Chatting app on flask(one to one implementation)

Question

I am trying to build a flask app in which users can chat in group as well as each other. in order to implement this i am using flaskSocketio. I am able to broadcast my message but how can i do one to one chat....between different users I have database of users registered to me.......

@app.route("/chat/") def chatting(): return render_template('chatHome.html') @socketio.on('message') def handleMessage(msg): send(msg, broadcast=True, include_self=False) if __name__ == '__main__': socketio.run(app, host='0.0.0.0', port=(int)(os.environ.get('PORT', 7001)), debug=True) <script type="text/javascript"> $(document).ready(function() { var socket = io.connect(); socket.on('message', function(msg) { $("#messages").append('<p style="padding: 10px; background-color: hotpink; overflow: auto;">'+msg+'</p>'); console.log('Received message'); }); $('#sendbutton').on('click', function() { socket.send($('#myMessage').val()); $("#rightsend").append('<p style="padding: 10px; background-color: #2aabd2; overflow: auto;">'+($('#myMessage').val())+'</p>'); $('#myMessage').val(''); }); $("#myMessage").keyup(function(event){ if(event.keyCode == 13){ $("#sendbutton").click(); } }); }); </script>

Here is an example project that uses Flask and Flask-SocketIO to create a simple chat service. github.com/miguelgrinberg/Flask-SocketIO-Chat There's also a blog post that explains how it works, blog.miguelgrinberg.com/post/… — blakev
– blakev, Commented Oct 6, 2017 at 21:46

Miguel Grinberg · Accepted Answer · 2017-10-06 23:50:50Z

Each user gets assigned a session ID or sid when they connect. You can access the sid assigned to a client as request.sid in any event handler for that client. What people typically do is associate the sid given to a client to the actual user in the connect event handler.

Once you have a way to find the sid currently associated with a user, the server can send a message just to that user by adding a room=sid argument to the emit() call.

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