Middleware Example - Nestjs Typing CST Test

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Middleware Example — Nestjs Code

Shows how to use middleware to log requests in NestJS.

import { Injectable, NestMiddleware, Module } from '@nestjs/common';
import { NestFactory } from '@nestjs/core';
import { Request, Response, NextFunction } from 'express';

@Injectable()
class LoggerMiddleware implements NestMiddleware {
	use(req: Request, res: Response, next: NextFunction) {
		console.log(`${req.method} ${req.url}`);
		next();
	}
}

@Module({})
class AppModule {
	configure(consumer) {
		consumer.apply(LoggerMiddleware).forRoutes('*');
	}
}

async function bootstrap() {
	const app = await NestFactory.create(AppModule);
	await app.listen(3000);
}
bootstrap();

Nestjs Language Guide

NestJS is a progressive Node.js framework for building efficient, scalable, and maintainable server-side applications using TypeScript and modern JavaScript.

Primary Use Cases

▸Building RESTful APIs and GraphQL services
▸Creating microservices with built-in support
▸Developing server-side applications with TypeScript
▸Implementing real-time WebSocket applications
▸Building enterprise-grade backend systems

Notable Features

▸TypeScript-first design
▸Modular architecture
▸Dependency Injection container
▸Support for REST, GraphQL, WebSockets, and microservices
▸Built-in testing and CLI tools

Origin & Creator

NestJS was created by Kamil Myśliwiec in 2017 to provide a structured framework for building maintainable Node.js server-side applications with TypeScript.

Industrial Note

NestJS is popular in enterprise backend ecosystems and microservice architectures, providing scalable, modular, and maintainable server-side solutions.

More Nestjs Typing Exercises

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Middleware Example — Nestjs Code

Shows how to use middleware to log requests in NestJS.

import { Injectable, NestMiddleware, Module } from '@nestjs/common'; import { NestFactory } from '@nestjs/core'; import { Request, Response, NextFunction } from 'express'; @Injectable() class LoggerMiddleware implements NestMiddleware { use(req: Request, res: Response, next: NextFunction) { console.log(`${req.method} ${req.url}`); next(); } } @Module({}) class AppModule { configure(consumer) { consumer.apply(LoggerMiddleware).forRoutes('*'); } } async function bootstrap() { const app = await NestFactory.create(AppModule); await app.listen(3000); } bootstrap();

Nestjs Language Guide

NestJS is a progressive Node.js framework for building efficient, scalable, and maintainable server-side applications using TypeScript and modern JavaScript.

Primary Use Cases

▸Building RESTful APIs and GraphQL services
▸Creating microservices with built-in support
▸Developing server-side applications with TypeScript
▸Implementing real-time WebSocket applications
▸Building enterprise-grade backend systems

Notable Features

▸TypeScript-first design
▸Modular architecture
▸Dependency Injection container
▸Support for REST, GraphQL, WebSockets, and microservices
▸Built-in testing and CLI tools

Origin & Creator

NestJS was created by Kamil Myśliwiec in 2017 to provide a structured framework for building maintainable Node.js server-side applications with TypeScript.

Industrial Note

NestJS is popular in enterprise backend ecosystems and microservice architectures, providing scalable, modular, and maintainable server-side solutions.