Is it normal for socket.io to keep logging?

E

Elvis2020-03-27 14:35:00

Python

Elvis, 2020-03-27 14:35:00

Hello!
It's normal that in the console (while on the test) there are constantly lines like

127.0.0.1 - - [27/Mar/2020 14:29:24] "POST /socket.io/?EIO=3&transport=polling&t=N4RmFef&sid=2865bf99d0d240a5b459595b2e925f2d HTTP/1.1" 200 -
127.0.0.1 - - [27/Mar/2020 14:29:41] "POST /socket.io/?EIO=3&transport=polling&t=N4RmJma&sid=2865bf99d0d240a5b459595b2e925f2d HTTP/1.1" 200 -
127.0.0.1 - - [27/Mar/2020 14:29:41] "GET /socket.io/?EIO=3&transport=polling&t=N4RmBIi&sid=2865bf99d0d240a5b459595b2e925f2d HTTP/1.1" 200 -

is it for connection support? Or is there some sort of permanent reconnection going on?
In the browser (I use the same socket.io) there are also requests-responses all the time

. Another question regarding the screen above: Why does the type contain xhr, and not ws?

For example, here is a simple server-client
Server:

from flask import Flask, render_template
from flask_socketio import SocketIO, emit
    
app = Flask(__name__)
app.config['SECRET_KEY'] = 'secret!'
socketio = SocketIO(app, cors_allowed_origins="*")

@app.route('/')
def index():
    return 'HI!'

@socketio.on('myevent')
def test_message(message):
    emit('myresponse', {'data': 'got it!'})

if __name__ == '__main__':
    socketio.run(app, port=5555)

Customer

<htmL>
    <head>
        <script src="sio.js"></script>
        <script>
            var socket = io.connect('http://localhost:5555');
            socket.on('connect', function() {
                console.log('Websocket connected!');
            });
            var lab = {'id': 'HI!HI!HI!HI!'};
            socket.emit('myevent', lab);
        </script>
    </head>
    <body>
        <p>HI!!!</p>
    </body>
</htmL>

sio.js is a downloaded socket.io
As a result, websocket does not connect, only Poling. however, the data is transmitted

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2 answer(s)

E

Elvis, 2020-03-27
@Dr_Elvis

Solved a problem
pip install gevent gevent-websocket

D

Dr. Bacon, 2020-03-27
@bacon

Because it is not ws, socket.io could not create it (well, or it was configured that way) and emulates through polling