INNER CODE UNIT · JavaScript

server

koolkishan/chat-app-react-nodejs · server/index.js:32

const server = app.listen(process.env.PORT, () =>
  console.log(`Server started on ${process.env.PORT}`)
);
const io = socket(server, {
  cors: {
    origin: "http://localhost:3000",
    credentials: true,
  },
});

global.onlineUsers = new Map();
io.on("connection", (socket) => {
  global.chatSocket = socket;
  socket.on("add-user", (userId) => {
    onlineUsers.set(userId, socket.id);
  });

  socket.on("send-msg", (data) => {

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