// http://www.tugberkugurlu.com/archive/efficiently-streaming-large-http-responses-with-httpclient
protected async Task DownloadToStream(string path, Stream target)
{
using (var pool = new HttpClientPool())
{
try
{
var client = pool.NewClient();
var result = await client.GetAsync(new Uri(ChainEndPoint, path), HttpCompletionOption.ResponseHeadersRead);
result.EnsureSuccessStatusCode();
using (var source = await result.Content.ReadAsStreamAsync())
{
await source.CopyToAsync(target);
return;
}
throw new DownloadInvalidContentTypeException(ChainEndPoint, path);
}
catch (TaskCanceledException)
{
throw new DownloadTimeoutException(ChainEndPoint, path);
}
catch (Exception)
{
throw new DownloadNotFoundException(ChainEndPoint, path);
}
}
}
protected async Task <string> DownloadText(string path, bool checkMediaType = true)
{
using (var pool = new HttpClientPool())
{
try
{
var client = pool.NewClient();
var result = await client.GetAsync(new Uri(ChainEndPoint, path));
result.EnsureSuccessStatusCode();
if (!checkMediaType || result.Content.Headers.ContentType.MediaType == "text/plain")
{
return(await result.Content.ReadAsStringAsync());
}
throw new DownloadInvalidContentTypeException(ChainEndPoint, path);
}
catch (TaskCanceledException)
{
throw new DownloadTimeoutException(ChainEndPoint, path);
}
catch (Exception)
{
throw new DownloadNotFoundException(ChainEndPoint, path);
}
}
}
protected async Task <byte[]> DownloadBinary(string path, bool checkMediaType = true)
{
using (var pool = new HttpClientPool())
{
try
{
var client = pool.NewClient();
var uri = new Uri(ChainEndPoint, path);
var result = await client.GetAsync(uri);
result.EnsureSuccessStatusCode();
if (!checkMediaType || result.Content.Headers.ContentType.MediaType == "application/octet-stream")
{
return(await result.Content.ReadAsByteArrayAsync());
}
throw new DownloadInvalidContentTypeException(ChainEndPoint, path);
}
catch (TaskCanceledException)
{
throw new DownloadTimeoutException(ChainEndPoint, path);
}
catch (Exception)
{
throw new DownloadNotFoundException(ChainEndPoint, path);
}
}
}