ログアウトを実装する #12

src/lib/auth.ts

@@ -10,6 +10,12 @@ export class Auth {
 		new CookiesManager(cookies).setSessionId(auth_token.token, session_lifetime_sec)
 	}
 
+	public static async logout(cookies: Cookies): Promise<void> {
+		const cookiesManager = new CookiesManager(cookies)
+		await db.authToken.delete({ where: { token: cookiesManager.session_id } })
+		cookiesManager.deleteSessionId()
+	}
+
 	public static async getSessionLifetimeSec(): Promise<number> {
 		return await Database.getAppSettingInt('session_lifetime_sec')
 	}

src/routes/dashboard/+page.svelte

@@ -5,3 +5,4 @@
 <h1>Mission</h1>
 <p><a href="./register_task">ミッションを登録する</a></p>
 <p><a href="./task_list">ミッションを見る</a></p>
+<p><a href="./logout">ログアウト</a></p>

src/routes/logout/+page.server.ts

@@ -0,0 +1,14 @@
+import { Auth } from '$lib/auth'
+import { redirect, type Actions } from '@sveltejs/kit'
+import type { PageServerLoad } from './$types'
+
+export const load: PageServerLoad = async () => {
+	throw redirect(302, '/')
+}
+
+export const actions: Actions = {
+	default: async ({ cookies }) => {
+		await Auth.logout(cookies)
+		throw redirect(302, '/')
+	},
+}