initial commit

src/auth/guards/jwt-auth.guard.ts

@@ -0,0 +1,21 @@
+import { ExecutionContext, Injectable, UnauthorizedException } from '@nestjs/common';
+import { AuthGuard } from '@nestjs/passport';
+import { JWT_ACCESS_STRATEGY } from '../constants/auth.constants';
+
+/**
+ * Protects routes with Passport JWT access strategy.
+ */
+@Injectable()
+export class JwtAuthGuard extends AuthGuard(JWT_ACCESS_STRATEGY) {
+  override handleRequest<TUser>(
+    err: Error | null,
+    user: TUser | false,
+    _info: unknown,
+    _context: ExecutionContext,
+  ): TUser {
+    if (err || !user) {
+      throw err ?? new UnauthorizedException('Unauthorized');
+    }
+    return user;
+  }
+}