[Question]Can withBackoff and withDelay be used at the same time?

[ripley]

[Question]Can withBackoff and withDelay be used at the same time?

[Tembrel]

You can't use both withDelay and withBackoff in the same RetryPolicy, since they use the same configuration fields internally.

But you can use a backoff delay in conjunction with a computed delay, e.g., (uncompiled, untested):

RetryPolicy retryPolicy = RetryPolicy.builder()
    // other stuff
    .withBackoff(...)
    .withDelayFn(context -> is429OrOtherSpecial(context) ? computeCustomDelay(context) : -1)
    .build();

I'm basing that idea on this Javadoc:

A negative return value will cause Failsafe to use a configured fixed or backoff delay

[ripley]

Thanks @Tembrel 👍 This works as expected.