Next.js [JavaScript]

Next.js is a framework for server-render or statically-exported React apps. In this article, I would like to introduce basic knowledge for Next.js.

🎃 Install

cd /project/path/to/

# Install next and some libraries
yarn add next react react-dom

🎂 Server Side Support for Clean URLs

Please add Express.js:

yarn add express

Then create a file server.js in your app and add following content:

const express = require("express");
const next = require("next");

const dev = process.env.NODE_ENV !== "production";
const app = next({ dev });
const handle = app.getRequestHandler();

.then(() => {
const server = express();

// Support clean URLs
server.get("/p/:id", (req, res) => {
const actualPage = "/post";
const queryParams = { id: };
app.render(req, res, actualPage, queryParams);

server.get("*", (req, res) => {
return handle(req, res);

server.listen(3000, err => {
if (err) throw err;
console.log("> Ready on");
.catch(ex => {

In addtion, please add pages/post.js and write following code:

export default props => <h1>post page id: {} in next.jsh1>;

After modifying, please update package.json:

"scripts": {
"dev": "node server.js"

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