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denoland-deno/examples/ws.ts
2019-03-04 19:53:35 -05:00

39 lines
1.2 KiB
TypeScript

// Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
import { serve } from "https://deno.land/x/http/mod.ts";
import {
acceptWebSocket,
isWebSocketCloseEvent,
isWebSocketPingEvent
} from "https://deno.land/x/ws/mod.ts";
async function main(): Promise<void> {
console.log("websocket server is running on 0.0.0.0:8080");
for await (const req of serve("0.0.0.0:8080")) {
if (req.url === "/ws") {
(async () => {
const sock = await acceptWebSocket(req);
console.log("socket connected!");
for await (const ev of sock.receive()) {
if (typeof ev === "string") {
// text message
console.log("ws:Text", ev);
await sock.send(ev);
} else if (ev instanceof Uint8Array) {
// binary message
console.log("ws:Binary", ev);
} else if (isWebSocketPingEvent(ev)) {
const [, body] = ev;
// ping
console.log("ws:Ping", body);
} else if (isWebSocketCloseEvent(ev)) {
// close
const { code, reason } = ev;
console.log("ws:Close", code, reason);
}
}
})();
}
}
}
main();