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app.js
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48 lines (38 loc) · 1.23 KB
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const express = require("express");
const app = express();
const http = require("http").Server(app);
const io = require("socket.io")(http);
const port = process.env.PORT || 3000;
app.use(express.static("public"));
http.listen(port, () => console.log("app started"));
io.on("connection", (socket) => {
console.log("user connected");
socket.on("create or join", (room) => {
console.log("create or join room", room);
room = room.trim();
const myRoom = io.sockets.adapter.rooms.get(room) || { size: 0 };
const numClients = myRoom.size;
console.log(room, "has", numClients, "clients");
if (numClients === 0) {
socket.join(room);
socket.emit(`created`, room);
} else if (numClients === 1) {
socket.join(room);
socket.emit(`joined`, room);
} else {
socket.emit(`full`, room);
}
});
socket.on("ready", (room) => {
socket.broadcast.to(room).emit("ready");
});
socket.on("candidate", (event) => {
socket.broadcast.to(event.room).emit("candidate", event);
});
socket.on("offer", (event) => {
socket.broadcast.to(event.room).emit("offer", event.sdp);
});
socket.on("answer", (event) => {
socket.broadcast.to(event.room).emit("answer", event.sdp);
});
});