.NET lightweight library for download operations offering download statistics/metrics and events while downloading.
Install package from Nuget by running the following command.
Package Manager Console
Install-Package Download.Client.NET CLI
dotnet add package Download.ClientThen go ahead import the library in your target class.
using Neon.Downloader;Initialize a new instance of download client where you can optionally set the maximum size per download in the constructor, the default is 1GB.
IDownloader _downloader = new DownloaderClient();
_downloader.DownloadTrace += (string trace) => // trace event logs
_downloader.OnDownloadStart += (DownloadMetric metric) => // indicates that download has started
_downloader.DownloadCompleted += (DownloadMetric metric, Stream stream) => // last metric with downloaded stream
_downloader.OnError += (Exception ex) => // when an error occurs
_downloader.Download("http://example.com/video.mp4");A time-series representation metric object that defines the state of a download operation/activity either before, during download, or after the download completes.
This is how each download metric looks like
public struct DownloadMetric
{
/// <summary>
/// Checks whether the time measurement/calculation unit is seconds
/// or milliseconds.
///
/// Returns <see cref="true"/> if it's using seconds
/// and <see cref="false"/> if it uses milliseconds.
/// </summary>
public bool TimeInSeconds { get; }
/// <summary>
/// Received/Downloaded Bytes. (d)
/// </summary>
public long DownloadedBytes { get; set; }
/// <summary>
/// Total Bytes to download. (b)
/// </summary>
public long TotalBytes { get; set; }
/// <summary>
/// Download progress percentage. (p)
///
/// <code>
/// = (d / b) * 100;
/// </code>
/// </summary>
public double Progress { get; }
/// <summary>
/// Remaining Bytes to complete download. (r)
///
/// <code>
/// = (b - d);
/// </code>
/// </summary>
public long RemainingBytes { get; }
/// <summary>
/// Checks if the download is complete by looking at the size
/// of remaining/pending bytes.
/// </summary>
public bool IsComplete { get; }
/// <summary>
/// Elapsed time at the current moment. (t)
/// </summary>
public TimeSpan ElapsedTime { get; set; }
/// <summary>
/// Download speed. (s)
///
/// <code>
/// = (d / t);
/// </code>.
///
/// The result is in (bytes/sec) or (bytes/ms) depending on the unit
/// chosen for representing time.
/// </summary>
public double Speed { get; }
/// <summary>
/// Expiration or time remaining for download to complete. (e)
///
/// <code>
/// = (r / s);
/// </code>
/// </summary>
public TimeSpan TimeRemaining { get; }
}