Could not find MessageBodyWriter for response object of type: io.vertx.reactivex.core.buffer.Buffer of media type: text/html;charset=UTF-8
I was trying to use freemarker with quarkus and vertx. I start getting this error Could not find MessageBodyWriter for response object of type: io.vertx.reactivex.core.buffer.Buffer of media type: text/html;charset=UTF-8 And code look like below. I was trying to use reactive approach. @GET @Produces(MediaType.TEXT_HTML) public Uni<Object> doSomethingAsync() throws Exception { io.vertx.core.Vertx params = vertx.getDelegate(); io.vertx.reactivex.core.Vertx args = new io.vertx.reactivex.core.Vertx(params); FreeMarkerTemplateEngine engine = FreeMarkerTemplateEngine.create(args); List<ExampleObject> exs = new ArrayList<>(); for (int i = 0; i < 10; i++) { exs.add(new ExampleObject("name:" + i, "dev:" + i)); } HashMap data = new HashMap<>(); data.put("title", "Vert.x Web"); data.put("exampleObject", new ExampleObject("name", "dev")); data.put("systems", exs); Single<Buffer> rxRender = engine.rxRender(data, "/templates/index.htm"); Buffer page = null; try { page = rxRender.toFuture().get(); } catch (Exception ex) { ex.printStackTrace(); // e.printStacktrace(); } return Uni.createFrom().item(page); } I check and could not find a proper solution here is how I solved it. ...