[undertow-dev] HttpServerExchange post data

I can't figure out how to get the content of post data My server start Undertow.builder() .addHttpListener(8080, "0.0.0.0") .setHandler(Handlers.routing().post("/bid", new BidHandler())) .build() .start(); And the handler class public final class BidHandler implements HttpHandler { @Override public void handleRequest(final HttpServerExchange exchange) throws Exception { ........ } } If I make a curl request like so curl -H "Content-Type: application/json" -X POST -i -d '{"some": "value"}' http://127.0.0.1:8080/bid It gets to the handler, but I can't figure out to access the post data from the request Thanks