Gain insights into Kotlin language essentials and delve into design patterns and best practices. Discover functional programming techniques to enhance code reuse, robustness, and build reliable, scalable projects.

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Design patterns enable developers to speed up the development process by providing proven development paradigms. Reusing design patterns helps prevent complex issues that can cause major problems. Moreover, it improves your codebase, promotes code reuse, and makes an architecture more robust.

In this course, you will start with a gentle introduction of the Kotlin language. You will explore design patterns that are part of the best practices that help developers use Kotlin efficiently. Design patterns appeared in the era of object-oriented languages such as C++ and Java. You will learn the language features that Kotlin provides, which allow developers to program in a functional style and implement the design patterns.

After taking this course, you’ll be able to take your knowledge of Kotlin, design patterns, and associated best practices to the software industry and apply it to build reliable, scalable, and maintainable projects.

Kotlin Design Patterns and Best Practices

The use of "facade" as a term to refer to a design pattern comes directly from building architecture. That is, a facade is the face of a building that is normally made to look more appealing than the rest of it. In programming, facades can help to hide the ugly details of an implementation.



The **Facade design pattern** itself aims to provide a nicer, simpler way to work with
a family of classes or interfaces. As we know, the Abstract Factory design pattern focuses on creating related classes, while the Facade design pattern focuses on working with those classes once they have been created.

To better understand this, let's assume we have a configuration for our server written in a YAML file:


server:
  port: 8080
  environment: production


In order to be able to start our server from a configuration using our Abstract Factory, we could provide users of our library with a set of instructions:
* Check if the given file is `.json` or `.yaml` by trying to parse it with a JSON parser. 
* If we received an error, try parsing it using a **YAML** parser.
* If there were no errors, pass the results to the Abstract Factory to create the necessary objects.

Learn how to implement the Facade pattern in Kotlin. 

Getting Started with Kotlin

Working with Creational Patterns

Understanding Structural Patterns

Getting Familiar with Behavioral Patterns

Introducing Functional Programming

Threads and Coroutines

Controlling the Data Flow

Designing for Concurrency

Idioms and Anti-Patterns

Concurrent Microservices with Ktor

Reactive Microservices with Vert.x

Conclusion

Facade Design Pattern