Management thinks that letting folks from WidgetCo log into widgetco.ourapp.com will really help make the sale. It seems harmless enough. But using a custom subdomain like this can open WidgetCo up to potential security issues. In this article, Julien Cretel introduces us to Subdomain Takeover attacks and discusses ways we can mitigate them.
ActiveRecord makes accessing your database easy, but it can also help make it faster by its intelligent use of caching. In this article, Jonathan Miles shows us the tricks that Rails uses to ensure that your database isn't doing more work than it needs to.
For quick, scalable, highly-available web services, few options compare to AWS Lambda. Just provide your code, add a little configuration, and you're done! In this article, Milap Neupane will introduce us to Lambda, show us how to get it working with Ruby and the Serverless Framework, and discuss reasons to use — or to not use! — Lambda in production.
When picking a language for your next project, few things are more critical than the tooling it provides. In this article, Ayooluwa Isaiah wraps up our Go for Rubyists series with an introduction to go tooling.
Every Rails app has a breaking point; a level of activity that it simply cannot handle. Your braking point depends on big architectural decisions, yes — and also on the tiniest changes committed by your most junior developer. That's why it's vital to regularly test your application's performance under load. In this article, Milap Neupane gives us a Rails-centric introduction to load testing with a powerful open-source tool called JMeter.
Many of the concepts you're already familiar with as a web developer are applicable in Go. In this article, Ayooluwa Isaiah shows us how middleware, templating, and other aspects of the go language work together to create a coherent web-development experience.
If you're coming to Python from another language, it's normal to feel a little confused about object instantiation and inheritance - especially when people start talking about "metaclasses." In this article, Rupesh Mishra explains how instantiation, inheritance, and - yes - even metaclasses work in Python.
You'll probably never implement sorting from scratch. But sorting algorithms are foundational in computer science and have become a standard feature of the ritual hazing...er...interview process for developers at all levels. In this article, Julie Kent introduces us to the merge sort algorithm. She'll show us how it works, implement it in ruby, and discuss its performance characteristics.