//route for handling product edit view router.get('/edit/:id', upload.single('image'), async (request, response)=>{ let product = await Product.findById(request.params.id); response.render('edit', { product: product }); }); //route for handling product edit router.put('/:id', upload.single('image'), async (request, response)=>{ request.product = await Product.findByIdAndUpdate(request.params.id); let product = request.product; product.name = request.body.name; product.price = request.body.price; product.stock = request.body.stock; product.img = request.file.filename; try { product = await product.save(); //redirect to show route response.redirect(`/products/${product.slug}`); } catch (error) { console.log(error); response.redirect('/products/edit/${product.id}', { product: product }); } });

 (node:10876) UnhandledPromiseRejectionWarning: TypeError: Cannot read property 'filename' of undefined at E:\Program Files\Microsoft VS Code\Projects\Jannah Firdaus\jf-server\routes\products.js:76:32 at processTicksAndRejections (internal/process/task_queues.js:97:5)