public async Task VerifyTokenAsync()
{
if ((!string.IsNullOrEmpty(Settings.AuthToken)) && (!string.IsNullOrEmpty(Settings.UserId)))
{
try
{
var date = JwtUtility.GetTokenExpiration(Settings.AuthToken).Value.AddMinutes(-30);
if (!string.IsNullOrEmpty(Settings.AuthToken) && date < DateTime.UtcNow)
{
var result = await RegenerateTokenAsync();
if (!result)
{
//no token regenerated
await LogoutAsync();
}
}
}
catch (InvalidTokenException)
{
//Token exception error
await LogoutAsync();
}
}
}
void LoadCachedTokenAsync()
{
try
{
if (!string.IsNullOrEmpty(Settings.AuthToken) && JwtUtility.GetTokenExpiration(Settings.AuthToken) > DateTime.UtcNow)
{
MobileService.CurrentUser = new MobileServiceUser(Settings.UserId);
MobileService.CurrentUser.MobileServiceAuthenticationToken = Settings.AuthToken;
}
}
catch (InvalidTokenException)
{
Settings.AuthToken = string.Empty;
Settings.UserId = string.Empty;
Settings.Role = string.Empty;
}
}