Hex encoded Data swift

Data+HEX.swift

import Foundation

public extension Data {
    struct HexEncodingOptions: OptionSet {
        public let rawValue: Int
        public static let upperCase = HexEncodingOptions(rawValue: 1 << 0)
        
        public init(rawValue: Int) {
            self.rawValue = rawValue
        }
    }
    
    /// Represent data as HEX string
    func hexEncodedString(options: HexEncodingOptions = []) -> String {
        let format = options.contains(.upperCase) ? "%02hhX" : "%02hhx"
        return map { String(format: format, $0) }.joined()
    }
}