serverside.js

module.exports=function(io){

io.on('connection',(socket)=>{
  console.log(socket.id)
  socket.on('joinRequest',(myRequest,callback)=>{
    console.log('server side join')
   socket.join(myRequest.sender);
    socket.join(myRequest.receiver);

    callback();
  });

  socket.on('friendRequest',(friend,callback)=>{
    console.log('Server check!');
    console.log('sender check:',friend.sender);
    console.log('receiver check:',friend.receiver);

     socket.to(friend.receiver).emit('newRequest',{

      from:friend.sender,
      to:friend.receiver
    }
  );

  console.log('new friend request sent');
  callback();
  });
});

}