# Building a Single-Page Application with Next.js, NextUI, React Router, and TypeScript In this blog post, we'll explore how to create a single-page application (SPA) using a powerful combination of Next.js, NextUI, React Router, and TypeScript. This setup allows you to leverage the strengths of each technology to build a modern, type-safe, and visually appealing web application. ## Introduction ### Why Next.js? Next.js is a popular React framework that provides features like server-side rendering and static site generation. However, it can also be configured to work as a single-page application, making it a versatile choice for various use cases. ### Why NextUI? NextUI is a UI library that offers a set of beautiful and customizable components, making it easy to create visually appealing interfaces. ### Why React Router? React Router is a widely-used library for client-side routing in React applications. It allows you to manage navigation and rendering of components based on the URL. ### Why TypeScript? TypeScript adds type safety to your JavaScript code, helping you catch errors early and improve code quality. ## Setting Up the Project To get started, create a new Next.js project with TypeScript support and install the necessary packages: ```bash npx create-next-app@latest my-nextjs-spa --typescript cd my-nextjs-spa npm install @nextui-org/react react-router-dom @types/react-router-dom ``` ## Configuring React Router Next.js has its own routing system, but for an SPA, we'll use React Router to handle client-side navigation. Wrap your application with the `BrowserRouter` in a custom `_app.tsx` file: ```tsx // pages/_app.tsx import { AppProps } from 'next/app'; import { NextUIProvider } from '@nextui-org/react'; import { BrowserRouter as Router } from 'react-router-dom'; function MyApp({ Component, pageProps }: AppProps) { return ( ); } export default MyApp; ``` ## Defining Routes Create a `routes.tsx` file to define your application's routes using React Router: ```tsx // routes.tsx import React from 'react'; import { Route, Routes } from 'react-router-dom'; import Home from './pages/home'; import About from './pages/about'; const AppRoutes: React.FC = () => { return ( } /> } /> ); }; export default AppRoutes; ``` ## Creating Example Pages Create `home.tsx` and `about.tsx` in the `pages` directory to serve as example pages: ```tsx // pages/home.tsx import React from 'react'; const Home: React.FC = () => { return

Home Page

; }; export default Home; ``` ```tsx // pages/about.tsx import React from 'react'; const About: React.FC = () => { return

About Page

; }; export default About; ``` ## Integrating NextUI Components Enhance your pages with NextUI components for a polished look: ```tsx // pages/home.tsx import React from 'react'; import { Button } from '@nextui-org/react'; const Home: React.FC = () => { return (

Home Page

); }; export default Home; ``` ## Running the Application Start the development server and test your SPA: ```bash npm run dev ``` Open your browser and navigate to `http://localhost

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