Applying middleware to routes in NestJS - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to apply middleware to all routes in a NestJS module.

NestJS

import { MiddlewareConsumer, Module, NestModule } from '@nestjs/common';
import { LoggerMiddleware } from './logger.middleware';

@Module({})
export class AppModule implements NestModule {
  configure(consumer: MiddlewareConsumer) {
    consumer.apply(LoggerMiddleware).[1]('*');
  }
}

Drag options to blanks, or click blank then click option'

Aattach

Buse

CapplyToRoutes

DforRoutes

Attempts:

3 left

💡 Hint

Common Mistakes

Using 'use' instead of 'forRoutes' causes a syntax error.

Trying to call 'applyToRoutes' which does not exist.

In NestJS, to apply middleware to routes, you use the 'forRoutes' method on the MiddlewareConsumer.

2fill in blank

medium

Complete the code to apply middleware only to the 'users' route.

NestJS

consumer.apply(LoggerMiddleware).forRoutes({ path: '[1]', method: RequestMethod.ALL });

Drag options to blanks, or click blank then click option'

Ausers

Bproducts

Corders

Dauth

Attempts:

3 left

💡 Hint

Common Mistakes

Using a wrong route path string causes middleware not to apply.

Forgetting to import RequestMethod when specifying method.

To apply middleware to a specific route, specify the route path string in the 'forRoutes' method.

3fill in blank

hard

Fix the error in the code to apply middleware to multiple routes.

NestJS

consumer.apply(LoggerMiddleware).forRoutes({ path: 'users', method: RequestMethod.GET }, [1]);

Drag options to blanks, or click blank then click option'

A'orders'

B['orders', 'products']

C{ path: 'orders', method: RequestMethod.POST }

DRequestMethod.POST

Attempts:

3 left

💡 Hint

Common Mistakes

Passing an array of strings instead of route objects causes errors.

Passing only method without path is invalid.

To apply middleware to multiple routes, pass multiple route objects to 'forRoutes'.

4fill in blank

hard

Fill both blanks to apply middleware only to POST and PUT methods on 'products' route.

NestJS

consumer.apply(LoggerMiddleware).forRoutes({ path: 'products', method: [1] }, { path: 'products', method: [2] });

Drag options to blanks, or click blank then click option'

ARequestMethod.POST

BRequestMethod.GET

CRequestMethod.PUT

DRequestMethod.DELETE

Attempts:

3 left

💡 Hint

Common Mistakes

Using GET or DELETE instead of POST or PUT.

Passing strings instead of RequestMethod enum values.

To target POST and PUT methods, use RequestMethod.POST and RequestMethod.PUT respectively.

5fill in blank

hard

Fill all three blanks to apply middleware to 'auth' route for GET, POST, and DELETE methods.

NestJS

consumer.apply(AuthMiddleware).forRoutes(
  { path: 'auth', method: [1] },
  { path: 'auth', method: [2] },
  { path: 'auth', method: [3] }
);

Drag options to blanks, or click blank then click option'

ARequestMethod.GET

BRequestMethod.POST

CRequestMethod.DELETE

DRequestMethod.PUT

Attempts:

3 left

💡 Hint

Common Mistakes

Using PUT instead of DELETE.

Passing strings instead of RequestMethod enum values.

Middleware can be applied to multiple HTTP methods by passing route objects with different methods.