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Thread Engineering

Custom Elements for React
17 April, 2019 – Jack Franklin

At Thread we are moving away from server driven rendering via traditional templating to a JavaScript lead frontend. This is a big undertaking and one that we have to be able to do incrementally whilst we continue to build new features. That means it's not practical for us to completely drop our…

CSS Modules (strict mode)
18 March, 2019 – Stephen Cook

At Thread, we love CSS Modules. One issue we kept seeing was references to styles.foo long after someone removed the .foo class. This dead code seems innocent enough, but over time this bit rot adds significant noise to your code. A more embarrassing issue I kept seeing involved long moments of…

GraphQL Interfaces vs Unions
28 October, 2018 – Dan Palmer

GraphQL’s type system allows us to make many invalid states impossible to represent, which improves the usability and reliability of our APIs. Two features of the type system that contribute significantly to this are Interfaces and Unions, however they can be used to address similar design…

Searching and sorting text with diacritical marks in JavaScript
29 August, 2018 – Paul Springett

We’ve been busy rebuilding Thread’s frontend codebase using React , and lately that’s included rebuilding our browse filters . These filters allow customers to find products more easily by selecting which brands, colours or prices they want to see. Because some of our filters contain a lot of…

Dealing with legacy code in React
10 May, 2018 – Jack Franklin

At Thread we’ve a large, five year old codebase that has lived through several frameworks, libraries and techniques, particularly on the frontend. These days we’re primarily writing our frontend in React , using CSS Modules . In contrast, most of our old frontend code is jQuery layered on top of…

Scaling Django Codebases at PyCon UK 2017
02 March, 2018 – Dan Palmer

Four of us from the Thread engineering team went to PyCon UK again in September for the third year running, and I was lucky enough to have my talk selected. At Thread we use Django for the backend of the main site which has grown to over 350 “apps” , and various members of the team have used the…

Speed or quality? With Test & Delivery you don’t have to choose
07 February, 2018 – Thomas May

We’ve all been there: that new feature you’ve been obsessively refining over the last few months is finally ready to go live. You’re glowing with pride for what you and your team has built. But when release day finally rolls around, it does… well, nothing. No movement to your KPIs and a lukewarm…

How and why we teach non-engineers to use GitHub at Thread
04 January, 2018 – Dan Palmer

At Thread one of our core beliefs is that technology allows for great change. This is important to our product, but it’s also important to how we work internally. Because of this way of working, we try to represent everything in data—products, measurements, styles, suppliers, locations in our…

Engineering culture at Thread
10 November, 2017 – Ben Phillips

Why should you care about the culture at your company? After all, aren’t we just engineers getting together to build something and change the world? Your culture is the machine that builds your product. It’s the values that a group of people share. In this post I’ll discuss culture in a bit more…

Open Source

strict-css-modules-loader
thread/strict-css-modules-loader

    elm-web-components
    thread/elm-web-components

      Jacquard
      prophile/jacquard

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