DeveloperBreeze

Fetch Api Development Tutorials, Guides & Insights

Unlock 9+ expert-curated fetch api tutorials, real-world code snippets, and modern dev strategies. From fundamentals to advanced topics, boost your fetch api skills on DeveloperBreeze.

JavaScript in Modern Web Development

Tutorial December 10, 2024
javascript

JavaScript isn't limited to the browser anymore. It's being used in diverse domains:

  • Tools like React Native enable building native apps using JavaScript.
  • Example: Facebook's mobile app.

AJAX with JavaScript: A Practical Guide

Tutorial September 18, 2024
javascript

The Fetch API is a modern alternative to XMLHttpRequest. It's easier to use, more flexible, and based on Promises, making it simpler to handle asynchronous requests.

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>AJAX with Fetch API</title>
</head>
<body>
    <button id="fetchDataBtn">Fetch Data</button>
    <div id="dataOutput"></div>

    <script>
        document.getElementById('fetchDataBtn').addEventListener('click', function() {
            fetch('https://jsonplaceholder.typicode.com/posts/1')
                .then(response => {
                    if (!response.ok) {
                        throw new Error('Network response was not ok');
                    }
                    return response.json();
                })
                .then(data => {
                    document.getElementById('dataOutput').innerHTML = `
                        <h3>${data.title}</h3>
                        <p>${data.body}</p>
                    `;
                })
                .catch(error => console.error('There was a problem with the fetch operation:', error));
        });
    </script>
</body>
</html>

React Custom Hook for API Requests

Code August 12, 2024
javascript

import { useState, useEffect } from 'react';

function useFetch(url, options = {}) {
    const [data, setData] = useState(null);
    const [loading, setLoading] = useState(true);
    const [error, setError] = useState(null);

    useEffect(() => {
        let isMounted = true; // Track if component is mounted

        const fetchData = async () => {
            setLoading(true);
            try {
                const response = await fetch(url, options);
                if (!response.ok) {
                    throw new Error('Network response was not ok');
                }
                const result = await response.json();
                if (isMounted) {
                    setData(result);
                }
            } catch (error) {
                if (isMounted) {
                    setError(error);
                }
            } finally {
                if (isMounted) {
                    setLoading(false);
                }
            }
        };

        fetchData();

        return () => {
            isMounted = false; // Cleanup to avoid setting state on unmounted component
        };
    }, [url, options]);

    return { data, loading, error };
}

export default useFetch;

Here’s an example of how to use the useFetch hook in a React component to fetch and display data.

JavaScript Code Snippet: Fetch and Display Data from an API

Code August 04, 2024
javascript json

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Fetch API Example</title>
</head>
<body>
    <h1>User Information</h1>
    <ul id="user-list"></ul>

    <script>
        async function fetchUserData() {
            try {
                const response = await fetch('https://jsonplaceholder.typicode.com/users');
                if (!response.ok) {
                    throw new Error('Network response was not ok');
                }
                const users = await response.json();
                displayUsers(users);
            } catch (error) {
                console.error('Fetch error:', error);
            }
        }

        function displayUsers(users) {
            const userList = document.getElementById('user-list');
            users.forEach(user => {
                const listItem = document.createElement('li');
                listItem.textContent = `${user.name} - ${user.email}`;
                userList.appendChild(listItem);
            });
        }

        fetchUserData();
    </script>
</body>
</html>

Fetch JSON Data from API in JavaScript

Code January 26, 2024
javascript

// Fetch JSON data from an API using the Fetch API
fetch('https://jsonplaceholder.typicode.com/posts/1')
    .then(response => response.json())
    .then(data => console.log(data))
    .catch(error => console.error(error));