Is there a way to set DeltaBackoff for RetryExponential policy in .NET Core ServiceBus client?

Question

It seems that .NET Standard Azure ServiceBus client library doesn't have exposed possibility to set DeltaBackoff parameter. It was possible before, based on documentation it should be still possible. I see there is an internal constructor which is chained to the public one and value for DeltaBackoff is passed from Constants.DefaultRetryDeltaBackoff (3 seconds).

Is there a valid reason to not expose that anymore? Also, is there a way to achieve exponential retries using SubscriptionClient with 2/4/8 minutes delay without setting DeltaBackoff?

Darjan Bogdan · Accepted Answer · 2019-11-14T17:44:30.177

Couldn't find the other way than using reflection to instantiate RetryExponential via its internal constructor:

var internalCtor = typeof(RetryExponential)
    .GetConstructors(BindingFlags.NonPublic | BindingFlags.Instance)
    .Single();

var instance = (RetryExponential)internalCtor.Invoke(
    new object[] { TimeSpan.FromMinutes(2), TimeSpan.FromMinutes(8), TimeSpan.FromMinutes(2), 3 }
    );

Console.WriteLine(instance.DeltaBackoff); // 00:02:00

Here is the issue on the repository, if someone wants to track it.

Is there a way to set DeltaBackoff for RetryExponential policy in .NET Core ServiceBus client?

1 Answers1