How to Retrieve Pagination Parameters for Categories in Next.js 13

Learn how to effectively get pagination parameters for category pages in your Next.js 13 application to enhance your blogging experience.
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This video is based on the question https://stackoverflow.com/q/77074617/ asked by the user 'Ioan' ( https://stackoverflow.com/u/22407044/ ) and on the answer https://stackoverflow.com/a/77074911/ provided by the user 'Robin Thomas' ( https://stackoverflow.com/u/1924653/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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How to Retrieve Pagination Parameters for Categories in Next.js 13

Introduction

If you're building a blog using Next.js, pagination is a crucial feature for navigating through multiple pages of content. You might already have implemented pagination for your homepage, where you retrieve page numbers through query parameters like url/?page=2. Now, you're looking to extend this functionality to category pages as well.

The challenge you're facing is that while you can successfully extract the category name from the URL parameters, you're struggling to retrieve pagination parameters such as pagina and numar. This guide will guide you through a straightforward solution to obtain these pagination parameters using the Next.js app router.

Understanding the Problem

You've successfully been able to extract the category name within your category pages. However, when trying to access pagination parameters, you only see the returned value of the category. To effectively manage pagination for your category pages, it’s important to handle both parameters appropriately.

Issues You Encountered:

Pagination parameters are not being recognized.

Unable to retrieve pagina and numar from URL.

Solution Overview

Next.js 13 introduced an improved structure in managing routing and query parameters, which enhances your ability to handle complex data fetching scenarios. To effectively solve your issue, you'll need to modify your component to extract both the category and pagination parameters.

Step-by-Step Solution

Modify Your Page Component:
In your page component for categories, you need to update the parameters that you accept. Specifically, include searchParams alongside params. Here’s how it should look:

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

Understanding the Parameters:

params: This is where you retrieve the category name provided in the URL.

searchParams: This is used to access any query parameters in the URL, which includes your pagination parameters.

Use Helper Functions:
Utilize helper functions like getNumericParam to safely retrieve numeric values for pagination. This ensures that your application can fall back to default values if no parameters are supplied.

Conclusion

With the above adjustments, your Next.js application should seamlessly retrieve pagination parameters for category pages, enhancing user navigation on your blog. This addition will allow your users to navigate between different pages within a category, providing a better browsing experience.

If you encounter similar challenges, reviewing the structure of your parameter handling is essential for effective debugging. Next.js offers robust capabilities to manage parameters, and understanding these will greatly benefit your development process.
By following these guidelines, you can improve the functionality of your blog while delivering a smooth user experience.

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