updated_at")
+      .defaultNow()
+      .$onUpdate(() => /* @__PURE__ */ new Date())
+      .notNull(),
+  },
+  (table) => [index("verification_identifier_idx").on(table.identifier)],
+);
+
+export const userRelations = relations(user, ({ many }) => ({
+  sessions: many(session),
+  accounts: many(account),
+}));
+
+export const sessionRelations = relations(session, ({ one }) => ({
+  user: one(user, {
+    fields: [session.userId],
+    references: [user.id],
+  }),
+}));
+
+export const accountRelations = relations(account, ({ one }) => ({
+  user: one(user, {
+    fields: [account.userId],
+    references: [user.id],
+  }),
+}));

src/lib/server/db/index.ts

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+import { drizzle } from 'drizzle-orm/postgres-js';
+import postgres from 'postgres';
+import * as schema from './schema';
+import { env } from '$env/dynamic/private';
+
+if (!env.DATABASE_URL) throw new Error('DATABASE_URL is not set');
+
+const client = postgres(env.DATABASE_URL);
+
+export const db = drizzle(client, { schema });

src/lib/server/db/schema.ts

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+import { pgTable, serial, integer, text } from 'drizzle-orm/pg-core';
+
+export const task = pgTable('task', {
+	id: serial('id').primaryKey(),
+	title: text('title').notNull(),
+	priority: integer('priority').notNull().default(1)
+});
+
+export * from './auth.schema';

src/routes/+layout.svelte

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+<script lang="ts">
+	import './layout.css';
+	import favicon from '$lib/assets/favicon.svg';
+
+	let { children } = $props();
+</script>
+
+<svelte:head><link rel="icon" href={favicon} /></svelte:head>
+{@render children()}

src/routes/+page.svelte

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+<h1>Welcome to SvelteKit</h1>
+<p>Visit <a href="https://svelte.dev/docs/kit">svelte.dev/docs/kit</a> to read the documentation</p>

src/routes/demo/+page.svelte

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+<script lang="ts">
+	import { resolve } from '$app/paths';
+</script>
+
+<a href={resolve('/demo/better-auth')}>better-auth</a>

src/routes/demo/better-auth/+page.server.ts

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+import { redirect } from '@sveltejs/kit';
+import type { Actions } from './$types';
+import type { PageServerLoad } from './$types';
+import { auth } from '$lib/server/auth';
+
+export const load: PageServerLoad = async (event) => {
+	if (!event.locals.user) {
+		return redirect(302, '/demo/better-auth/login');
+	}
+	return { user: event.locals.user };
+};
+
+export const actions: Actions = {
+	signOut: async (event) => {
+		await auth.api.signOut({
+			headers: event.request.headers
+		});
+		return redirect(302, '/demo/better-auth/login');
+	}
+};

src/routes/demo/better-auth/+page.svelte

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+<script lang="ts">
+	import { enhance } from '$app/forms';
+	import type { PageServerData } from './$types';
+
+	let { data }: { data: PageServerData } = $props();
+</script>
+
+<h1>Hi, {data.user.name}!</h1>
+<p>Your user ID is {data.user.id}.</p>
+<form method="post" action="?/signOut" use:enhance>
+	<button class="rounded-md bg-blue-600 px-4 py-2 text-white transition hover:bg-blue-700"
+		>Sign out</button
+	>
+</form>

