Vert.x 2中的WebSocket服务器（转换为Vert.x 3）？

I'm doing a client / server Websocket. The client is in JavaScript I already have it and the Server is in Vert.x (Java), which is where I have the doubts, because I found a code in Vert.x 2 and I would like someone to help me convert it to Vert .x 3I'm doing a client / server Websocket. The clie