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import { createServer } from "node:http";
import { WebSocketServer } from "ws";
const server = createServer();
const wss = new WebSocketServer({
perMessageDeflate: false,
noServer: true,
});
server.on("listening", () => {
const { address, port, family } = server.address();
const { href } = new URL(family === "IPv6" ? `ws://[${address}]:${port}` : `ws://${address}:${port}`);
console.log(href);
console.error("Listening:", href);
});
server.on("request", (request, response) => {
console.error("Received request:", { ...request.headers });
response.end();
});
server.on("clientError", (error, socket) => {
console.error("Received client error:", error);
socket.end();
});
server.on("error", error => {
console.error("Received error:", error);
});
server.on("upgrade", (request, socket, head) => {
console.error("Received upgrade:", { ...request.headers });
socket.on("data", data => {
console.error("Received bytes:", data);
});
wss.handleUpgrade(request, socket, head, ws => {
wss.emit("connection", ws, request);
});
});
wss.on("connection", (ws, request) => {
console.error("Received connection:", request.socket.remoteAddress);
ws.on("message", message => {
console.error("Received message:", message);
ws.send(message);
if (message === "ping") {
console.error("Sending ping");
ws.ping();
} else if (message === "pong") {
console.error("Sending pong");
ws.pong();
} else if (message === "close") {
console.error("Sending close");
ws.close();
} else if (message === "terminate") {
console.error("Sending terminate");
ws.terminate();
}
});
ws.on("ping", data => {
console.error("Received ping:", data);
ws.ping(data);
});
ws.on("pong", data => {
console.error("Received pong:", data);
ws.pong(data);
});
ws.on("close", (code, reason) => {
console.error("Received close:", code, reason);
});
ws.on("error", error => {
console.error("Received error:", error);
});
});
server.on("close", () => {
console.error("Server closed");
});
process.on("exit", exitCode => {
console.error("Server exited:", exitCode);
});
const hostname = process.env.HOST || "127.0.0.1";
const port = parseInt(process.env.PORT) || 0;
server.listen(port, hostname);
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