src/routes/demo/better-auth/login/+page.server.ts

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+import { fail, redirect } from '@sveltejs/kit';
+import type { Actions } from './$types';
+import type { PageServerLoad } from './$types';
+import { auth } from '$lib/server/auth';
+import { APIError } from 'better-auth/api';
+
+export const load: PageServerLoad = async (event) => {
+	if (event.locals.user) {
+		return redirect(302, '/demo/better-auth');
+	}
+	return {};
+};
+
+export const actions: Actions = {
+	signInEmail: async (event) => {
+		const formData = await event.request.formData();
+		const email = formData.get('email')?.toString() ?? '';
+		const password = formData.get('password')?.toString() ?? '';
+
+		try {
+			await auth.api.signInEmail({
+				body: {
+					email,
+					password,
+					callbackURL: '/auth/verification-success'
+				}
+			});
+		} catch (error) {
+			if (error instanceof APIError) {
+				return fail(400, { message: error.message || 'Signin failed' });
+			}
+			return fail(500, { message: 'Unexpected error' });
+		}
+
+		return redirect(302, '/demo/better-auth');
+	},
+	signUpEmail: async (event) => {
+		const formData = await event.request.formData();
+		const email = formData.get('email')?.toString() ?? '';
+		const password = formData.get('password')?.toString() ?? '';
+		const name = formData.get('name')?.toString() ?? '';
+
+		try {
+			await auth.api.signUpEmail({
+				body: {
+					email,
+					password,
+					name,
+					callbackURL: '/auth/verification-success'
+				}
+			});
+		} catch (error) {
+			if (error instanceof APIError) {
+				return fail(400, { message: error.message || 'Registration failed' });
+			}
+			return fail(500, { message: 'Unexpected error' });
+		}
+
+		return redirect(302, '/demo/better-auth');
+	},
+	signInSocial: async (event) => {
+		const formData = await event.request.formData();
+		const provider = formData.get('provider')?.toString() ?? 'github';
+		const callbackURL = formData.get('callbackURL')?.toString() ?? '/demo/better-auth';
+
+		const result = await auth.api.signInSocial({
+			body: {
+				provider: provider as 'github',
+				callbackURL
+			}
+		});
+
+		if (result.url) {
+			return redirect(302, result.url);
+		}
+		return fail(400, { message: 'Social sign-in failed' });
+	}
+};

src/routes/demo/better-auth/login/+page.svelte

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+<script lang="ts">
+	import { enhance } from '$app/forms';
+	import type { ActionData } from './$types';
+
+	let { form }: { form: ActionData } = $props();
+</script>
+
+<h1>Login</h1>
+<form method="post" action="?/signInEmail" use:enhance>
+	<label>
+		Email
+		<input
+			type="email"
+			name="email"
+			class="mt-1 rounded-md border border-gray-300 bg-white px-3 py-2 shadow-sm focus:border-blue-500 focus:ring-2 focus:ring-blue-500 focus:outline-none"
+		/>
+	</label>
+	<label>
+		Password
+		<input
+			type="password"
+			name="password"
+			class="mt-1 rounded-md border border-gray-300 bg-white px-3 py-2 shadow-sm focus:border-blue-500 focus:ring-2 focus:ring-blue-500 focus:outline-none"
+		/>
+	</label>
+	<label>
+		Name (for registration)
+		<input
+			name="name"
+			class="mt-1 rounded-md border border-gray-300 bg-white px-3 py-2 shadow-sm focus:border-blue-500 focus:ring-2 focus:ring-blue-500 focus:outline-none"
+		/>
+	</label>
+	<button class="rounded-md bg-blue-600 px-4 py-2 text-white transition hover:bg-blue-700"
+		>Login</button
+	>
+	<button
+		formaction="?/signUpEmail"
+		class="rounded-md bg-blue-600 px-4 py-2 text-white transition hover:bg-blue-700"
+		>Register</button
+	>
+</form>
+<p class="text-red-500">{form?.message ?? ''}</p>
+
+<hr class="my-4" />
+<form method="post" action="?/signInSocial" use:enhance>
+	<input type="hidden" name="provider" value="github" />
+	<input type="hidden" name="callbackURL" value="/demo/better-auth" />
+	<button class="rounded-md bg-blue-600 px-4 py-2 text-white transition hover:bg-blue-700"
+		>Sign in with GitHub</button
+	>
+</form>

src/routes/layout.css

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+@import 'tailwindcss';
+@plugin '@tailwindcss/typography';

src/routes/page.svelte.spec.ts

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+import { page } from 'vitest/browser';
+import { describe, expect, it } from 'vitest';
+import { render } from 'vitest-browser-svelte';
+import Page from './+page.svelte';
+
+describe('/+page.svelte', () => {
+	it('should render h1', async () => {
+		render(Page);
+
+		const heading = page.getByRole('heading', { level: 1 });
+		await expect.element(heading).toBeInTheDocument();
+	});
+});