How can I send a message to a particular client with socket io

Question

Starting with socket.io + node.js, I know how to send a message locally and to broadcast socket.broadcast.emit() function:- all the connected clients receive the same message.

Now, I would like to know how to send a private message to a particular client, I mean one socket for a private chat between 2 person

Answer 1

Hii,

You can try the code below:

io.to(socket.id).emit("event", data);

whenever a user joined to the server, socket details will be generated including ID. This is the ID really helps to send a message to particular people.

First we need to store all the socket.ids in array,

var people={};

people[name] =  socket.id;

here name is the receiver name. 

Example:

people["ccccc"]=2387423cjhgfwerwer23;

So, now we can get that socket.id with the receiver name whenever we are sending message for this we need to know the receivername.

Hope this work!!

Thank You!!