Why We Switched From Webpack To Vite
At Replit, our mission is to make programming more accessible. We provide people with free compute in the cloud so...
- DevTools
- Vite
Slow and Steady: Converting Sentry’s Entire Frontend to TypeScript
Recently, Sentry converted 100% of its frontend React codebase from JavaScript to TypeScript. This year-long effort spanned over a dozen...
- Rewrites
- Typescript
DevTools architecture refresh: migrating DevTools to TypeScript
Following up on our migration to JavaScript modules and migration to Web Components, today we are continuing our blog post...
- Rewrites
- Typescript
How we scaled the GitHub API with a sharded, replicated rate limiter in Redis
About a year ago, we migrated an old rate limiter in order to serve more traffic and accommodate a more...
- Redis
- API
React at 60fps: improving scrolling comments in Figma
Figma enables closer collaboration between designers and non-designers by tightening the feedback loop. By commenting directly on a file or...
- JavaScript
- ReactJS
React Native @ The Knot
Our React Native app started as a project for one of our company hackathons. A small group of engineers from...
- React Native
- JavaScript
LinkedIn’s approach to automated accessibility (A11y) testing
Accessibility (A11y) Engineering at LinkedIn aims to streamline accessible product development and maintenance. We think about how tooling can help...
- A11y
- Software Testing
Changing Lanes: How Lyft is Migrating 100+ Frontend Microservices to Next.js
Lorem ipsum, dolor sit amet consectetur adipisicing elit. Explicabo nulla fuga necessitatibus illo quae soluta, facilis hic minus, iste similique...
- NextJS
- ReactJS
Building a Bank with Next.js: How We Use Next.js at Monzo
Lorem ipsum, dolor sit amet consectetur adipisicing elit. Explicabo nulla fuga necessitatibus illo quae soluta, facilis hic minus, iste similique...
- NextJS
- ReactJS
How Micro Frontend Has Changed Our Team Dynamic
Since its first start in 2016, the term “Micro Frontend” has been gaining popularity in the frontend world; especially in...
- Microfrontend
- Microservices
Building dark mode on Stack Overflow
On March 30, 2020, we enabled folks to opt into a beta dark mode on Stack Overflow. Let’s talk about...
- Darkmode
- A11y
Speed By A Thousand Cuts
In 2019, eBay prioritized a company-wide initiative, aptly called “Speed,” focused on improving the performance of critical eBay flows across...
- Performance
Developing in a Monorepo While Still Using Webpack
At Etsy, we have a whole lot of JavaScript. This alone doesn’t make us very unique, but we have something...
- Monorepos
- Webpack
Rebuilding our tech stack for the new Facebook.com
Facebook.com launched in 2004 as a simple, server-rendered PHP website. Over time, we’ve added layer upon layer of new technology...
- Rewrites
- Performance
React at 60fps: improving scrolling comments in Figma
Since we first introduced Figma, we’ve been making consistent improvements to reach new levels of scale. As more users leave...
- JavaScript
From 48k lines of code to 10—the story of GitHub’s JavaScript SDK
In 2017, GitHub hired me to turn github into the official JavaScript SDK for GitHub’s APIs, for both Node.js and...
- Performance
- Refactors
How we built the GitHub globe
itHub is where the world builds software. More than 56 million developers around the world build and work together on...
- Redesigns
- Performance
ts-migrate: A Tool for Migrating to TypeScript at Scale
TypeScript is the official language of frontend web development at Airbnb. Yet, the process of adopting TypeScript and migrating a...
- TypeScript
- Refactors
Migrating to React land: Gatsby
Through porting our documentation site to Gatsby I learned a lot. In this post, I share some of the learnings...
- Migrations
- ReactJS
App shell UX with service workers and streams
Single-page app (SPA) is an architectural pattern in which the browser runs JavaScript code to update the existing page when...
- Performance
- Workers
App shell UX with service workers and streams
We believe that Discord is for everyone — which is why we’ve been hard at work this year to improve...
- A11y
Monitoring Data Quality at Scale with Statistical Modeling
Good business decisions cannot be made with bad data. At Uber, we use aggregated and anonymized data to guide decision-making,...
