Concepts like separation of concerns, logic decoupling or dependency injection are things we developers have heard more than a couple of times. At trivago, the Android app is developed using the Model View ViewModel (MVVM) architecture, aiming for views as dumb as possible, leaving the decision making to the view models. This leads to an increased test coverage since testing logic in views is something we can’t do that easily.
Learn Redis the hard way (in production)
For our products, like the trivago hotel search, we are using Redis a lot. The use cases vary: Caching, temporary storage of data before moving those into another storage or a typical database for hotel meta data including persistence. The main parts of the hotel search are built with PHP and the Symfony Framework for the frontend (web) and Java for the backend part. In this article, we will focus on the collaboration between our PHP application and Redis. Both are running fine, but it was a long and hard way up to the current situation. This is the story of how we learned to use Redis, including our failures and experience.
Code Review: Best Practices and Common Pitfalls
At trivago we have been using code reviews as a part of our process for a good while now. In the beginning they weren’t used by many teams but as word of their positive impact spread, more and more teams started adopting this practice, benefiting every day from its many advantages. Like any new practice it has been a learning process from the start. In this blog post I will cover why code reviews are incredibly beneficial when done right and will share what we have learned and which best practices we employ.
A Large-Scale JavaScript Re-Learning Initiative
While rolling out our brand-new JavaScript framework to the trivago Hotel Search, we started the largest teaching initiative that our dev department has seen so far. 40 developers, many workshops, many screencasts, some newly discovered teaching talent, some frustration, a lot of puzzle pieces. Read how it went.
One Year Working with Guilds
It has been about a year since we introduce the idea of guilds in trivago Software Engineering department in Düsseldorf. Here we share some of our learnings with it.
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Tackling hard problems is like going on an adventure. Solving a technical challenge feels like finding a hidden treasure. Want to go treasure hunting with us?
View all current job openingsConfiguration management - How to start testing your salt formulas
Configuration management tools have recently gained a lot of popularity. At trivago we use SaltStack to automate our infrastructure. As the complexity of configuration files and formulas is increasing, we need a fast, reliable way to test our changes.
An Inline SVG Icon System For Our Hotel Search Application
Around a year ago, in our large scale refactoring project also known as Project Ironman, we stepped away from image sprites that we used for our icons. In this post we will explain our reasoning behind this decision and how it improved maintainability and website performance.
MVVM-C A simple way to navigate
When thinking about design patterns and architectures in iOS development, MVC might be the first thing that comes to mind for most of you. But throughout the last years, MVC got a really bad reputation. Probably a lot of you heard about MVC as the massive view controller.
Prioritizing resources for a faster app startup
We’ve prioritized the resources that our users need to load and gained an impressive boost on our JavaScript application startup. In this article, I will explain how we’ve used Webpack, adjusted our handling of SVG icons and prioritized user needs to achieve up to 4.5 times faster startup.