Ktor is a multiplatform toolkit built by JetBrains for creating Web applications in Kotlin. It makes use of coroutines for high scalability and offers an easy-to-use API. It makes use of coroutines for high scalability and offers an easy-to-use API.
JetBrains Account, the system responsible for the entire license sales and validation process at JetBrains, is written in 100% Kotlin and has been running in production since 2015 with no major issues. AWS Labs provides a sample project showing the use of Kotlin for writing AWS Lambda functions.
Start using Kotlin today!
If the plugin is not activated, enable it on the Plugins page of the IDE settings Control+Alt+S as described in Install plugins. There are many User Groups and Meetups now focused exclusively around Kotlin. In addition, there are community-organized Kotlin Nights events around the world.
Find out more about what’s on the roadmap and the plans moving forward. To work with GraphQL there’s graphql-kotlin library maintained by Expedia Group engineers. There are also a number of frameworks that are implemented in Kotlin. Kotlin is one of the four major themes for Spring Framework 5.x.
What is Kotlin?
In fact, Spring’s official documentation features code samples in both Java and Kotlin. This is very convenient if you’re new to Kotlin, because you can see the code sample in Java and then immediately see its Kotlin equivalent and so understand the idioms faster. Kotlin has great support and many contributors in its fast-growing global community. Enjoy the benefits of a rich ecosystem with a wide range of community libraries. Help is never far away — consult extensive community resources or ask the Kotlin team directly. Here you’ll learn how to develop and improve your cross-platform mobile application using Kotlin Multiplatform.
To get started, we need to set up a new Kotlin project using a build system like Gradle or Maven. Once the project is set up, we can configure the necessary dependencies for Ktor and Kotlin Exposed. This enables you to gradually transition a project to Kotlin or use both languages in parallel, https://www.globalcloudteam.com/ for example, by using Kotlin for testing an existing Java codebase. You can learn all the Kotlin essentials while creating working applications with the Kotlin Core track by JetBrains Academy. From there you can download the compiler, try it online as well as get access to resources.
Can I use Kotlin for desktop development?
This leads to more scalable and efficient backend applications. Extension functions allow developers to add new functions to existing classes without modifying their source code. This feature promotes code reuse and improves the readability and maintainability of the codebase.
- Kotlin’s support for Coroutines helps you build server-side applications that scale to massive numbers of clients, with modest hardware requirements.
- By leveraging libraries like Ktor and Kotlin Exposed, developers can build efficient and maintainable backend systems.
- You can use it in both OO and FP styles, or mix elements of the two.
- In addition to using for backend web, you can also use Kotlin/Wasm for client-side web.
- Here is how you can take the first steps in developing Kotlin server-side applications.
- With first-class support for features such as higher-order functions, function types and lambdas, Kotlin is a great choice if you’re doing or exploring functional programming.
- Google Cloud Platform offers a series of tutorials for deploying Kotlin applications to GCP, both for Ktor and App Engine and Spring and App engine.
The productivity of cross-platform development, the performance of native mobile apps and the openness of the web. Bringing modern mobile languages like Kotlin to the Web required solving challenging technical problems like multi-language garbage collection and JavaScript interoperability. You can learn more in the session on new WebAssembly languages from this year’s Google I/O conference. In this test example, we have created one test user and two mock articles and then we stated that for every repository request to find all articles, we return a list of mocked articles. After preparations for the test, we can compose a mock HTTP request using MockMVC. We are telling MockMVC to perform a GET request on ‘/api/article’ and to expect content in the JSON format.
Build your next web app with Koltin
Support for multiplatform programming is one of Kotlin’s key benefits. It reduces time spent writing and maintaining the same code for different platforms while retaining the flexibility and benefits of native programming. The problem that many Java developers are familiar with is NullPointerException that happens when accessing null reference from code and causes runtime errors and crashes.
In this blog, we will cover a few of the best Kotlin features for your web application. A greater proportion of Kotlin developers are using libraries and frameworks in 2021 than before.The popularity of the top Kotlin libraries created by JetBrains is increasing. Coroutines, the most popular library, has increased its share by 10 percentage points since last year.Serialization and Test have raised their presence by 9 and 6 percentage points respectively. In their tasks, roughly a quarter of Kotlin users apply Ktor, an asynchronous framework for creating microservices, web applications, and more.
Our insights and experience
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One of the tasks that consume a lot of time when programming in Java is creating Data Classes. The operation bears risks of creating additional bugs in the program which results in longer bug fixing iterations. As a result, the code is more readable and there are fewer errors during the development process. Doodle applications use the browser’s graphics capabilities to draw user interfaces instead of relying on DOM, CSS, or Javascript.
More web frameworks
In Kotlin, a developer cannot directly assign null value to any object or variable. Instead, it uses a safe call operator (?.) to check for null references; it executes any action only if the reference has a non-null value. The solution decreases the number of errors and makes coding easier.
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