nodejs handle process.stdin incorrect

[image72]

Node.js read stdin synchronous

I tested above async read process.stdin.
in case code, echo 'hello world' | node stdin.js work correct.

but with websocketd --port 8058 ./mock3.js read std empty.

(async function () {
   const input = await readStdinSync();
  setInterval(() => {
    process.stdout.write(JSON.stringify({ now: +new Date(), text: data.trim() }) + '\n');
  }, (3000));
})()

[image72]

node -v
v18.17.0