Fayllarni faqat o'z vositalaringiz bilan, uchinchi tomon kutubxonalarisiz qanday qilib kesh qilish mumkin?

HTTP/HTTPS so'rovlar uchun URLCache, faylni kesh qilish uchun FileManager va kichik, oddiy ma'lumotlar uchun UserDefaults dan foydalanish.

// URLCache bilan misol
let configuration = URLSessionConfiguration.default
configuration.requestCachePolicy = .reloadIgnoringLocalCacheData // Misol siyosat
let session = URLSession(configuration: configuration)

let url = URL(string: "https://example.com/api/data")!
let task = session.dataTask(with: url) { data, response, error in
    // Ma'lumotlarni ishlash
}
task.resume()

// FileManager bilan misol (ma'lumotlarni faylga kesh qilish)
let fileManager = FileManager.default
let cacheDirectory = fileManager.urls(for: .cachesDirectory, in: .userDomainMask).first!
let fileURL = cacheDirectory.appendingPathComponent("cached_data.txt")

// Ma'lumotlarni yozish
let dataToCache = "Some cached data".data(using: .utf8)!
do {
    try dataToCache.write(to: fileURL)
} catch {
    print("Faylga yozishda xato: \(error)")
}

// Ma'lumotlarni o'qish
do {
    let cachedData = try Data(contentsOf: fileURL)
    let cachedString = String(data: cachedData, encoding: .utf8)
    print("Keshdagi ma'lumotlar: \(cachedString ?? "nil")")
} catch {
    print("Faylni o'qishda xato: \(error)")
}

// UserDefaults bilan misol (oddiy ma'lumotlarni kesh qilish)
let defaults = UserDefaults.standard

// Ma'lumotlarni yozish
defaults.set("cached_value", forKey: "myCachedKey")

// Ma'lumotlarni o'qish
let cachedValue = defaults.string(forKey: "myCachedKey")
print("UserDefaults dan keshlangan qiymat: \(cachedValue ?? "nil")")