JavaScript Data Fetching Course (How To)

About this Course

Learn how modern web applications communicate with servers, fetch data, and update pages dynamically. This course covers the fundamentals of HTTP and APIs, introduces asynchronous programming with promises, and guides you through modern techniques using Fetch and async/await, all through a hands-on Dog Image Viewer project. By the end, you’ll be confident working with APIs and building interactive, real-world front-end features.

What you'll learn

APIs
Asynchronous JavaScript
JavaScript Promises
Async/Await
Fetch API

Syllabus

Foundations of Asynchronous JavaScript

Discover what happens behind the scenes when your browser talks to a server. You’ll learn the basics of HTTP, requests and responses, APIs, and how AJAX and XMLHttpRequest allow web pages to fetch data dynamically. This stage sets the foundation for understanding modern asynchronous programming in JavaScript.

Chevron 6 steps

What Is an API?

2:10
Understanding HTTP

5:16
Review APIs and HTTP

5 questions
HTTP in the Browser

2:35
AJAX & XHR Basics

3:30
Review AJAX

5 questions

Modern Asynchronous JavaScript

Take your skills further with modern JavaScript techniques like promises, the Fetch API, and async/await. You’ll build interactive features, fetch and display real data from APIs, and learn best practices for writing clean, maintainable asynchronous code.

Chevron 11 steps