Next.js API Call Example: A Comprehensive Guide

Table of contents
  1. Setting Up Your Next.js Project
  2. Making an API Call in Next.js
  3. FAQs
  4. Conclusion

Next.js is a powerful and popular framework for building React applications. One of its key features is the ability to make API calls easily, allowing you to fetch data from external sources and integrate it into your application. In this comprehensive guide, we'll walk through an example of making API calls in a Next.js application. Whether you're a beginner or an experienced developer, you'll find everything you need to know about Next.js API calls in this article.

Setting Up Your Next.js Project

Before we dive into making API calls, let's ensure that you have a Next.js project set up. If you haven't already created a Next.js application, you can do so by running the following commands in your terminal:

npx create-next-app next-api-example
cd next-api-example

Once your Next.js project is set up, you're ready to start making API calls.

Making an API Call in Next.js

To make an API call in Next.js, you can use the built-in fetch function or any HTTP client library of your choice, such as Axios or the native JavaScript XMLHttpRequest.

Let's consider an example where we want to fetch data from a mock API endpoint. In your Next.js application, you can create a new file, such as api.js, and write the following code:

export default async function handler(req, res) {
try {
const response = await fetch('');
const data = await response.json();
} catch (error) {
res.status(500).json({ error: 'Failed to fetch data' });

In this example, we define an asynchronous function called handler that takes req (request) and res (response) parameters. Inside the function, we use the fetch function to make a GET request to the API endpoint and retrieve the data. We then handle the response and any potential errors accordingly.

Integrating the API Call into a Component

Once you've defined the API call in your Next.js project, you can integrate it into a component to fetch and display the data. For example, you might create a component called DataComponent and include the following code:

import React, { useState, useEffect } from 'react';

const DataComponent = () => {
const [data, setData] = useState(null);

useEffect(() => {
const fetchData = async () => {
try {
const response = await fetch('/api/data');
const result = await response.json();
} catch (error) {
console.error('Failed to fetch data');
}, []);

return (

{data ? (

    { => (

  • {}
  • ))}

) : (

Loading data...



export default DataComponent;

In this example, we use the useState and useEffect hooks to manage the component's state and perform the API call when the component mounts. We fetch the data from the API endpoint and update the component's state accordingly, rendering the data once it's available.


1. Can I make API calls to external APIs in Next.js?

Yes, Next.js allows you to make API calls to external endpoints, enabling you to fetch data from third-party APIs and integrate it into your application.

2. What are the benefits of using Next.js for API calls?

Next.js provides built-in support for server-side rendering and API routes, making it seamless to fetch and serve data from APIs. Additionally, it offers excellent performance and scalability for handling API requests.

3. Is it necessary to use a specific HTTP client for making API calls in Next.js?

No, Next.js gives you the flexibility to use any HTTP client library of your choice, whether it's the native fetch function, Axios, or other popular options.


In conclusion, making API calls in a Next.js application is a straightforward process that leverages the framework's capabilities for fetching and integrating external data. By following the example and guidelines provided in this guide, you can seamlessly incorporate API calls into your Next.js projects and enhance the functionality and user experience of your applications.

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