C# 6 feature for retrying a task nth times.

TaskWithRetry.cs

public static async Task WithRetry(Func<Task> action, int retryCount = 3)
{
    var retries = 0;

    while(true)
    {
        try
        {
            await action().ConfigureAwait(false);
            return;
        }
        catch when (retries++ <= retryCount)
        {
            // Back off for a while.
            await Task.Delay(1000).ConfigureAwait(false);
        }
    }
}

Source: https://twitter.com/Nick_Craver/status/739420321686650880