Code to load some data from the disk

LoadContentVC.swift

class MyViewController: UIViewController {
   var myPath: String
   var content: [MyModel]
  
   // ...
   
  func loadContent() {
    let fileManager = FileManager.default
    
    guard 
      let data = fileManager.contents(atPath: myPath),
      self.content = try? JSONDecoder().decode([MyModel].self, from data)
    else {
      self.content = []
      return
    }      
  }
}