saving data in apify actor

bambawRouter.addHandler('BAMBAW_PRODUCT', async ({ page, request }) => {
    try {
        console.log('Scraping products');

        const site = 'Bambaw';

        const title = await page.$eval('h1.product__title', (el) => el.textContent?.trim() || '');

        const descriptions = await ......

        const productData = {
        url: request.loadedUrl,
        site,
        title,
        descriptions,
        originalPrice,
        salePrice,
        shippingInfo,
        reviewScore,
        reviewNumber,
        };

        productList.push(productData);

        console.log('Scraped ', productList.length, ' products')
        // Read the existing data from the rawData.json file
        let rawData: any = {};
        try {
            const rawDataStr = fs.readFileSync('rawData.json', 'utf8');
            rawData = JSON.parse(rawDataStr);
        } catch (error) {
            console.log('Error reading rawData.json:', error);
        }

        // Append the new data to the existing data
        if (rawData.productList) {
            rawData.productList.push(productData);
        } else {
            rawData.productList = [productData];
        }

        // Write the updated data back to the rawData.json file
        fs.writeFileSync('rawData.json', JSON.stringify(rawData, null, 2));
        console.log('rawData.json updated for Bambaw');
    } catch (error) {
        console.log('Error scraping product:', error);
        bambawQueue.reclaimRequest(request);
        return;
    }    

await Actor.pushData(productData);