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ericremoreynolds/client.html

Last active February 25, 2024 21:55
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Flask-socket.io emit to specific clients
Raw
client.html
<html>
<body>
<h1>I feel lonely</h1>
<script type="text/javascript" src="//code.jquery.com/jquery-2.1.3.min.js"></script>
<script type="text/javascript" src="//cdnjs.cloudflare.com/ajax/libs/socket.io/0.9.16/socket.io.min.js"></script>
<script type="text/javascript" charset="utf-8">
var socket = io.connect('http://' + document.domain + ':' + location.port);
socket.on('connect', function() {
socket.emit('connected');
});
socket.on('message', function(data) {
$('h1').text(data)
});
</script>
</body>
</html>
Raw
server.py
from flask import Flask, request
from flask.ext.socketio import SocketIO
app = Flask(__name__, static_folder='')
io = SocketIO(app)
clients = []
@app.route('/')
def index():
return app.send_static_file('client.html')
@io.on('connected')
def connected():
print "%s connected" % (request.namespace.socket.sessid)
clients.append(request.namespace)
@io.on('disconnect')
def disconnect():
print "%s disconnected" % (request.namespace.socket.sessid)
clients.remove(request.namespace)
def hello_to_random_client():
import random
from datetime import datetime
if clients:
k = random.randint(0, len(clients)-1)
print "Saying hello to %s" % (clients[k].socket.sessid)
clients[k].emit('message', "Hello at %s" % (datetime.now()))
if __name__ == '__main__':
import thread, time
thread.start_new_thread(lambda: io.run(app), ())
while True:
time.sleep(1)
hello_to_random_client()
@charles-dr
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I tried this and works for me:

io.emit('message', "Hello at %s" % (datetime.now()), room=clients[k])

This clients[k] is the ID of the conection... On cliente is socket.id and in the server is request.sid (This one you need to import from flask import request)

I dont tried if puttin an array in room will send to all clients in there...

Thanks, @juniordnts.
The above code worked for me finally, and here is my code.
Hope it helps others save time.

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