Reactor-netty http status from publisher - reactor-netty

Question

I'm not exactly sure how to approach this,
The http response status depends on a body that I need to read.
So I have something like that:
private NettyOutbound handleRequest(HttpServerRequest req, HttpServerResponse res) {
Mono<String> body = req.receive().aggregate().asString(UTF_8);
...
return res.status(status)
.sendString(body, UTF_8);
}
private int status(String body) {
...
}
But to get the status I need read the body, I don't see any option to use a value from publisher there. How can I make it so I can call status method above and use that status when creating NettyOutbound

Answer 1

if I understand correctly, you are trying to implement route handler
I think the following should work
package hello;
import reactor.core.publisher.Mono;
import reactor.netty.DisposableServer;
import reactor.netty.http.server.HttpServer;
import reactor.netty.http.server.HttpServerRequest;
import reactor.netty.http.server.HttpServerResponse;
public class Application {
private Mono<Void> handleRequest(HttpServerRequest req, HttpServerResponse res) {
return req.receive().aggregate().asString().flatMap(body ->
{
int status = status(body);
return res.status(status).sendString(Mono.just(body)).then();
}
);
}
private int status(String body) {
return body.toLowerCase().equals("hello") ? 200 : 400;
}
public void startServer() {
DisposableServer server =
HttpServer.create()
.host("localhost")
.port(8080)
.route(routes -> routes.get("/hello", this::handleRequest))
.bindNow();
server.onDispose().block();
}
public static void main(String[] args) {
new Application().startServer();
}
}