Next.JS Get and Post Requests Using the App Directory

Next.JS is a powerful and popular framework for building web applications with React. In this article, we will discuss how to make GET and POST requests using the app directory in Next.JS.

GET Requests

To make a GET request in Next.JS, you can use the fetch() method. First, import the fetch() method and then use it to make a GET request to an API endpoint. Here’s an example:

fetch('https://api.example.com/data')
  .then(response => response.json())
  .then(data => console.log(data));

POST Requests

For making a POST request in Next.JS, you can use the fetch() method as well. First, import the fetch() method and then use it to make a POST request to an API endpoint with the desired data. Here’s an example:

fetch('https://api.example.com/data', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({ name: 'John', age: 30 })
})
  .then(response => response.json())
  .then(data => console.log(data));

Using the App Directory

In Next.JS, the app directory is where you can define a custom App component. This component is used to initialize pages. You can use the getInitialProps() method in the custom App component to fetch data before the page is loaded. Here’s an example of how to use the app directory to make a GET request:

import React from 'react';
import fetch from 'isomorphic-unfetch';

class MyApp extends App {
  static async getInitialProps() {
    const res = await fetch('https://api.example.com/data');
    const data = await res.json();
    return { data };
  }

  render() {
    const { data } = this.props;
    return (
      <div>
        <p>Data: {data}</p>
      </div>
    );
  }
}

export default MyApp;

With the custom App component and the getInitialProps() method, you can fetch data before the page is loaded and then pass it as props to the page component.

Conclusion

In this article, we’ve discussed how to make GET and POST requests using the app directory in Next.JS. By using the fetch() method and utilizing the custom App component, you can easily fetch and manipulate data in your Next.JS applications.