/// <summary>
/// Performs unsubscribe request.
/// </summary>
/// <param name="subscribedUrls">The URLs to which the subscription has been made.</param>
/// <param name="callbackUrl">The subscriber's callback URL where unsubscribe intent can be verified.</param>
/// <param name="cancellationToken">The cancellation token to cancel operation.</param>
/// <returns>The task object representing the asynchronous operation. The result is true if hub has accepted the request, otherwise false.</returns>
public async Task <bool> UnsubscribeAsync(WebSubSubscribedUrls subscribedUrls, string callbackUrl, CancellationToken cancellationToken)
{
if (String.IsNullOrWhiteSpace(subscribedUrls.Topic))
{
throw new ArgumentNullException(nameof(subscribedUrls.Topic));
}
if (String.IsNullOrWhiteSpace(subscribedUrls.Hub))
{
throw new ArgumentNullException(nameof(subscribedUrls.Hub));
}
if (String.IsNullOrWhiteSpace(callbackUrl))
{
throw new ArgumentNullException(nameof(callbackUrl));
}
FormUrlEncodedContent unsubscribeRequestContent = PrepareUnsubscribeRequestContent(subscribedUrls.Topic, callbackUrl);
HttpResponseMessage hubResponse = await _httpClient.PostAsync(subscribedUrls.Hub, unsubscribeRequestContent, cancellationToken);
return(hubResponse.StatusCode == HttpStatusCode.Accepted);
}
/// <summary>
/// Performs unsubscribe request.
/// </summary>
/// <param name="subscribedUrls">The URLs to which the subscription has been made.</param>
/// <param name="callbackUrl">The subscriber's callback URL where unsubscribe intent can be verified.</param>
/// <returns>The task object representing the asynchronous operation. The result is true if hub has accepted the request, otherwise false.</returns>
public Task <bool> UnsubscribeAsync(WebSubSubscribedUrls subscribedUrls, string callbackUrl)
{
return(UnsubscribeAsync(subscribedUrls, callbackUrl, CancellationToken.None));
}
