Code in the user file has been revised to improve readability

src/user/auth.middleware.ts

@@ -8,14 +8,14 @@ import { UserService } from './user.service';
 
 @Injectable()
 export class AuthMiddleware implements NestMiddleware {
-  constructor(private readonly userService: UserService) {}
+  constructor(private readonly userService: UserService) { }
 
   async use(req: Request, res: Response, next: NextFunction) {
-    const authHeaders = req.headers.authorization;
-    if (authHeaders && (authHeaders as string).split(' ')[1]) {
-      const token = (authHeaders as string).split(' ')[1];
-      const decoded: any = jwt.verify(token, SECRET);
-      const user = await this.userService.findById(decoded.id);
+    const authHeaders: string = req.headers.authorization;
+    if (authHeaders?.split(' ')[1]) {
+      const token = authHeaders.split(' ')[1];
+      const { id: any } = jwt.verify(token, SECRET);
+      const user = await this.userService.findById(id);
 
       if (!user) {
         throw new HttpException('User not found.', HttpStatus.UNAUTHORIZED);

src/user/user.controller.ts

@@ -49,7 +49,6 @@ export class UserController {
 
     const token = await this.userService.generateJWT(_user);
     const {email, username, bio, image} = _user;
-    const user = {email, token, username, bio, image};
-    return {user}
+    return {email, token, username, bio, image};
   }
 }

src/user/user.decorator.ts

@@ -10,8 +10,8 @@ export const User = createParamDecorator((data: any, ctx: ExecutionContext) => {
   }
 
   // in case a route is not protected, we still want to get the optional auth user from jwt
-  const token = req.headers.authorization ? (req.headers.authorization as string).split(' ') : null;
-  if (token && token[1]) {
+  const token = (req.headers.authorization as string)?.split(' ') || null;
+  if (token?.[1]) {
     const decoded: any = jwt.verify(token[1], SECRET);
     return !!data ? decoded[data] : decoded.user;
   }