Managing Async States Using the useAsync Hook

Introduction to useAsync hook

In the internal implementation of the useAsync custom hook, the React useState, useRef, useMemo and useEffect hooks are utilized. The useAsync hook is a custom React hook that simplifies handling asynchronous operations in functional components. It typically helps manage the state of asynchronous operations, such as fetching data from an API, handling promises, or any other asynchronous task.

One hook everyone wants to get hands-on experience with is useAsync, which is used to fetch an async resource, as we introduced in The useEffect Hook Examples lesson. Let's see the image below:

As simple as it sounds, everyone comes with different requirements and implementations for their projects. Here are a few features that we would like to have:

• Support a loading indicator.

• Can execute on demand.

• Support error handling.

• Can cancel the async call.

• Can cache async data.

The feature list can go on and on. In this course, we will provide a basic version that supports the first two items.

Implementing the useAsync custom hook

At any point, the call should be aware of the loading state, and when the resource is resolved, the data should be available to ...