/// <summary>
/// Obtains an access and refresh tokens by authorization code.
/// </summary>
/// <returns><see cref=NdRefreshTokenResponse> instance.</returns>
public NdRefreshTokenResponse ObtainTokensByCode()
{
var code = GetAuthorizationCodeAsync().ConfigureAwait(false)
.GetAwaiter()
.GetResult();
var tokens = oAuth.ObtainTokensByCode(code,
VALID_REDIRECT_URI,
clientData.GetClientId(),
clientData.GetClientSecret(clientData.GetClientId()))
.ToResultOrException();
clientData.SaveTokens(tokens, clientData.GetClientId());
return(tokens);
}
