C# generic function to execute any function, retrying if an exception is thrown

InvokeMethodWithRetries.cs

public static T InvokeMethodWithRetries<T>(Func<T> method, int maxNumberOfAttempts = 5)
{
	int numberOfAttempts = 0;
	while (numberOfAttempts < maxNumberOfAttempts)
	{ 
		try
		{
			return method.Invoke();
		}
		catch (Exception ex)
		{
			numberOfAttempts++;
			_log.Warn($"Attempt number '{numberOfAttempts}' failed. Exception: {ex}");

			if (numberOfAttempts >= maxNumberOfAttempts)
			{
				throw;
			}

			int numberOfSecondsToWait = numberOfAttempts * 5;
			_log.Debug($"Waiting '{numberOfSecondsToWait}' seconds before trying again.");
			System.Threading.Thread.Sleep(numberOfSecondsToWait * 1000);
		}
	}
	return default;
}

// Example of calling function.
// ReturnValue returnedValue = InvokeMethodWithRetries<ReturnValue>(() => GetSomeValue());