Facade Design Pattern in Swift

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The Facade Design Pattern is a software design pattern that provides a simple interface to a complex system, making it easier to use and understand. In this article, we will explore the Facade Design Pattern and provide a Swift example to illustrate its use.

Overview of the Facade Design Pattern:

The Facade Design Pattern is a structural pattern that is used to simplify a complex system by providing a simple interface to it. The Facade acts as an interface to the complex system, shielding the client from its complexities. This makes it easier to use and understand, as the client does not need to know the inner workings of the system.

Swift Example of the Facade Design Pattern:

Let’s consider a simple example to illustrate the Facade Design Pattern in Swift. Suppose we have a complex system that consists of several classes, such as a database connection, a file system, and a network connection. We want to create a Facade class that provides a simple interface to these classes. Here’s how we can do it:

class Database {
    func connect() {
        print("Connecting to database")
    }
    
    func disconnect() {
        print("Disconnecting from database")
    }
}

class FileSystem {
    func read(file: String) -> String {…