How to access body in handler and keep it usable by vertx-http-proxy?

I'm trying to implement a reverse proxy in quarkus. It uses vert.x-http-proxy and needs to examine the body. According to this vert.x-http-proxy issue I know that vert.x-http-proxy does not support using BodyHandler but in fact every time I consume the body in my Interceptor, the proxy stuck or throw an already read exception. Any help appreciated.

    fun onStart(@Observes router: Router, vertx: Vertx) {
        val proxyClient: HttpClient = vertx.createHttpClient(HttpClientOptions().setTrustAll(false))

        val proxy: HttpProxy = HttpProxy.reverseProxy(proxyClient)
        proxy.origin(8888, "localhost").addInterceptor(myInterceptor)

        router
            .route()
            .path("/authorized/*")
            .handler(ProxyHandler.create(proxy))

Found this solution using Interceptor:

 override fun handleProxyRequest(context: ProxyContext): Future<ProxyResponse> {
        // Rewrite uri to remove useless part
        context.request().uri = context.request().uri.substringAfter("/authorize")

        val originalRequest = context.request().proxiedRequest()

        originalRequest.bodyHandler { requestBody ->
            //Do something with the body
            ...
        }
        // Continue the interception chain
        return context.sendRequest()
    }