Dynamic configuration for retryConfig

Resilience4j version: 1.5.0

Java version: 11

Thanks for raising a Resilience4j issue. Is there a way to dynamically update the interval function for the retry module.

Use case : I want to perform retries based on the RETRY_AFTER for my http requests. Currently the only way to configure retry is by pre-configuring an IntervalFunction on the retryConfig.

I have configured the resultPredicate to look for the header to retry but I would want to retry based on the time specified in the header field. I was wondering if there is a way to configure the RetryConfig for this scenario.

[cosminseceleanu]

Sounds good to me, I also prefer a single function.

[RobWin]

Sry for the late response.

Let’s say we have two functions: intervalFunctionOnResult and intervalFunctionOnException.

• If a result must be retried, either intervalFunctionOnResult or as a fallback interfalFunction is used.
• If an exception must be retried, either intervalFunctionOnException or as a fallback interfalFunction is used.

But a single intervalBiFunction might allow to track/store in-memory which exceptions or results have occured and increase the timeout interval depending on the state / history.

This is more difficult if we have two functions. I think because of this I prefer a single function.

interface IntervalBiFunction<T> extends BiFunction<Integer, Either<Exception, T>, Long>

What do you think?