Node.js exposing information from python script to ngrok for a get request

So im trying to get info i get from my python script exposed on a tunnel i made using ngrok but for some reason i cant seem to make it appear on the set route anyone who knows why ? it writes to the output file but i tried consol logging it nothing works and i try to understand why the text from the output is not being stored and updated on the tunnel

const express = require('express');
const { spawn } = require('child_process');
const fs = require('fs');

const app = express();
const port = 4000;

let lastDeliveryMessage = '';

app.use(express.json());

app.post('/execute-script', async (req, res) => {
    try {
        const { naam } = req.body;

        // Ensure naam is provided
        if (!naam) {
            return res.status(400).json({ success: false, message: 'No naam provided' });
        }

        // Execute the Python script
        await executeScript(naam);

        // Wait a bit before reading the file to ensure that the Python script has completed writing
        await new Promise(resolve => setTimeout(resolve, 30000)); // Wait for 1 second

        // Read the delivery message from output.txt
        const deliveryMessage = readDeliveryMessage();
        console.log('Read delivery message:', deliveryMessage);

        // Check if a valid message was retrieved
        if (!deliveryMessage) {
            return res.status(500).json({ success: false, message: 'No delivery message received from script' });
        }

        lastDeliveryMessage = deliveryMessage;

        res.json({ deliveryMessage });
    } catch (error) {
        console.error('An error occurred during script execution:', error);
        res.status(500).json({ success: false, message: 'Script execution failed', error: error.message });
    }
});


const executeScript = (naam) => {
    return new Promise((resolve, reject) => {
        const pythonProcess = spawn('python', ['C:\\Users\\Dell\\Desktop\\levertijdside\\levertijd.py', naam]);

        pythonProcess.on('error', (error) => {
            console.error('An error occurred during script execution:', error);
            reject(error);
        });

        pythonProcess.on('close', (code) => {
            if (code === 0) {
                resolve();
            } else {
                reject(new Error(`Script execution failed with error code ${code}`));
            }
        });
    });
};

app.get('/get-delivery-message', (req, res) => {
    if (lastDeliveryMessage) {
        res.json({ message: lastDeliveryMessage });
    } else {
        res.status(404).json({ message: 'No last delivery message available' });
    }
});

app.listen(port, () => {
    console.log(`Server is running on port ${port}`);
});



const readDeliveryMessage = () => {
    const filePath = 'C:\\Users\\Dell\\Desktop\\levertijdside\\output.txt';
    try {
        if (fs.existsSync(filePath)) {
            console.log('Reading from:', filePath);
            const deliveryMessage = fs.readFileSync(filePath, 'utf8');
            console.log('Delivery message:', deliveryMessage);
            return deliveryMessage.trim();
        } else {
            console.log(`File does not exist at: ${filePath}`);
            return null;
        }
    } catch (error) {
        console.error('An error occurred while reading the delivery message:', error);
        return null;
    }
};

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