Nexmo send SMS

gistfile1.cs

public async Task SendSms(string phoneNumber, string body)
{
  // Sanitize the phone number.
  phoneNumber = Regex.Replace(phoneNumber, "[^0-9]", string.Empty);

  // Build the request.
  var builder = new UriBuilder("https://rest.nexmo.com/sms/json");
  var parameters = new Dictionary<string, string>
   {
     { "api_key", this.apiKey },
     { "api_secret", this.apiSecret },
     { "from", this.smsSenderName },
     { "to", phoneNumber },
     { "text", body }
   };
  builder.Query = string.Join("&", parameters.Select(_ => string.Format("{0}={1}", HttpUtility.UrlEncode(_.Key), HttpUtility.UrlEncode(_.Value))));

  // Send the request and log the result.
  var request = builder.Uri;
  var result = await this.webClient.DownloadStringTaskAsync(request);
  this.log.Info("{0} -> {1}", request, result);
}