serverino_test/stest/source/app.d

import std;

// Docs: https://trikko.github.io/serverino/
// Tips and tricks: https://github.com/trikko/serverino/wiki/
// Examples: https://github.com/trikko/serverino/tree/master/examples
import serverino;

mixin ServerinoMain;

// Accept a new connection only if the request path is "/echo"
@onWebSocketUpgrade bool onUpgrade(Request req){
  return req.path == "/echo";
}

// Handle the WebSocket connection
@endpoint void echo(Request r, WebSocket ws){
  // Read messages from the client
  while(true){
    // Only if the message is valid
    if( WebSocketMessage msg = ws.receiveMessage() ){
      // Send the message back to the client
      ws.send("I received your message: `" ~ msg.asString ~ "`");
    }
  }
}

@route!"/"
@endpoint void index(Request r, Output o){ o.serveFile("static/index.html"); }

@route!"/style.css"
@endpoint void css(Request r, Output o){ o.serveFile("static/style.css"); }