Print Data in Pretty JSON Format in Swift 5.1

dataPrettyPrintJSONString.swift

import Foundation

extension Data {
    var prettyPrintedJSONString: NSString? { /// NSString gives us a nice sanitized debugDescription
        guard let object = try? JSONSerialization.jsonObject(with: self, options: []),
              let data = try? JSONSerialization.data(withJSONObject: object, options: [.prettyPrinted]),
              let prettyPrintedString = NSString(data: data, encoding: String.Encoding.utf8.rawValue) else { return nil }

        return prettyPrintedString
    }
}
//Mark: Using
let data = Data()
print("data \(data!.prettyPrintedJSONString)")

// {
//   "userId": 1,
//   "id": 1,
//   "title": "delectus aut autem",
//   "completed": false
// }