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Gatsby Sparks Joy

healeycodes profile image Andrew Healey Originally published at ・5 min read

I migrated from Jekyll to Gatsby recently and so far I've had a really neat time. The whole process took about a week of casual coding (a few hours here and there). The Gatsby ecosystem enabled me to quickly add a few features to my blog that I thought were missing; dark mode, better syntax highlighting, and the ability to design with components.

Gatsby starters are boilerplate Gatsby sites maintained by the community. One of the reasons I love them is that they use Semantic HTML. This is great because:

  • It helps with search engine optimization — web crawlers are able to understand which parts of your pages are important.
  • It helps with accessibility — for people who use non-traditional browsers and screenreaders.
  • It helps with maintenance — I was able to pick up a starter and understand what the different parts of the template referred to due to the semantic tags.

Take this example from gatsby-starter-blog — the most popular starter and the base for my current blog (in-line styling removed).

  <section dangerouslySetInnerHTML={{ __html: post.html }} />
  <hr />
    <Bio />

I've seen quite a few beginner web development resources that skip on semantic HTML and encourage what I'll call 'div-spamming'. The HTML5 spec weighs in on this issue.

Authors are strongly encouraged to view the div element as an element of last resort, for when no other element is suitable. Use of more appropriate elements instead of the div element leads to better accessibility for readers and easier maintainability for authors.

Coming from Jekyll

I started blogging with Jekyll a year ago because I hosted my blog on GitHub pages and it was the static site generator with the least friction. It was a great choice at the time as it enabled me to get up and running straight away.

I've seen many people warning others (engineers in particular) to avoid rolling their own blogging solutions. The advice is that you should start writing and publishing first. This is because building a blog can function as procrastination and who knows if you actually enjoy blogging (the activity) or the idea of having blogged (the achievement).

With Jekyll, I used basic markdown and transferring written content to Gatsby wasn't too hard. Images had to be moved from one disorganized folder into separate folders. URLs were a bit of a pain and took 1.5hrs of manual work. I wanted all of my old posts to keep their location on the web so I added a front matter tag called path to override the default naming scheme. My old URLs were too long and included categories (which I'm still to implement) so the path scheme from now on will be the title only.

I extended onCreateNode in gatsby-node.js. I'm not sure if this is the best practice way to implement this feature but it works great so far.

exports.onCreateNode = ({ node, actions, getNode }) => {
  const { createNodeField } = actions

  if (node.internal.type === `MarkdownRemark`) {
    // Check to use legacy path
    const slug = node.frontmatter.path || createFilePath({ node, getNode })
      name: `slug`,
      value: slug,

Syntax highlighting

Code excerpts show up in a lot of my posts and I like them to be easy to parse.

I installed gatsby-remark-prismjs for syntax highlighting and was up and running in about an hour with another hour spent tinkering styles to match my light/dark mode toggle. I use New Moon Theme by Tania Rascia for my code excerpts. I couldn't find a version of the theme for PrismJS so I extracted the styling from Tania's (MIT-licensed) blog. My site's general color theme is custom.

One of the reasons I'm mentioning plugins is that I found it hard to integrate them with Jekyll and I feel like it wasn't just my inexperience with Ruby that was holding me back. Perhaps it's due to the hype surrounding Gatsby which means there are up-to-date resources. I've contributed one (small) open-source fix to the Jekyll project and I would still recommend it for anyone looking for a sensible system for HTML/CSS that has wide community support e.g., GitHub pages, Netlify, etc. If you want to avoid JavaScript, Jekyll is the way to go.

For my light/dark mode I use gatsby-plugin-dark-mode which works well out of the box and has good (but not great) documentation. For theme-toggling, I researched and found that a common pattern was to declare CSS variables in body scope and then to override these variables in class scope. This way, the dark class can be added to the <body> tag which means dark CSS variables take precedence due to CSS Specificity. Classes are then toggled on and off the <body>, storing the preference in local browser storage.

body {
  --bg: #eaeaeb;
  --textNormal: #414158;

body.dark {
  --bg: #21212c;
  --textNormal: #eaeaeb;

Designing with components

The first React component I wrote for my blog was for wrapping the <ThemeToggler /> from gatsby-plugin-dark-mode into a component. It switches between a sun and a moon to let the user know which theme can be switched to. The base for this is the example code from the docs.

