Express.js Fundamentals

Master Express.js basics, server setup, middleware configuration, and core request/response handling patterns.

When to Use This Skill

• Setting up new Express servers with TypeScript
• Configuring middleware pipeline (helmet, cors, compression, body parsing)
• Understanding Express request/response lifecycle
• Creating basic routes and route handlers
• Configuring error handling middleware
• Setting up development vs production configurations
• Integrating logging and monitoring middleware

Quick Start: Basic Express Setup

import express, { Request, Response, NextFunction } from 'express';
import helmet from 'helmet';