Aral Balkan

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Site.js, now also on Windows 10

Photo of ThinkPad 440p. On screen: (left half) PowerShell session under Windows Terminal showing the installation of Site.js, the creation of the basic static site as explained in this post, and running Site.js. (right half) https://localhost in Microsoft Edge browser showing the words “Hello, world!”

Last week, I bought a refurbished 7-year-old ThinkPad 440p1 so I could test Site.js under Windows.

Long story short, Windows is still shit2. Plus, it’s now also a cesspit of surveillance3. And, over the weekend, I ended up adding native Windows 10 support4 to Site.js5.

So if you’re on Windows 10 – out of necessity or preference – follow along for a quick look at how you can create your own static and dynamic web site using Site.js in a minute or two.

1. Install Site.js (~15 seconds)

Screenshot of the installation instructions on the Site.js web site

Skim the source code for the installer and, when you’re happy it’s not doing anything nefarious, copy and paste the following command6 into a PowerShell session running under Windows Terminal:

iex(iwr -UseBasicParsing

2. Create and test your first static site (~ 30 seconds)

Screenshot of the static site displaying its “Hello, world!” message in a web browser

Enter the following three commands into your terminal:

# Create a demo folder to work in and switch to it.
mkdir demo; cd demo

# Create a static index route.
Set-Content index.html 'Hello, world!'

# Start serving your site with Site.js.

Visit your new static site at https://localhost.

When you’re ready to move on, press Ctrl+C to stop Site.js.

3. Create and test your first dynamic site (~1 minute)

Screenshot of the dynamic route displaying the current date and time in a web browser

We’re going to use DotJS to create a dynamic route. In Site.js, dynamic routes are placed in a folder called .dynamic in your site’s root.

# Create the .dynamic folder.
mkdir .dynamic

# Create a dynamic route that displays the current time/date.
Set-Content ./.dynamic/date.js 'module.exports = (_, res)=>{res.end(`<pre>${new Date().toString()}</pre>`)}'

# Start Site.js.

Visit your new dynamic route at https://localhost/date.

Refresh to see that the date changes.

In the example above, I wrote the route in a rather obfuscated manner for brevity. Here is the same route, re-written for clarity and better compatibility:

module.exports = (request, response) => {
  const now = new Date().toString()

There’s no magic…

DotJS simply maps regular .js files (see what I did there) to Express routes. All you have to do is write the logic for your routes. Site.js takes care of all the plumbing.

Using DotJS, you can specify HTTPS GET and POST routes as well as secure WebSocket routes.

If you need full flexibility in your routing, you can do anything you can with Express and Express-WS using advanced routing.

I hope you enjoy using Site.js on Windows 10 and remember that you can use everything you’ve just learned on Linux and macOS too. In fact, there are a couple of things you can do on those platforms that you cannot on Windows 10.

Windows 10 Limitations

On macOS and Linux, you can sync your local site to your remote server. This is not possible on Windows 10 as there isn’t a free and open rsync implementation that we can use.

Also, on Linux distributions with systemd (e.g., Ubuntu 18.04 LTS), you can run production servers. In fact, that’s how this post is being served to you right now.

This blog, Laura’s site, and the Small Technology Foundation web site are all powered by Site.js.

Next steps

To learn more about Site.js, read through the Site.js web site (and try out the interactive demo in the header), read the Site.js documentation, and feel free to hit me up on my Mastodon if you have any questions.

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  1. It was the cheapest way I could test under Windows, given that a license of Windows 10 Pro costs basically what I paid for it. And, I have to say, it runs like a champ. ↩︎

  2. Part of “having been around” is having started out on DOS at age 7 and stubbornly spent twenty odd years on DOS/Windows before overcoming my Stockholm syndrome. ↩︎

  3. But that’s a story for a different post. And yes, I have the screenshots. ↩︎

  4. Note that Windows Subsystem for Linux (WSL) is not supported. Site.js uses mkcert to seamlessly provision development-time TLS certificates. The way mkcert does this is to unceremoniously create a certificate authority on your local machine. The problem is that under WSL, the certificate authority gets created under Linux, not Windows. And then you go and run your browser of choice under Windows and, oops, you get a certificate error. This is not a trivial issue to fix. If the mkcert folks add support for WSL in the future, Site.js should also benefit. Until then, Site.js won’t be supporting WSL. ↩︎

  5. Now, you might be asking yourself: “Aral, if you hate Windows so much, why did you spend time supporting it?” And my answer to that is when you’re building a bridge to a better place, you can’t have both its abutments on the shore you want to get to. You have to plant one of them on the shore you want to get away from.

    Case in point: I wouldn’t have been able to switch to Mac in 2006 if it hadn’t been for cross-platform free and open source tools making the transition easier and Parallels enabling me to run Windows alongside OS X until I was ready to cut the cord entirely.

    This is also why I talk about Tincan being a bridge from the centralised web to the peer web.

    It’s no use building islands of utopia if the only people who can reach them are master swimmers. Our biggest challenge is building bridges. And that sometimes means spending time in places we would rather not. ↩︎

  6. On Linux and macOS, you can install Site.js with a single-line installation command that you copy from the web site. I wanted the Windows version to be as easy.

    This does mean the installer does a couple of “clever” things out of necessity like re-downloading itself and then launching the saved script in an elevated process to carry out the installation with administrator privileges. As far as the experience is concerned, it should be seamless. Please do let me know if it isn’t for you. ↩︎