  {({ theme, toggleTheme }) => (
    <label style={{ cursor: `pointer`, opacity: 0.8 }}>
        style={{ display: `none` }}
        onChange={e => toggleTheme( ? "dark" : "light")}
        checked={theme === "dark"}
      {theme === "dark" ? `☀️` : `🌑`}

I've never used React as part of a blogging solution. I like the hierarchical UI approach that's encouraged. Including CSS-in-JS makes sense for the scale of my website. It's easier for me to reason about and quickly tinker with.

How I deploy

My website source exists in a GitHub repository. I write in markdown in VS Code, commit, and push. Netlify is connected to the repository and builds and deploys every commit to master. The build process takes 2m50s (30s locally).

I previously used Netlify for Jekyll and setting up either static site generator involved about 10 clicks and entering one or two build commands. The walkthrough covers everything.

Overall, the Gatsby experience has been very enjoyable. Everywhere I look in my online bubble (Twitter, DEV, people are talking about Gatsby. It's nice to be part of the crowd.

I'm also happy that my site (despite being React-based) works fine without JavaScript enabled (barring the theme toggle, which I might hide with <noscript> styling).

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Discussion (16)

supunkavinda profile image
Supun Kavinda

Nice post <3

I recently worked on integrating our commenting system with Gatsby. It was a great experience. Gatsby is well-designed and super fast.

btw, I have one suggestion for your blog. The background color of the body makes it hard to read the blog for a long time for me. I made it white and everything was fine. (Just my opinion)


healeycodes profile image
Andrew Healey Author

This is great feedback, thanks. I've brightened it 😊

supunkavinda profile image
Supun Kavinda

Now it's awesome!

Btw, if you like to check our commenting system,

here's the react library.
here's a tutorial on adding to Gatsby
here's a simple live demo.

You may like it. It's free and no tracking.


Thread Thread
healeycodes profile image
Andrew Healey Author

Looks like a cool alternative to Disqus I'll check it out.

dexygen profile image
George Jempty

I should maybe consider Gatsby but I want a blog that is incorporated into the rest of my site which uses Vue :(

healeycodes profile image
Andrew Healey Author

I've heard good things about Gridsome!

I've been using Vue at work lately and I'm really enjoying it so far 😊

dexygen profile image
George Jempty

Thanks because VuePress just seems like overkill to me. Actually though, all these solutions do to a large extent (in my opinion).

Last year for a handful of articles on my site I used my own fork of a static generator that works on the client side. It doesn't provide probably even 2% of the functionality that these other projects do and I largely just made some architectural improvements in my fork.

If you're interested in seeing what can be done with a client-side static content generator have a look at: And here is the view source for an article on my

If I could find a happy medium with just enough functionality for my needs and less complexity than most recommended solutions, I'd be quite happy

Thread Thread
healeycodes profile image
Andrew Healey Author

I haven't seen an example of a client-side static content generator so that's cool.

My favorite blogs are almost just plain text (one, two). I'm always torn between complexity (features/easy tinkering) and simplicity too.

Thread Thread
dexygen profile image
George Jempty

Haha I hope the content is good because those go just a little too far in terms of plain. I did put in the work on upstaged to be able to incorporate it into an existing design, I don't know I might just give it a shot again, and it might spur me on to further improve it. Thing is because it's client side I will still need server side functionality for categorizing posts and creating menus and such.

albertomontalesi profile image

I'm also using GatsbyJS for two websites and I really like it, very easy to use. Prior to Gatsby, my blog was built with Jekyll too, then I converted it to a WordPress site (yuck!) and now I'm on Gatsby.

I'm not sure if you know about it, but you should totally check out MDX, that allows you to write JSX inside of your markdown posts, allowing you to add components into your articles. I've written a short article about it if you don't know it yet.

healeycodes profile image
Andrew Healey Author

This looks very cool! I hadn't seen it before and it looks interesting. Thanks.

katieadamsdev profile image
Katie Adams

Really liked reading this! I've been going through a similar transition myself and seeing your perspective (so similar to mine) was fun. Great post. 😁

healeycodes profile image
Andrew Healey Author

Thanks Katie!

I found this article useful for generating custom paths (if you're doing that) 👍

katieadamsdev profile image
Katie Adams

Ooh lovely!

tiffany profile image
Tiffany White

How did you get internal pages on this starter? I tried this when I first used this theme and I couldn't figure it out at all.

Can you give me some pointers?

healeycodes profile image
Andrew Healey Author

I added them as .js files to get up and running.

There's a pattern in the starter for the 404 page.

page -> gatsby-starter-blog-demo.netlify.c...

file ->

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