How can I send data though socket-io without the client requesting first with python and flask

Solution 1

import threading
from flask import Flask, render_template, session, copy_current_request_context,request
from flask_socketio import SocketIO, emit, disconnect
from threading import Lock
import time

async_mode = None
app = Flask(__name__)
app.config['SECRET_KEY'] = 'secret!'
socket_ = SocketIO(app, async_mode=async_mode)
thread = None
thread_lock = Lock()

def update():
    
    time.sleep(1)
    socket_.emit('my_response',
         {'data': time.time()},
        namespace='/test')
    print("emitted")
    update()
t=threading.Thread(target=update)



@socket_.on('connect', namespace='/test')
def handle_connect():
    print('Client connected')
   
    if not t.isAlive():
        t.start()


@app.route('/')
def index():
    
    return render_template('index.html', async_mode=socket_.async_mode)


socket_.run(app,port=8070)




    Socket-Test
    
    
    



    Socket

Solution 2

def update():
    while True:
        time.sleep(1)
        socket_.emit('my_response', {'data': time.time()}, namespace='/test')
        print("emitted")
t=threading.Thread(target=update)