CacheDirectives with stale-while-revalidate

[spadarthi]

HI All, Do we have any alternative for stale-while-revalidate for cache-control for using in API get image kind of responses!!

[pjfanning]

I can't find any evidence in code that pekko-http adds stale-while-revalidate. Can you provide some evidence?

[spadarthi]

I mean do we have any support for that? i like to use respondWithHeader(
Cache-Control(
CacheDirectives.max-age(86400), // 1 day
CacheDirectives.stale-while-revalidate(Option(3600)) // 1 hour
)
)

[pjfanning]

We don't seem to support it. Do you want to try creating a PR?

[pjfanning]

What seems to be supported - https://github.com/apache/pekko-http/blob/d1bedc7168c75c3727dc1a1573a5b3b7d2ce7dfe/http-core/src/main/scala/org/apache/pekko/http/scaladsl/model/headers/CacheDirective.scala