Next.js is a robust framework that allows developers to quickly build server-side rendered React applications.

It has various essential features.

Data fetching is an essential feature that allows developers to retrieve and display data on a website/web program.

Person analyzing data on a laptop

There are a few different ways to fetch data in Next.js, each with its advantages and use cases.

This article will explore different ways to fetch data in Next.js.

you’re able to use the useEffect hook to fetch data in Next.js.

For example:

This code block uses the useEffect hook to fetch data from an API.

If passes two parameters to the useEffect hook: a function to fetch the data and a dependency array.

On success, it usessetData()to update the components state with the data the fetch request returns.

The dependency array you pass to the useEffect hook should contain the value the effect depends on.

The component will re-trigger the effect only when the value in the dependency array changes.

If the dependency array is emptyas in this examplethe effect will only run on the first render.

You mustset up the SWR libraryfirst, to use it in your Next system.

One of the SWR library’s key features is its ability to automate data revalidation.

This feature is essential when data updates frequently and you need it to be consistently up-to-date.

When a user leaves a page, the data displayed on the screen becomes stale.

To stop the SWR library from performing this action, it’s possible for you to use therevalidateOnFocusoption.

The SWR library also revalidates data whenever a user reconnects to the internet.

This action can be very helpful in certain situations and works automatically.

The library is an excellent alternative to the nativefetchAPI.

It is simple to use, which makes it perfect for developers new to making fetch requests.

The isomorphic-unfetch library is minimalistic and suitable for working on small applications.

Efficient Data Fetching With Next.js

Data fetching is an important feature when developing applications.

Next.js provides several ways to fetch data, each of which has its advantages and trade-offs.