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Learn how to implement infinite scrolling in your tables using `htmx` without server-side state management.
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This video is based on the question https://stackoverflow.com/q/78112455/ asked by the user 'farhany' ( https://stackoverflow.com/u/90506/ ) and on the answer https://stackoverflow.com/a/78199058/ provided by the user 'Alexander Burov' ( https://stackoverflow.com/u/984106/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Loading an Infinite Table Dynamically with htmx

Have you ever wanted to create a seamless browsing experience in your web application with infinite scrolling? This can significantly enhance user interaction by loading more content dynamically as users scroll down. However, many developers face a challenge when trying to implement infinite scrolling in a table format, especially when it involves pagination. In this guide, we'll discuss how you can efficiently load an infinite table using the htmx library without the complexity of maintaining server-side state.

The Challenge

Imagine you have a table that loads data from a server using an infinite scroll pattern. You set up an initial call to fetch data, like:

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

At the end of the table, the last row automatically fetches the next page’s data, for example, with another call to:

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

The issue arises when you desire to increment the page number dynamically without keeping track of the state on the server side. You want this functionality to enhance performance without resorting to cookies or complex data structures. The question is whether this can be achieved effectively with htmx.

Solution Overview

The good news is, you can implement this functionality without storing state on the server! Let’s break down the solution into clear, manageable steps.

Step 1: Basic Setup

Ensure your table is set up correctly with an initial hx-get request that pulls the first page of data. Your initial call might look like this:

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

Step 2: Fetching Additional Pages

To dynamically increment the page number and fetch additional rows as the user scrolls, you’ll need to modify your last row. Instead of having a static page number, you can use a simple JavaScript function to modify the URL parameters for the next request.

Capture scroll events.

Update the page number in your request dynamically.

Here’s an example of how to achieve this using htmx:

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

Step 3: Avoiding Server State Management

Since each scroll event triggers the next page fetch by simply incrementing the currentPage variable in your JavaScript, you do not need any session management or complex state storage on the server side. The server simply needs to handle the incoming requests based on the URL parameters provided.

Conclusion

With these straightforward adjustments, you can implement dynamic infinite scrolling in your tables using htmx, allowing users to experience a fluid, uninterrupted interaction with your data. This method minimizes server complexity while providing the desired functionality — making your application smoother and more enjoyable for users.

Don't hesitate to try setting this up in your application, and watch your pagination woes disappear! Your users will surely appreciate the improved browsing experience.