public static string Serialize(this CookieContainer cookieContainer)
{
var listCookieCollection = cookieContainer.GetAllCookieCollections();
var listBase64String = new List <string>();
foreach (var cookieCollection in listCookieCollection)
{
var cookieCollectionSerializer = new DataContractSerializer(typeof(CookieCollection));
using var memoryStream = new MemoryStream();
cookieCollectionSerializer.WriteObject(memoryStream, cookieCollection);
listBase64String.Add(Convert.ToBase64String(memoryStream.ToArray()));
}
var listSerializer = new DataContractSerializer(typeof(List <string>));
using var stream = new MemoryStream();
listSerializer.WriteObject(stream, listBase64String);
return(Convert.ToBase64String(stream.ToArray()));
}
