Django channels + Postgresql: Real-Time Database Messaging

Question

I am currently developing an app with Django and PostgreSQL. Often, new information is sent to database (sometimes one time a day, sometimes over 30000 times a day). I have an UI (vue.js) and I want to see the data from the database showing to the client in real time.

Currently I am using Django Channels. I implemented websocket and used psycopg2 library to listen to notifications from postgresql triggers. My consumer looks like this:

class WSConsumer(WebsocketConsumer):
    def connect(self):
        self.accept()
        
        #the whole table is sent to the client after the connection
        self.send(json.dumps(ClientSerializer(Client.objects.all(), many=True).data)) 

        #connecting to database
        conn = psycopg2.connect(dbname='...', user='...') 
        conn.set_isolation_level(psycopg2.extensions.ISOLATION_LEVEL_AUTOCOMMIT)
        curs = conn.cursor()
        curs.execute("LISTEN update_clients_table;")

        #then I listen to any new data in this table and send it to the client
        while True:
            if select.select([conn],[],[],5) == ([],[],[]):
                print("Timeout")
            else:
                conn.poll()
                while conn.notifies:
                    notify = conn.notifies.pop(0)
                    print("Got NOTIFY:", notify.pid, notify.channel, notify.payload)
                    message = notify.payload
                    self.send(message)

    def disconnect(self):
        self.close()

This is an example of handling changes in 1 table. I have 20 tables in total, and around 100 clients that can connect to the websocket.

My question: is it a good way of building real-time app with Django and PostgreSQL? Is it simple, convenient, secure? Are there other ways to build such an app?

Thanks in advance!