Saving Data in iOS

May 31 2022 · Swift 5.5, iOS 15, Xcode 13

Part 2: JSON

14. JSON Encoding

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Previous episode: 13. Saving On Device Next episode: 15. Challenge: Encoding JSON Arrays

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Notes: 14. JSON Encoding

This course was originally recorded in April 2020. It has been reviewed and all content and materials updated as of November 2021.

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I’m 50% done with the whole “Forgetful Felipe” thing. I’m already remembering things thanks to the app loading stored data from the Document directory, but unfortunately it’s not saving any new things I don’t want to forget about.

private func saveJSONPrioritizedTask() {
  ...
}

let encoder = JSONEncoder()

do {
  
} catch let error {
  print(error)
}

let taskData = try encoder.encode(prioritizedTasks.first?.tasks.last)

let taskJSONURL = URL(fileURLWithPath: "Task",
                      relativeTo: FileManager.documentsDirectoryURL).appendingPathExtension("json")

try taskData.write(to: taskJSONURL, options: .atomicWrite)

@Published var prioritizedTasks: [PrioritizedTasks] = [] {
  didSet {
    saveJSONPrioritizedTask()
  }
}

let tasksJSONURL = URL(fileURLWithPath: "PrioritizedTasks",
                       relativeTo: FileManager.documentsDirectoryURL).appendingPathExtension("json")