private void AddFileDataContent(MultipartFormDataContent form, string fullFileName, [CallerMemberName] string callerName = "")
{
fullFileName.NullInspect(nameof(fullFileName));
var fileType = TelegramMethodAttribute.GetFileTypeValue(this.GetType(), callerName);
Debug.Assert(!string.IsNullOrEmpty(fileType),
$"Use {nameof(TelegramMethodAttribute)} to avoid error.");
if (!Path.HasExtension(fullFileName))
{
form.Add(new StringContent(fullFileName, Encoding.UTF8), fileType);
return;
}
try
{ //can't use using here, because these streams are necessary open
var fileStream = new FileStream(fullFileName, FileMode.Open, FileAccess.Read);
form.Add(new StreamContent(fileStream), fileType, Path.GetFileName(fullFileName));
}
catch (Exception ex)
{
throw new TelegramMethodsException($"Something wrong with the file {fullFileName}", ex);
}
}
private async Task <string> UploadMultipartFormDataContent(HttpContent content, [CallerMemberName] string callerName = "")
{
var telegramMethodName = TelegramMethodAttribute.GetMethodNameValue(this.GetType(), callerName);
Debug.Assert(!string.IsNullOrEmpty(telegramMethodName),
$"Use {nameof(TelegramMethodAttribute)} to avoid error.");
try
{
using (var httpClient = new HttpClient())
{
var response =
await httpClient.PostAsync(TelegramBotUrl + Token + "/" + telegramMethodName, content).ConfigureAwait(false);
return(await response.Content.ReadAsStringAsync().ConfigureAwait(false));
}
}
catch (HttpRequestException ex)
{
throw new TelegramMethodsException(
"Bad http request, wrong parameters or something. See inner exception.", ex);
}
}
