Several years ago, I got the “Pro ASP.NET Web API” book. This article is the offshoot of ideas from this book, a little CQRS, and my own experience developing client-server systems. In this article, I’ll be covering: Why ASP.NET Core? ASP.NET Core provides many improvements over the ASP.NET MVC/Web API. Firstly, it is now one framework and not two. I really like it because it is convenient and there is less confusion. Secondly, we have logging and DI containers without any additional libraries, which saves me time and allows me to concentrate on writing better code instead of choosing and analyzing the best libraries. What Are Query Processors? A query processor is an approach when all business logic relating to one entity of the system is encapsulated in one service and any access or actions with this entity are performed through this service. This service is usually called {EntityPluralName}QueryProcessor. If necessary, a query processor includes CRUD (create, read, update, delete) methods for this entity. Depending on the requirements, not all methods may be implemented. To give a specific example, let’s take a look at ChangePassword. If the method of a query processor requires input data, then only the required data should be provided. Usually, for each method, a separate query class is created, and in simple cases, it is possible (but not desirable) to reuse the query class. Our Aim In this article, I’ll show you how to make an API for a small cost management system, including basic settings for authentication and access control, but I will not go into the authentication subsystem. I will cover the whole...
As a result of smartphones and mobile applications becoming so popular, web developers have been looking for ways to create mobile applications using JavaScript. This popularity resulted in the development of many JavaScript frameworks capable of running native-like applications on mobile devices. Currently, Cordova and React Native are the most popular choices. Cordova supports iOS, Android, and Windows Phone mobile platforms. With React Native, on the other hand, Android, iOS, and UWP are targets for developers. (UWP stands for Universal Windows Platform, Microsoft’s platform that allows the same application to run on Windows Phone 10 Mobile, XBox One and Windows 10.) From the surface, it appears that React Native and Cordova are occupying the same space. However, as with all technologies, there are aspects where one shines, and the other falls short. So, to get a better picture of each technology, and to learn their advantages and pitfalls, we will dive into details of each and compare them across different disciplines. Differences in Philosophy It’s important to remember that React Native’s tagline, “Learn once, write anywhere” differs from the usual cross-platform mantra, “Write once, run anywhere.” This leads to two things: Firstly, we can’t just take our existing React codebase from our web project and turn it into a mobile application in just a few clicks. However, React and React Native do share a lot of key concepts with one example being their component systems, and as a result, React Native feels instantly familiar. While React shares a lot of similarities with React Native, there are some core differences, which ranges from the way stylesheets are handled to the...
SmarterASP.NET, an ASP.NET hosting provider with more than 440,000 customers, was hit yesterday by ransomware. The company is the third major web hosting firm this year that went down because hackers breached their network and encrypted data on customer servers. At the time of writing, SmarterASP.NET said it’s working to restore customers’ servers. It is unclear if the company paid the ransom demand, or is restoring from backups. A phone call to SmarterASP.NET was not returned. The company’s phone line was down, citing an influx of calls. In a status message posted on its website, the company admitted to the hack. “Your hosting account was under attack and hackers have encrypted all your data,” the message said. “We are now working with security experts to try to decrypt your data and also to make sure this would never happen again.” Attack happened on Saturday The attack didn’t just hit customer data, but also SmarterASP.NET itself. The company’s website was down all day on Saturday, coming back online earlier today on Sunday morning. Server recovery efforts are going slow. Many customers still don’t have access to their accounts and data. Those who do say their data is still encrypted, including website files but also backend databases. While most users where using SmarterASP.NET for hosting ASP.NET sites, some were using the company’s serves as app backends, where they were synchronizing or backing up important data. The fact that backend databases have also been hit, and not just public-facing web servers, has prevented many from moving impacted services to alternative IT infrastructure. According to screenshots posted on Twitter, all customer files have...
With the rise of mobile development and JavaScript frameworks, using a RESTful API is the best option to build a single interface between your data and your client. Laravel is a PHP framework developed with PHP 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 tutorial, we’ll explore the ways you can build—and test—a robust API using Laravel with authentication. We’ll be using Laravel 5.4, and all of the code is available for reference on GitHub. RESTful APIs First, we need to understand what exactly is considered a RESTful API. REST stands for REpresentational State Transfer and is an architectural style for network communication between applications, which relies on a stateless protocol (usually HTTP) for interaction. HTTP Verbs Represent Actions In RESTful APIs, we use the HTTP verbs as actions, and the endpoints are the resources acted upon. We’ll be using the HTTP verbs for their semantic meaning: Update Action: PUT vs. POST RESTful APIs are a matter of much debate and there are plenty of opinions out there on whether is best to update with POST, PATCH, or PUT, or if the create action is best left to the PUT verb. In this article we’ll be using PUT for the update action, as according to the HTTP RFC, PUT means to create/update...
To build a single product, mobile app development is a process that includes multiple different tasks. Only a professional app developer can perfectly do this as per the user requirements. Nowadays, building the best mobile app is the priority of numerous companies in the market. Therefore, to compete with one other, they hire an experienced developer. If you are also one of them and want to hire the best developer then, we at DM360 offer you the ultimate service, as we are the well-known mobile app development company in Chicago’s company. Also, we develop apps either in hybrid or native processes. In this blog, we are going to discuss the prime benefits of native app development which assist you to explore your business: To have a look at the advantages of native app development, first, you should understand what it means: Native mobile app development includes making apps specifically for mobile operating systems, & users access them from dedicated app stores. So, if you mean to build an iOS application, our app developers will use programming languages Objective-C or Swift. However, developing for Android, we use programming languages Java or Kotlin. Now, let’s take a look at the benefits of its: Excellent performance: The app is developed and optimized for a particular platform with the usage of native mobile app development, which in the resultant delivers the highest level of the performance. The usage of native app development is that it is very responsive and quick; the reason is that this builds only for the particular platform and uses language such as API and programming which is more efficient....
Today, we are announcing .NET Core 3 Preview 2. It includes new features in .NET Core 3.0 and C# 8, in addition to the large number of new features in Preview 1. ASP.NET Core 3.0 Preview 2 is also released today. C# 8 Preview 2 is part of .NET Core 3 SDK, and was also released last week with Visual Studio 2019 Preview 2. Download and get started with .NET Core 3 Preview 2 right now on Windows, macOS and Linux. In case you missed it, we made some big announcements with Preview 1, including adding support for Windows Forms and WPF with .NET Core, on Windows, and that both UI frameworks will be open source. We also announced that we would support Entity Framework 6 on .NET Core, which will come in a later preview. ASP.NET Core is also adding many features including Razor components. Please provide feedback on the release in the comments below or at dotnet/core #2263. You can see complete details of the release in the .NET Core 3 Preview 2 release notes. .NET Core 3 will be supported in Visual Studio 2019, Visual Studio for Mac and Visual Studio Code. Visual Studio 2019 Preview 2 was released last week and has support for C# 8. The Visual Studio Code C# Extension (in pre-release channel) was also just updated to support C# 8. C# 8 C# 8 is a major release of the language, as Mads describes in Do more with patterns in C# 8.0, Take C# 8.0 for a spin and Building C# 8.0. In this post, I’ll cover a few favorites that are new...
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