Key Features
Non-Blocking I/O
Handle thousands of concurrent connections with asynchronous event-driven architecture.
Fast Execution
Built on Chrome’s V8 engine for lightning-fast JavaScript performance.
npm Ecosystem
Access over 2 million packages via Node Package Manager (npm).
Cross-Platform
Run on Windows, macOS, Linux, and deploy to cloud or containers.
How It Works
Install Node.js
Download the installer from the official site or use a package manager like nvm.
Initialize Project
Run `npm init` to create a package.json file and configure your app.
Write Server Code
Use built-in modules like `http` or frameworks like Express to build APIs.
Install Packages
Use `npm install` to add libraries for routing, database, testing, and more.
Run & Deploy
Start your server with `node app.js` and deploy using Docker, cloud, or CI/CD.
Code Example
// Sample Node.js HTTP server
const http = require('http');
const server = http.createServer((req, res) => {
res.statusCode = 200;
res.setHeader('Content-Type', 'text/plain');
res.end('Hello from Node.js!');
});
server.listen(3000, () => {
console.log('Server running at http://localhost:3000/');
});Use Cases
API Development
Build RESTful or GraphQL APIs with Express, Fastify, or Koa.
Real-Time Apps
Create chat apps, games, or dashboards using WebSockets and Socket.io.
Microservices
Design modular services with lightweight Node.js containers.
CLI Tools
Build command-line utilities with Node.js and npm packages.
Integrations & Resources
Explore Node.js’s ecosystem and find the tools, platforms, and docs to accelerate your workflow.
Popular Integrations
- Express, Fastify, Koa
- MongoDB, PostgreSQL, Redis
- Docker, Kubernetes
- Git, GitHub, GitLab
- Jenkins, Travis CI, CircleCI
Helpful Resources
FAQ
Common questions about Node.js’s capabilities, usage, and ecosystem.