Announcing three new open-source projects

I've had a really productive couple of weeks and (mostly) weekends recently. I've worked extensively on one of my side projects using modern JS stack including Webpack, faced issues here and there, and found a way to solve them. In the end, I proudly announce three new open-source packages: a modern AJAX library for Nette Framework, Neon loader for Webpack, and a library integrating the Webpack build process into Nette-powered applications.

First of all, some context: in a part of my free time, I am a singer-songwriter. I've had this website,, for about two years. The main thing I use it for is uploading my songs there so that people can listen to them. But the user experience was suboptimal: songs were on separate pages which you had to navigate to and then play the <audio> thing there. When the song finished, you hit the Back button, chose another one, and repeated the process. It seemed somewhat annoying.

In recent months, I've been working on the website in my free time, and there it is, anew! My primary focus was to improve the UX of listening to songs, but I couldn't miss the opportunity, so I completely redesigned the website, and also vastly cleaned and upgraded the whole codebase. In short, it now feels more like it's 2017.

If I should pinpoint one thing, it would be the audio player, obviously. It's a micro-application written in React using Howler.js that handles the audio playback. Although it's not a standalone package, the whole website's source code is open so you can take a look at the code.

A modern AJAX library for Nette Framework

Hand in hand with the player goes AJAX navigation through the site. With any browser navigation, the seamless playlist player wouldn't really make sense, so I needed a solid AJAX library. I evaluated the available options: nette.ajax.js depends on jQuery which is unnecessary, and Nittro seems too opinionated. I've had a hard time trying to customize some aspect of it half a year ago, and it seemed that its learning curve hadn't got any more pleasant since then for someone used to the plug-and-play nature of ES6 modules.

So I decided to write my own library with two goals in mind: first, to use modern vanilla JS APIs while maintaining compatibility with IE 10 and above, and second, to make it as easy to use but also extend as is nette.ajax.js. The result is called Naja. It integrates nicely with the modern JavaScript ecosystem, is thoroughly tested and easily extensible. Feel free to give it a go:

$ npm install naja
import naja from 'naja';
document.addEventListener('DOMContentLoaded', naja.initialize.bind(naja));

Webpack integration

Both on the aforementioned site and on one of my work projects, I have used Webpack to bundle the application assets. This resulted in two more packages. First is the neon-loader that allows you to load Neon files easily into the Webpack-built application so that you can e.g. share some configuration between Nette and JS:

import config from 'neon-loader!./common.config.neon';

Second is WebpackNetteAdapter that provides a solution to the problems you face when having a React application inside a standard Nette application, like what the hell should I write into the <script> tag if I sometimes use webpack-dev-server (and sometimes not) and if file names contain cache-busting hashes. The adapter takes care of all this and exposes a handy little Latte macro for you:

<script src="{webpack asset.js}"></script>

You can read more on the configuration of the adapter in its README on Github.


The neon-loader is stable at 1.0.0 since it's really simple when it comes to code. Naja and WebpackNetteAdapter are, at the time of writing, in alpha and RC stages, respectively, as I'd like to get some user feedback and catch the bugs I've missed before releasing stable versions.

Naja and neon-loader are released under the MIT license and WebpackNetteAdapter under the New BSD license. All three of them are already used in production, so feel free to try them, submit issues and contribute via pull requests :)

Have you found a tpyo in the post? Please submit a pull request with a fix :)

Hello, I am Jiří Pudil

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I am a full-stack web developer from Brno, Czech Republic. I contribute to open-source projects, write a technical blog, and speak at meetups and conferences.

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