- Data Science
- System Design
Why We Leverage Multi-tenancy in Uber’s Microservice ArchitectureMonitoring Data Quality at Scale with Statistical Modeling
The performance of Uber’s services relies on our ability to quickly and stably launch new features on our platform, regardless...
- Microservices
- Architecture
The Great CoffeeScript to Typescript Migration of 2017
When I first joined Dropbox in May 2017, we were at the tail end of our CoffeeScript to TypeScript migration....
- Migrations
- TypeScript
JQuery to React: How we rewrote the HelloSign Editor
HelloSign is a Dropbox company that provides a Web-based eSignature solution: If you have a document you want someone to...
- Rewrites
- React
The Unexpected Find That Freed 20GB of Unused Index Space
Every few months we get an alert from our database monitoring to warn us that we are about to run...
- Django
- Postgress
Building a Modern Bank Backend
At Monzo, we’re building a banking system from scratch. Our systems must be available 24x7 no matter what happens, scalable...
- Go
- microservices
Making GitHub’s new homepage fast and performant
Creating a page full of product shots, animations, and videos that still loads fast and performs well can be tricky....
- WebGL
- Perf
Visualizing GitHub’s global community
When we kicked off the project, we knew that we didn’t want to make just another animated globe. We wanted...
- WebGL
- CSS
Uber’s Real-Time Push Platform
The nature of real time marketplaces make them very lively. Over the course of a trip, there are multiple participants...
- APIs
- Perf
Operating Apache Pinot @ Uber Scale
Uber has a complex marketplace consisting of riders, drivers, eaters, restaurants and so on. Operating that marketplace at a global...
- Data Science
- APIs
Revolutionizing Money Movements at Scale with Strong Data Consistency
Uber as a platform invites its users to leverage it, earn from it, and be delighted by it. Serving more...
- Data Science
- Scale
How we created a dark UI for GitLab's Web IDE
One of the most popular and exciting feature requests we often hear about from our amazing community is a dark...
- Darkmode
- Redesigns
6 Lessons learned from optimizing the performance of a Node.js service
Here at Klarna, we put a lot of effort into empowering our developers to deliver high-quality and secure services. One...
- NodeJS
- Performance
Uber’s Real-time Data Intelligence Platform At Scale: Improving Gairos Scalability/Reliability
Real-time data (# of ride requests, # of drivers available, weather, game) enables operations teams to make informed decisions like...
- Perf
- SRE
Designing Edge Gateway, Uber’s API Lifecycle Management Platform
In October 2014, Uber had started its journey of scale in what would eventually turn out to be one of...
- APIs
- system design
Editing Massive Geospatial Data Sets with nebula.gl
Geospatial data, or data tied to a specific, real-world location, is integral to Uber’s ability to better understand the cities...
- Data Science
- system design
Building a Large-scale Transactional Data Lake at Uber Using Apache Hudi
From ensuring accurate ETAs to predicting optimal traffic routes, providing safe, seamless transportation and delivery experiences on the Uber platform...
- Data Science
- system design
Inside Uber ATG’s Data Mining Operation: Identifying Real Road Scenarios at Scale for Machine Learning
Contrary to popular belief, sometimes the answer isn’t as simple as “to get to the other side.” To bring safe,...
- Data Science
- Machine Learning
How we built the GitHub globe
With our new homepage, we wanted to show how open source development transcends the borders we’re living in and to...
- WebGL
- CSS
How We Illustrate at GitHub
In the fourth installment of our five-part series on building GitHub’s new homepage, we’ll explore the artistic pipeline at GitHub...
- WebGL
- CSS
Building Uber’s Go Monorepo with Bazel
In traditional industries such as automobile or aerospace, engineers first design the products and the manufacturing facilities produce the cars...
- Monorepos
- Go
Under the Hood of Uber ATG’s Machine Learning Infrastructure and Versioning Control Platform for Self-Driving Vehicles
As Uber experienced exponential growth over the last few years, now supporting 14 million trips each day, our engineers proved...
- Machine Learning
- Data Science