using socket io to emit to send data code example
Example 1: socket emit to specific room using nodejs socket.io
io.on('connection', socket => { socket.on('say to someone', (id, msg) => { socket.to(id).emit('my message', msg); });});Example 2: socket emit to specific room using nodejs socket.io
io.to('room1').to('room2').to('room3').emit('some event');