How to Create an Interval API Call in Next.js

Описание: Learn how to make interval API calls in Next.js without refreshing the page, improving user experience in your applications.
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How to Create an Interval API Call in Next.js

In the world of web development, responsiveness is key. One common scenario arises when your application needs to wait for a change in status from a server without forcing the user to refresh the page. This guide will show you how to create an interval API call in Next.js that allows you to monitor changes in real-time, improving your user's experience. Let's dive in!

The Problem

Imagine you have a web application where a user places an order and is waiting for a merchant to accept it. You want to notify the user and redirect them when the order status changes. Traditionally, data fetching in Next.js using getServerSideProps only retrieves data once when the page loads. This means if the order status changes, the page needs to be refreshed to see the new data, which isn't ideal for user experience. How can you fetch that status dynamically?

The Solution

To achieve the desired behavior—updating order information in real-time—you can leverage the useEffect hook along with a periodic API call. Here's how to implement it step by step:

Step 1: Update the useEffect Dependencies

First, you need to modify the useEffect to respond to changes in the order.status. By doing this, the effect will re-run whenever the status of the order changes.

Here’s the updated code:

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Step 2: Manage Order State

Next, instead of using the order prop directly, cache its value in a local state using useState. This allows you to manage updates locally in the component.

Here’s how to initiate the local state:

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Step 3: Interval API Call Implementation

You'll need another useEffect to periodically check the status of the order. This internal function will call the API at specific intervals using setTimeout.

Here’s how the complete implementation looks:

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Bringing It All Together

Here is the full component with the above changes integrated:

[[See Video to Reveal this Text or Code Snippet]]

Conclusion

By following these steps, you've successfully created an interval API call in Next.js that allows your application to monitor the status of an order without requiring page refreshes. This not only enhances user experience but also ensures that your application remains responsive and dynamic. Feel free to reach out if you have any questions or need further clarification!