Next.js and Bootstrap: A Step-by-Step Integration Guide

Integrating Bootstrap with Next.js: A Comprehensive Guide

Are you struggling to incorporate Bootstrap into your Next.js application? Look no further. This article will walk you through the process of integrating Bootstrap with Next.js, highlighting common pitfalls and providing solutions.

Why Use Bootstrap with Next.js?

Bootstrap is a popular front-end framework that provides a comprehensive set of pre-built UI components and utility classes. When paired with Next.js, a powerful React-based framework for building server-side rendered (SSR) applications, Bootstrap can help you build fast, responsive, and visually appealing web applications.

Common Issues with Bootstrap and Next.js

One of the most common issues when using Bootstrap with Next.js is the “document is not defined” error. This error occurs because Bootstrap’s JavaScript components rely on the browser’s document object, which is not available during server-side rendering.

Solving the “Document is Not Defined” Error

To solve this error, you can use React’s useEffect hook to import Bootstrap’s JavaScript components only on the client-side. Here’s an example:

“`jsx
import { useEffect } from ‘react’;

useEffect(() => {
import(‘bootstrap/dist/js/bootstrap.bundle.min’);
}, []);
“`

Using Bootstrap with Next.js

There are several ways to integrate Bootstrap with Next.js. Here are a few approaches:

1. Install Bootstrap as a dependency: Run npm install bootstrap or yarn add bootstrap to install Bootstrap as a dependency in your project.
2. Import Bootstrap CSS: Import Bootstrap’s CSS file in your pages/_app.js file using import 'bootstrap/dist/css/bootstrap.min.css';.
3. Create a custom Bootstrap component: Create a custom React component that wraps Bootstrap’s JavaScript components, and import it in your pages.

Example Code

Here’s an example of how to create a simple modal component using Bootstrap and Next.js:

“`jsx
import { useState } from ‘react’;
import { Modal } from ‘bootstrap’;

const MyModal = () => {
const [showModal, setShowModal] = useState(false);

const handleToggleModal = () => {
setShowModal(!showModal);
};

return (

);
};
“`

Integrating Bootstrap with Next.js Using App Router

If you’re using Next.js 13 or later, you can integrate Bootstrap with the App Router. Here’s an example of how to do it:

“`jsx
import { Layout } from ‘next/app’;
import ‘bootstrap/dist/css/bootstrap.min.css’;

const MyApp = ({ Component, pageProps }) => {
return (



);
};

export default MyApp;
“`

Customizing Bootstrap with SCSS Variables

You can customize Bootstrap’s styles using SCSS variables. Here’s an example of how to do it:

“`scss
// custom.scss
$primary: #333;
$secondary: #666;

@import ‘bootstrap/scss/bootstrap.scss’;
“`

Then, import the custom SCSS file in your pages/_app.js file:

jsx
import 'custom.scss';


That’s it! With these examples, you should be able to integrate Bootstrap with your Next.js application successfully.