demo · v131
TCPServerSocket: listen on a local port
An IWA can listen for incoming TCP connections via TCPServerSocket. The classic use is a local control panel for hardware (printer queue managers, lab instruments, kiosk daemons) where the web app is itself the server. This page wires up the listener and renders each connection as a tile.
flags + scheme
TCPServerSocket is IWA-only with the direct-sockets permission. On a regular origin the constructor is missing — the page degrades gracefully.
connections
no clients yet
server log
the api
const server = new TCPServerSocket("0.0.0.0", { localPort: 9100 });
const { readable } = await server.opened;
const reader = readable.getReader();
while (true) {
const { value: conn, done } = await reader.read();
if (done) break;
handleConnection(conn);
}
async function handleConnection(sock) {
const { readable, writable } = await sock.opened;
// ... echo loop ...
}