feat: creates backend for the project

backend/src/routes/auth.ts

@@ -0,0 +1,51 @@
+import { Router } from 'express';
+import { asyncHandler } from '../utils';
+import { requireAuth } from '../middleware/auth';
+import * as authService from '../services/auth';
+
+const router = Router();
+
+router.post(
+  '/login',
+  asyncHandler(async (req, res) => {
+    const { login, password } = req.body;
+    if (!login || !password) {
+      res.status(400).json({ error: 'BAD_REQUEST', message: 'login and password are required' });
+      return;
+    }
+
+    const result = await authService.login({ login, password });
+    if (!result) {
+      res.status(401).json({ error: 'UNAUTHORIZED', message: 'Invalid credentials' });
+      return;
+    }
+
+    res.cookie('sid', result.sessionId, {
+      httpOnly: true,
+      sameSite: 'lax',
+      path: '/',
+    });
+    res.json({ ok: true });
+  }),
+);
+
+router.post(
+  '/logout',
+  requireAuth,
+  asyncHandler(async (req, res) => {
+    await authService.logout(req.sessionId!);
+    res.clearCookie('sid');
+    res.json({ ok: true });
+  }),
+);
+
+router.get(
+  '/me',
+  requireAuth,
+  asyncHandler(async (req, res) => {
+    const result = await authService.me(req.sessionId!);
+    res.json(result);
+  }),
+);
+
+export default router;