Using getStaticProps in Next.js
1. Introduction
In Next.js, getStaticProps
is a data fetching method that enables static generation of pages at build time. This allows for optimal performance and SEO benefits, as the page is pre-rendered and served as static HTML.
Note:
getStaticProps
is used only for pages, not for non-page components.
2. Key Concepts
- Static Generation: The process of pre-rendering pages at build time.
- Data Fetching: Retrieving data from an API or database before rendering the page.
- Props: Data passed to a component, which can be fetched using
getStaticProps
.
3. How to Use getStaticProps
Follow these steps to implement getStaticProps
in your Next.js application:
- Define your page component.
- Export an asynchronous function named
getStaticProps
. - Fetch your data inside
getStaticProps
. - Return an object with the data as props.
Example Code
import React from 'react';
export async function getStaticProps() {
const res = await fetch('https://api.example.com/data');
const data = await res.json();
return {
props: {
data,
},
};
}
const MyPage = ({ data }) => {
return (
My Data
{JSON.stringify(data, null, 2)}
);
};
export default MyPage;
4. Best Practices
- Use
getStaticProps
for pages that can be generated at build time. - Combine with
getStaticPaths
for dynamic routes. - Handle errors gracefully in your data fetching.
5. FAQ
What is the difference between getStaticProps and getServerSideProps?
getStaticProps
runs at build time, while getServerSideProps
runs on each request. Use the former for static pages and the latter for dynamic content.
Can I use getStaticProps with client-side data fetching?
Yes, you can use getStaticProps
for initial data and fetch additional data on the client-side using hooks like useEffect
.