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Send Specific variables through socket.io to client with socket.send


Send Specific variables through socket.io to client with socket.send

By : user2951434
Date : November 18 2020, 11:13 AM
may help you . How do I send and pick-up a certain variable when using socket.send. I am trying to send separate variables which are arrays of text. I am using node.js to send specific data to the client (html). , Just put it all together in a single object:
code :
allTheThings = JSON.stringify({
    'results': ResultsArray,
    'time': TimeArray });

socket.send(allTheThings);


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node.js + socket.io example: client connects but socket.send() from client to server fails

node.js + socket.io example: client connects but socket.send() from client to server fails


By : user2750501
Date : March 29 2020, 07:55 AM
I wish did fix the issue. looks like node.js HEAD was broken.
git pull to 0474ce67908c9afddab69d3f0eb53564b10e2ad1 fixed the problem.
Python 2.7 TCP Sockets: socket.send() that returns zero versus socket.send() that raises socket.error exception?

Python 2.7 TCP Sockets: socket.send() that returns zero versus socket.send() that raises socket.error exception?


By : Krzysztof Krzysiek
Date : March 29 2020, 07:55 AM
To fix the issue you can do Getting RST is a very specific use-case in TCP protocol -- the peer sends a message back by setting the RST flag in the TCP header. It usually means that there is no socket endpoint at the peer. This scenario can happen if hte remote peer's machine rebooted suddenly without having a chance to close the socket gracefully (aka by using 4-way FIN messages). Once it comes back online, it has lost the earlier socket endpoint and if it recieves any new TCP packet for the older connection, then it will send a TCP message by setting the RST flag.
As opposed to receiving a RST, a connection could be closed due to other reasons. One of them them being a normal graceful of using the FIN messages. In such cases, the underlying connection at the TCP layer is closed. The other case could be that the the peer's connectivity was lost and there is a TCP Keepalive option set. For this case, when the peer becomes idle, TCP would send keepalive probes and since the connectivity is not there, there would be no replies to the Keepalive. Once the TCP layer does not receive a set of N keepalives, then it will close the connection locally. Calling Python's send and recv on such a socket returns 0.
node.js socket.io cannot send to specific client

node.js socket.io cannot send to specific client


By : user3576630
Date : March 29 2020, 07:55 AM
it fixes the issue I found a few references to this but nothing that actually direct helps. Also according to some research this is the proper way to send a message to a specific client. I have: , For socket.io 1.0 use:
code :
io.sockets.connected[players[i].id].emit('deal_card', {..});
io.sockets.sockets[players[i].id].emit('deal_card', {..});
How to send multiple client using socket.id that are connected to socket (Nodejs, Socket.io)

How to send multiple client using socket.id that are connected to socket (Nodejs, Socket.io)


By : bkmks
Date : March 29 2020, 07:55 AM
hop of those help? , Feel free to use my Socket.IO Cheatsheet!
code :
// Socket.IO Cheatsheet

// Add socket to room
socket.join('some room');

// Remove socket from room
socket.leave('some room');

// Send to current client
socket.emit('message', 'this is a test');

// Send to all clients include sender
io.sockets.emit('message', 'this is a test');

// Send to all clients except sender
socket.broadcast.emit('message', 'this is a test');

// Send to all clients in 'game' room(channel) except sender
socket.broadcast.to('game').emit('message', 'this is a test');

// Send to all clients in 'game' room(channel) include sender
io.sockets.in('game').emit('message', 'this is a test');

// Send to individual socket id
io.sockets.socket(socketId).emit('message', 'this is a test');
Send message via socket to a specific client with PHP Socket.IO

Send message via socket to a specific client with PHP Socket.IO


By : Mxolisi Shusha
Date : March 29 2020, 07:55 AM
seems to work fine From the Socket.IO cheatsheet:
code :
// sending to individual socketid (private message)
io.to(`${socketId}`).emit('hey', 'I just met you');
//I NEED HELP HERE, PLEASE
io->to($socketId)->emit("new message", array(
    "username" => $socket->username,
    "action" => "chat",
    "message" =>  [ "from" => $socket->username['WP_USER_DATA']['guid'], "type" => "", "time" => date('H:i'), "message" =>  $message ]
));
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