@ServerRequestFilter with Uni<Void> signature hangs the request in resteasy reactive

[ichrist-gr]

Hello all,

I'm using resteasy reactive with all the jax-rs endpoints running on the event loop. In my case i have registered a request filter which checks a mongo database. In this filter, i need to have the request body available. To retrieve the request body, i use the io.vertx.core.http.HttpServerRequest and everything works fine if the filter is implemented with the classic jax-rs way(implements ContainerRequestFilter, @Provider, void filter(ContainerRequestContext) etc..).

But since i have a blocking action that takes place in my filter (access to mongodb), the jax-rs way filter aborts the processing and proceeds to the next filter. It is important to note here, that i can retrieve the request body and also the request to mongo is successful. It's only that i get a response from mongodb after 2 seconds and as a result the next filter is going to be executed.

So i tried the @ServerRequestFilter which returns Uni so that the execution inside the filter completes and then proceed to the next filter. But when i try to read the request body, the request hangs and never completes.

Finally, i tried to use the filter from reactive routes, but since this code will be included in inhouse libraries, some contextual objects from jax-rs are necessary (ResourceInfo, SecutrityContext etc).

Is there a viable solution to this problem?

Thank you very much