Archives for 2022/04 (Blog)

Webmentions are the way people have conversations on the Indieweb, but integrating them - or, indeed, any kind of dynamic content - into a static site can be a little tricky. Luckily, many people have run into this issue before and so there wasn't much for me to do but steal.

To be clear, I'm talking about receiving and displaying webmentions here, not sending them. How I ended up sending them will be a separate topic, as it is tied into how I manage POSSE and backfeeding on my site.

The previous, pelican-based incarnation of my blog used a homegrown system involving a webmention listener that handed off data to a redis server and ultimately resulted in a new webmention being committed to my site's repo, causing the whole thing to be rebuilt. It certainly worked, but it required a fair bit of maintenance. It also failed to take into account certain edge cases that I hadn't previously considered (like a commentator's avatar image going missing).

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I'm a pretty big fan of TypeScript, probably best described as a statically typed language that transpiles to standard JavaScript. I've written about it before.

People who have worked with me in the past may be surprised at my admiration, given the rancour I occasionally direct at something like the Google Web Toolkit (GWT), a Java-to-JavaScript transpiler, which to the casual eye seems to be in a similar vein.

The similarities, however, are superficial; TypeScript and GWT are quite different beasts. Something like GWT is used in web development in order to avoid writing JavaScript. TypeScript, on the other hand, is best viewed as JavaScript extended with an optional static typing system. The optional part is key; in theory, any JavaScript program is also a valid TypeScript program. In other words, TypeScript doesn't try to hide the fact that it's merely an enhanced version of JavaScript.

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As a participant in the IndieWeb, I publish my share of likes, replies, reposts, and bookmarks. These posts all have one thing in common - they refer to another, external URL and only make sense in the context of that URL.

This being the case, it's nice to give my readers (and myself) some sense of what I'm referring to when I post that content. The process of scraping metadata from URLs for display purposes is called "URL unfurling" and implementing it efficiently on an Eleventy based website is not entirely trivial, especially when you're trying to save your Netlify build minutes, so it's worth sharing what I've learned.

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