Blog Posts by Andrew B. Collier / @datawookie


What is Traefik?

Traffic in a LEGO landscape.

I’ve come across Traefik in a number of questions on Stack Overflow recently. I regularly use NGINX as a reverse proxy and sometimes find it to be a little obscure. Having an alternative would be helpful.

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Testing CSS & Xpath

A colourful image of people working in an impressionist style.

There are many tools for generating CSS selectors and XPath expressions. However, short of using them in your code, how can you quick test them? In this post I’ll show how you can use your browser’s Developer Tools to establish that your CSS or XPath is doing what you intend.

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Parsing the DOM

A mobster in Art Deco style.

The parse() function from the html-react-parser package converts HTML strings into React elements. It allows you to take HTML and render it as if it were JSX. This can be particularly useful when you’re working with content that comes as HTML from external sources (such as a CMS) and you want to include that content in your React components. It can also be used to filter and modify the React elements.

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Dynamic User Pages

Month of Gatsby
People socialising in an art deco style.
Suppose you want to redirect paths beginning with @ to a specific user page. For example, the @datawookie path would take you to the user page for handle datawookie. There are probably a few ways to do this, but one approach would be to use dynamic routing. 🚀 TL;DR Show me the code. Look at the 27-dynamic-users branch. This site is deployed here. First let’s set up the user page at src/pages/user. Read More →

Python Security Audit

A Romain centurion guarding a cage of snakes.

Is my code secure? This is something that we should all be thinking (if not worrying) about. A thorough security audit would be the ideal, but what if you don’t have the skills or resources for that? Well, there are some tools that will at least get you part way there.

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Gatsby, Tailwind & Docker

A whale in art deco style.

Gatsby and Tailwind are a formidable combination for putting together a robust and attractive site. Throw Docker into the mix and you also have robust and reliable deployments. Here’s how to set that up for a minimal site.

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.NET and MySQL in Docker

In the interests of full disclosure, I know very little (very little indeed!) about .NET. But I do enjoy figuring things out. In this post I’ve documented what I learned when trying to connect a simple .NET application to MySQL using Docker Compose. We’re going to try to do this using Docker as far as possible, which will allow me to avoid having to set up .NET on my local machine. Read More →

WordPress Headless CMS

Month of Gatsby
An art deco style image of a garden party with an imposing house in the background.

Not everbody is comfortable crafting web pages directly in JavaScript, HTML or even Markdown. Often content writers are more productive in an environment like WordPress. What if you want to develop your site using Gatsby but allow content writers to still carft their content in WordPress? No problem! You can use WordPress simply as a Content Management System (CMS), then pull the content through into your Gatsby site.

In this post we’ll look at how to set up a Headless WordPress CMS as a source of content for Gatsby.

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Minecraft Paper Server

A Minecraft character wearing glasses. The landscape and clothing of the character are patterned with newspaper.

The original Java Edition of the Minecraft Server that we installed previously inmplements all of the basic server functionality required for multiplayer Minecraft. But perhaps this is not enough. What if you want to customise the server by installing plugins? In that case you need to install a more sophisticated server forked off the original. The PaperMC Minecraft Server provides a lot of bells and whistles not present in the original.

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Weekly Digest & Annual Review

A large library with vaulted ceiling.

A quick review of the year.

  • I published 55 posts (including this one).
  • I spent a lot of time working with GatsbyJS for one of my clients. At first I was quite out of my depth, but I slowly figured out more or less how it works. I documented some of my learning in a series of posts.
  • My most popular post is still about Shared Memory & Docker. The runner up looks at how to Install GitLab Runner with Docker.
  • I spent some time compiling data on kayak specifications in the hope of producing a definitive table. It’s a work in progress but it’s already getting quite a lot of interest.

Now onto a few interesting articles from this week, mostly announcements of new versions.

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