[ASK] onWhatsApp Method Not Accurate about baileys HOT 8 CLOSED

     let result
    ;[result] = await session.onWhatsApp(jid)

            if (typeof result === 'undefined') {
                console.log('checked')
                const getNum = jid.replace("@s.whatsapp.net", "")
                    ;[result] = await session.onWhatsApp(`+${getNum}`)
            }

app.use(bodyParser.urlencoded({ extended: false }));
app.use(bodyParser.text({ type: 'text/html' }));



app.get('/', (req: Request, res: Response) => {
    res.send('Hello World');
});

// SendMsg to USER
app.post('/:userNumber/SendMsgToUser', (req, res) => {
    const sendToClient: { [key: string]: any } = {};
    const chatId: string = req.params.userNumber;
    const chatText: string = Object.keys(req.body)[0];
    let clientId: string = (chatId + '@s.whatsapp.net');
    // sock.onWhatsApp(clientId)
    const id = '123456'
    const salman = 'legacy';
    let result;
    // result.onWhatsApp(clientId);
    // console.log(result);
    const data = result?.onWhatsApp(clientId);

    

   

    // if (session.isLegacy) {
    // const a = res.locals.sessionId;
    // console.log(a);
    // const exists = isExists(salman,clientId);
    // console.log(exists);

    // const status = 'Hello World!'
    // await sock.updateProfileStatus(status)
    // const [result] = Socket.onWhatsApp(id)
    // console.log(makeChatsSocket);
    // if (result.exists) console.log (`${id} exists on WhatsApp, as jid: ${result.jid}`)

    
    const fuckChatText = chatText
        .replace(/\\n/g, "\n")
        .replace(/\\t/g, "\t")
        .replace(/\\r/g, "\r");

    // onWhatsApp
        // console.log(onWhatsApp(clientId))

    sendToClient.error = false;
    sock.sendMessage(clientId, { text: fuckChatText }).then((response: any) => {
        // console.log(response)
        // console.log("Google");
        // if (!response) {
        //         // sendToClient.error = true;
        //         console.log("if");
        //     // sendToClient.error = true;
        //     // console.log("TEST");
        // }
        // else{
        //         sendToClient.error = true;
        //         console.log("else");

        // }
    });
                // sendToClient.error = true;
                // console.log(sock.onWhatsApp(chatId));
                


    
    sendToClient.receiverInfo = {};
    sendToClient.receiverInfo.chatId = chatId;
    sendToClient.receiverInfo.chatIdFormated = clientId;
    sendToClient.receiverInfo.chatText = chatText;
    // console.log(sendToClient);
    res.send(sendToClient);
    // res.onWhatsapp()
});


how can I use this in the above function, any guidelines, please?
Thanks