Express.js + TypeScript Hello World Server

A simple Hello World web server built with Express.js and TypeScript, executed using tsx.

Getting Started

Prerequisites

• Node.js (v16 or higher)
• npm

Installation

Dependencies are already installed. If you need to reinstall:

npm install

Running the Server

Development Mode (with auto-reload)

npm run dev

Production Mode

npm start

Build and Run (compiled)

npm run build:start

API Endpoints

• GET / - Hello World message
• GET /health - Health check endpoint

Example Response

{
  "message": "Hello World!",
  "timestamp": "2025-10-16T12:00:00.000Z",
  "server": "Express.js with TypeScript"
}

The server runs on http://localhost:3000 by default.