CODE EXAMPLE FOR TYPESCRIPT

ts Facade pattern

/*Proxy
The Proxy design pattern is a design pattern lets you provide a surrogate 
or placeholder object for another object to control access to it.

For example imagine you want to give students access to a 
library but you don't want them to be able to access the library directly.

First you need to make a library class:
*/
class Library {
  public getBooks() {
    console.log('Getting books...');
  }
}

// Then you make a proxy class that will give students access to the library:
class LibraryProxy {
  constructor(private library: Library) {}

  public getBooks() {
    this.library.getBooks();
  }
}

// Then you make your library:
const library = new LibraryProxy(new Library());
library.getBooks();