NSDictionary *dictionary = @{@\"A\" : @\"alfa\", @\"B\" : @\"bravo\", @\"C\" : @\"charlie\",
Pretty print from Data object:
let jsonObj = try JSONSerialization.jsonObject(with: data, options: []) let jsonData = try JSONSerialization.data(withJSONObject: jsonObj, options: [.prettyPrinted]) print(String(data: jsonData, encoding: .utf8)!)