public void LoginInBackground(string authenticationToken, Action <MobileServiceUser, Exception> continueWith)
{
// Proper Async Tasks Programming cannot integrate with Windows Phone (stupid) Async Mechanisim which use Events... (ex: UploadStringCompleted)
//var asyncTask = new Task<MobileServiceUser>(() => this.StartLoginAsync(authenticationToken));
//asyncTask.Start();
//return asyncTask;
if (authenticationToken == null)
{
throw new ArgumentNullException("authenticationToken");
}
if (string.IsNullOrEmpty(authenticationToken))
{
throw new ArgumentException(
string.Format(
CultureInfo.InvariantCulture,
"Error! Empty Argument: {0}",
"authenticationToken"));
}
var client = _clientFactory.GetClient();
var url = _serviceUrl + LoginAsyncUriFragment + "?mode=" + LoginAsyncAuthenticationTokenKey;
client.Headers[HttpRequestHeader.ContentType] = RequestJsonContentType;
var payload = new JObject();
payload[LoginAsyncAuthenticationTokenKey] = authenticationToken;
client.UploadStringCompleted += (x, args) =>
{
if (args.Error != null)
{
var ex = args.Error;
if (args.Error.InnerException != null)
{
ex = args.Error.InnerException;
}
continueWith(null, ex);
return;
}
var result = JObject.Parse(args.Result);
CurrentAuthToken = result["authenticationToken"].Value <string>();
CurrentUser =
new MobileServiceUser(result["user"]["userId"].Value <string>());
continueWith(CurrentUser, null);
};
//Go!
client.UploadStringAsync(new Uri(url), payload.ToString());
}
public void Logout()
{
CurrentUser = null;
CurrentAuthToken = null;
}
