Polly policyretry resultcondition and exception wrapper c#

Question

Wrapper around Polly Framework so that implementation can stay at a single place

I am able to create a wrapper based on the above link . but i am not sure how can i make this as generic . I want to have this wrapper for more than result bool check such as handling exception too.

Here is my code:

public class RetryWrapper
{
    public static bool Execute(Func<bool> func)
    {
        RetryPolicy<bool> retryPolicyNeedsTrueResponse =
            Policy.HandleResult<bool>(b => b != true)
                .WaitAndRetry(new[]
                {
                        TimeSpan.FromSeconds(5),
                        TimeSpan.FromSeconds(10),
                        TimeSpan.FromSeconds(15)
                });
        return retryPolicyNeedsTrueResponse.Execute(func);
    }
}

Any help is much appreciated. Thanks in advance

Answer 1

To make it generic, I guess you could do something like this

public static T Execute<T>(Func<T> func, Func<T,bool> success)
{
    RetryPolicy<T> retryPolicyNeedsTrueResponse =
            Policy.HandleResult<T>(b => success(T))
                .WaitAndRetry(new[]
                {
                    TimeSpan.FromSeconds(5),
                    TimeSpan.FromSeconds(10),
                    TimeSpan.FromSeconds(15)
                });
    return retryPolicyNeedsTrueResponse.Execute(func);
}

_{Note : the benefit of this seems to be iffy and suspect at best, also you would need another version for async}.

You could probably just get away with an array of timespan, reuse that, and let your code be more declarative and adaptable to all the other features of polly.

_{Note 2 : This is completely untested}.