Jaxrs async marshaling feature reqeust

async_resolution.java

  
@Path("/{partner}/sync")
@Produces(MediaType.APPLICATION_JSON)
public class SyncResource {
    
    @PathParam("partner") String partner;
  
    @Inject SyncService syncService;

   /**
    * IMPLEMENTATION PROPOSAL
    */
    @GET
    @Path("{model}")
    public CompletableFuture<SyncStatus> asyncReqeust(@PathParam("model") String model) {
        return syncService.sync(model, partner)
          .exceptionally((Throwable e) -> 
                         Response.status(500).entity(SyncStatus.error(partner, "Sync successfully finished", e)).build()
          );
    }
  
    /**
     * CURRENT IMPLEMENTATION
     * Sync one collection
     *
     * @param model         model name
     * @param asyncResponse AsyncResponse
     */
    @GET
    @Path("{model}")
    public void syncOne(@PathParam("model") String model, @Suspended AsyncResponse asyncResponse) {
        registerTimeoutHandler(asyncResponse);
        syncService.sync(model, partner)
          .thenApply(data -> asyncResponse.resume(data))
          .exceptionally((Throwable e) -> {
                return asyncResponse.resume(
                    Response.status(500).entity(SyncStatus.error(partner, "Sync successfully finished", e)).build()
                );
          });
    }
}

Or it would be in case of global exception handler:

    @GET
    @Path("{model}")
    public CompletableFuture<SyncStatus> asyncReqeust(@PathParam("model") String model) {
        return syncService.sync(model, partner);
    }