Wix Engineering Blog

Wix engineering blog tells the story of our daily challenges and our way of solving them. Read about architecture, scaling, mobile and web development.

Building Smart ETLs Using Iceberg Metadata

Jan 17, 20234 min read

Database

Building Smart ETLs Using Iceberg Metadata

The challenge Business is dynamic and constantly changing. And so are the KPIs and logic that the business analytics are based on. For...

Things to Know Before Running DB Changes

Aug 24, 20224 min read

Database

Things to Know Before Running DB Changes

TL;DR: Database changes are different from code changes and require more planning. Especially when you do a gradual migration with...

The Art of Data Science, E15: Full Transcript

Sep 30, 202111 min read

Database

The Art of Data Science, E15: Full Transcript

All data science projects are composed of the algorithm (model) and the data. While data scientists are natively focused on math and...

The Reactive Monolith - How to Move from CRUD to Event Sourcing

Sep 29, 20217 min read

API

The Reactive Monolith - How to Move from CRUD to Event Sourcing

Photo by Alex Wong on Unsplash We all heard that story before: The big monolith which brings so much business value and faithfully serves...

Wix Engineering Tech Interviews: Martin Kleppmann & Natan Silnitsky

Aug 26, 202119 min read

Engineering Culture

Wix Engineering Tech Interviews: Martin Kleppmann & Natan Silnitsky

We love telling the stories behind the daily challenges we face and how we solve them. We also love hearing about the insights,...

Coding with the CEO, E14: Full Transcript

Jul 27, 202113 min read

Engineering Culture

Coding with the CEO, E14: Full Transcript

Is good enough good enough? For years Wix engineers were building fine services, but as systems became more complex, it was taking too...

Jul 19, 20218 min read

Database

Wix Inbox Journey: 3 Approaches for Zero Downtime Database Migration

Before we begin: I’d like to first point out that it doesn’t really matter what the source and the destination databases are in the...

Auto-Autocomplete: Generating Docs and Autocomplete at Scale

Jul 14, 20214 min read

Open Source

Auto-Autocomplete: Generating Docs and Autocomplete at Scale

In the past few months, the Velo by Wix team upgraded our large-scale open-source documentation and code completion system. It allows...

Jun 14, 20218 min read

Open Source

Change Data Capture at DeviantArt

DA Intro and Problem description DeviantArt is a vast social network with the purpose to entertain, inspire and empower the artist in all...

May 31, 202115 min read

API

Platformization, E12: Full Transcript

Platformization is technical, high-level work. But that doesn’t mean any talented developer can learn it like they would, say, a...

Moving Velo to Multiple Container Sites: The Why, The How and The Lessons Learned

May 30, 20215 min read

Database

Moving Velo to Multiple Container Sites: The Why, The How and The Lessons Learned

Intro Velo by Wix (formally known as Corvid) is a framework that allows Wix users to write backend and frontend code for their sites....

Apr 21, 20216 min read

Testing

A Look Inside Payments by Wix

Photo by Devon Janse van Rensburg on Unsplash Payments by Wix is not just a name for the platform within Wix.com that powers millions of...

Scaling Bazel External Dependencies at Wix

Feb 8, 20215 min read

Database

Scaling Bazel External Dependencies at Wix

Photo by Felix Mittermeier on Unsplash In the recent past at Wix Engineering we migrated our backend systems to the Bazel build system....

How We’re Able to Host 1 Million Sites per MongoDB Cluster

Aug 25, 20204 min read

Database

How We’re Able to Host 1 Million Sites per MongoDB Cluster

Photo by Shiro hatori on Unsplash When you need to store millions of databases with multiple collections efficiently, what do you do?...

Aug 6, 201911 min read

Web Development

Scaling up Wix Pages Storage

More and more times in the last few months our team started getting alerts during non-working hours about issues in our databases. What...

Revocable User Sessions with (Probably) No DB Access — A Passing Thought

Feb 6, 20198 min read

Database

Revocable User Sessions with (Probably) No DB Access — A Passing Thought

When it comes to authorization, we constantly find ourselves having to balance between consistency and availability. On one hand, we do...

Sep 18, 20175 min read

Database

The Cost of Streaming Data from MySQL

Though the question of “How to query data from a database?” is quite an old one, we still have a reason to investigate it nowadays. True,...

Scaling to 100M: MySQL is a Better NoSQL

Nov 25, 20165 min read

Database

Scaling to 100M: MySQL is a Better NoSQL

MySQL is a better NoSQL. When considering a NoSQL use case, such as key/value storage, MySQL makes more sense in terms of performance,...