https://stackoverflow.com/questions/1563191/cleanest-way-to-write-retry-logic

retry.cs

public async Task DoWithRetryAsync(Func<Task> action, TimeSpan sleepPeriod, int tryCount = 3)
{
    if (tryCount <= 0)
        throw new ArgumentOutOfRangeException(nameof(tryCount));

    while (true) {
        try {
            await action();
            return; // success!
        } catch {
            if (--tryCount == 0)
                throw;
            await Task.Delay(sleepPeriod);
        }
   }
}

usage.cs

await DoWithRetryAsync(DoSomethingAsync, TimeSpan.FromSeconds(2), tryCount: 10);