API

Nearly every app requires an authorization system on top of an authentication system. We often need a fine-grained permissions model to allow only specific users to access certain resources while simultaneously restricting access for everyone else. In this tutorial, Toptal Freelance Firebase Developer Joaquin Cid teaches how to build just such a system. Called role-based authentication, we'll learn how to implement this system in an API using Node.js and Firebase.

ASP.NET Core is a leaner and more modular redesign of ASP.NET 4.x. In this article, Toptal Freelance ASP.NET Developer Damir Imangulov shows how to build a robust RESTful API using ASP.NET, EF Core, AutoMapper, and XUnit.

Non-Salesforce app developers may be overlooking a hidden gem in the AI world: Salesforce Einstein offers image recognition and text analysis for plain-vanilla apps and Salesforce apps alike. In this article, Toptal Freelance Salesforce Developer Fahad Munawar Khan shows how any developer can leverage Einstein Vision and Einstein Language.

The AI revolution is transforming the consumer world. Some developers may shy away from AI, which has traditionally been a heavily technical specialty. In this article, Toptal Freelance Salesforce Developer Fahad Munawar Khan explores how accessible to developers the AI cloud has become, even for non-Salesforce apps, with Salesforce Einstein.

Laravel is a PHP framework developed with developer productivity in mind. Written and maintained by Taylor Otwell, the framework is very opinionated and strives to save developer time by favoring convention over configuration. The framework also aims to evolve with the web and has already incorporated several new features and ideas in the web development world---such as job queues, API authentication out of the box, real-time communication, and much more. In this article, we'll explore the ways you can build---and test---a robust API using Laravel. We'll be using Laravel 5.4, and all of the code is available for reference on GitHub.

PhalconPHP will make your high-load application fast and easy, it's one of the fastest MVC frameworks for PHP available. It's written in C and supplied as a compiled PHP extension, so it doesn’t need to be interpreted at every request. Consider PhalconPHP for your next project, you won't regret it.

For a while, WordPress seemed to had fallen behind. As the web became more reliant on JavaScript to create immersive, interactive experiences, it became increasingly clear that WordPress needed to offer new ways for users and developers to interact with its content. In this post, Toptal Freelance Developer Brian Coords explores the amazing new features of WordPress's REST API, showing why WordPress is still on the cutting edge of web development.

Client-server interactions play a vital role in most modern mobile applications. By leveraging available back-end services, these mobile applications can provide some really amazing functionalities. However, as mobile applications grow complex, it becomes essential to keep the networking module as clean and maintainable as possible - separated from the rest of the application logic. In this article, Toptal freelance software engineer Alexander Gaidukov walks us through the design of a simple networking module that allows your iOS application to interact with RESTful APIs.

The rise of the web and mobile applications has led to an increased need for back-end API services. Ruby on Rails' philosophy seemingly makes it the ideal framework for creating back-end APIs. However, using Rails only for the API is overkill. In this article, Freelance Software Engineer Boško Ivanišević explores alternatives to Rails and introduces us to two very mature and powerful gems, Sinatra and Sequel, which in combination provide powerful tools for creating server-side APIs.