How to save stripe webhook response on mysql - mysql

Question

I am using flutter as a client-side and using the firebase extension to get the checkout URL for payment purposes.
This is working fine but I want to save the webhook response data on my MySQL db. The stripe webhook sends data on each event and I want to store each event response on my DB by which I will filter the data from there.
I am using node js as the backend but I don't have much knowledge of nodejs.
I followed the stripe nodejs documentation from which I am triggering the events
and this is the documentation code -
// server.js
//
// Use this sample code to handle webhook events in your integration.
//
// 1) Paste this code into a new file (server.js)
//
// 2) Install dependencies
// npm install stripe
// npm install express
//
// 3) Run the server on http://localhost:4242
// node server.js
const stripe = require('stripe');
const express = require('express');
const app = express();
// This is your Stripe CLI webhook secret for testing your endpoint locally.
const endpointSecret = "whsec_a86c898114804f99965ae4a14a7a93731a4c0bdffa506fa3d24d73ac89dd56f3";
app.post('/webhook', express.raw({type: 'application/json'}), (request, response) => {
const sig = request.headers['stripe-signature'];
let event;
try {
event = stripe.webhooks.constructEvent(request.body, sig, endpointSecret);
} catch (err) {
response.status(400).send(`Webhook Error: ${err.message}`);
return;
}
// Handle the event
switch (event.type) {
case 'checkout.session.async_payment_failed':
const session = event.data.object;
// Then define and call a function to handle the event checkout.session.async_payment_failed
break;
case 'checkout.session.async_payment_succeeded':
const session = event.data.object;
// Then define and call a function to handle the event checkout.session.async_payment_succeeded
break;
case 'payment_intent.created':
const paymentIntent = event.data.object;
// Then define and call a function to handle the event payment_intent.created
break;
case 'payment_intent.processing':
const paymentIntent = event.data.object;
// Then define and call a function to handle the event payment_intent.processing
break;
// ... handle other event types
default:
console.log(`Unhandled event type ${event.type}`);
}
// Return a 200 response to acknowledge receipt of the event
response.send();
});
app.listen(4242, () => console.log('Running on port 4242'));
now, how can I connect MySQL on each switch case and save the data on my mysql db.
(note - I dont have pior knowledge of nodejs and mysql I have just read the documentation and following everything)