Toptal Blog

Spring Boot gives very useful error messages to engineers building REST APIs. Yet, those same messages are noisy and useless for the API consumer, not to mention they reveal implementation details. Luckily, there are simple ways of handling this.

The argument for Type Design, what it is, and why it should be the next step in the evolution of UI from skeuomorphism and flat design.

In this article, I will try to give you a good understanding of which scenarios could be covered by Celery. Not only will you see interesting examples, but will also learn how to apply Celery with real world tasks such as background mailing, report generation, logging and error reporting. I will share my own way of testing tasks beyond emulation and explain a few tricks that go beyond the official documentation and took me hours of research to discover myself.

EBITDA is one of the most common metrics in finance. However, while intended to provide a “cleaner” picture of operating performance than net income, in reality it often achieves the opposite effect. It is also in many cases a questionable proxy for cash flow, as well as a dubious valuation tool.

Sketch is not a complex tool, but it’s array of features can save you a lot of time – especially Symbols. In this tutorial, learn how to nest symbols in Sketch.

Designers love Sketch for its simplicity. They love it thanks to its plugins, which add numerous features. Here are 50 of the very best plugins for Sketch.

A well-produced, high-quality pitch video can go a long way toward helping a business or individual gain credibility and secure funding. Here are 7 tips.

Though traditional economic theory posits that individuals are rational, we all know this to be an oversimplification of the truth. The cyclical investment process is rife with psychological pitfalls. Only by becoming aware of and actively avoiding innate behavioral biases can investors reach impartial decisions. Herein lies the true value of the emerging field of behavioral finance, which sheds light on true financial behavior.

The Model-View-Controller (MVC) design pattern is great for the longevity and maintainability of an iOS application’s codebase… but you may find yourself adding similar functions to multiple models as your app grows. In cases such as networking, moving common logic out of your model classes and into singleton helper classes can be a better approach. In this article, I’ll teach you how to set up a centralized singleton networking object that, decoupled from micro-level MVC components, can be reused throughout your application.

With augmented reality on the rise, more and more libraries and tools are developed to tap into that market. Apple recently released ARKit, which shows great promise through power and simplicity of use.

The advantages of SVG on the web go beyond producing resolution-independent graphics. With a little CSS and JavaScript, you can apply cool animations and effects to your front-end without requiring the user to install bulky plugins.

Want to improve your page load speeds for your responsive website? Here is a full list of everything you could do to improve your site’s loading times

Sharing related information among isolated systems has become increasingly important. There are many methods to choose from to perform that task for SQL Server, but it’s important to know which is better for each use case.

What is a heuristic analysis? How do you run one effectively by employing a group of usability experts to dramatically improve a product’s UX?

Everyone is familiar with Elon Musk the Entrepreneur, but what about Musk the Investor? In this article, we will look at how Musk has funded his ventures and managed his personal angel investments over his career, clever tactics that he has applied, and lessons learned from his experiences.

WordPress is a very popular way to get a site up and running quickly. However, in their haste, plenty of developers end up making horrible decisions. Some mistakes, like leaving WP_DEBUG set to “true,” may be easy to make. Others, like lumping all your JavaScript into a single file, are as common as lazy engineers. Whichever mistake you manage to make, read on to find out the 12 most common WordPress mistakes that new and seasoned developers make.

When it comes to large projects, browsing through layers in Sketch to understand what they do is not exactly a comfortable process even with good naming conventions. Unless you use something visual…like an emoji.

An image is worth a thousand words. Learn how to create outstanding illustrations with the Sketch plugin Looper.

Write better Ruby code by leveraging its metaprogramming features. In this article, you will learn how to create your own Ruby domain specific language (DSL).

As consumers, we’re familiar with AI: we benefit from cars that parallel park themselves, devices that respond when asked questions, and streaming platforms that suggest shows we may like. However, professionally, the larger question is how industries will harness the power of AI. In finance, AI offers opportunities for operational efficiencies in everything from risk management and trading to insurance underwriting.

It is now possible to more accurately shape experiences that dynamically personalize content by coupling behavioral design with data science and analytics.