hubs_stripe_backend.js

const express = require("express");
const app = express();
const fs = require('fs');
const fetch = require('node-fetch');

const tokenFile = './.ret.credentials'
const token = JSON.parse(fs.readFileSync(tokenFile, 'utf8')).token;
const accountURL = 'https://myhubsURL.com/api/v1/accounts'

app.use(express.json())

var customers = {}

// should discard anything not matching
// https://stripe.com/docs/webhooks/signatures https://stripe.com/docs/ips
app.post("/stripe-webhook", (req, res) => {
  event = req.body
  switch (event.type) {
    case 'checkout.session.completed':
      var email = customers[event.data.object.customer].email
      var name = customers[event.data.object.customer].name
      console.log('creating account for', email, name, 'via the account API')
      registerHubsAccountFromEmail(email, name)
      break;
    case 'payment_intent.succeeded':
      const paymentIntent = event.data.object;
      if (typeof customers[paymentIntent.customer] === "undefined") customers[paymentIntent.customer] = {}
      if (paymentIntent && paymentIntent.charges && paymentIntent.charges.data && paymentIntent.charges.data.length)
        customers[paymentIntent.customer].receipt_url = paymentIntent.charges.data[0].receipt_url
      console.log('payment succeeded!')
      // Then define and call a method to handle the successful payment intent.
      // handlePaymentIntentSucceeded(paymentIntent);
      break;
    case 'payment_method.attached':
      const paymentMethod = event.data.object;
      //console.log('paymentMethod', paymentMethod)
      customers[paymentMethod.customer] = {}
      customers[paymentMethod.customer].email = paymentMethod.billing_details.email
      customers[paymentMethod.customer].name = paymentMethod.billing_details.name

      // Then define and call a method to handle the successful attachment of a PaymentMethod.
      // handlePaymentMethodAttached(paymentMethod);
      break;
    // ... handle other event types
    default:
      // Unexpected event type
      return res.status(400).end();
  }
  // Return a response to acknowledge receipt of the event
  res.json({received: true});
});


app.listen(20002, () => {
  console.log("Hubs Stripe microservice running on port 20002");
});

function registerHubsAccountFromEmail(email, name){
        console.log('requesting account creation for', email)
        fetch(accountURL, {
                method: 'POST',
                headers: {
                        'Content-Type': 'application/json',
                        'Accept': 'application/json',
                        'Authorization': 'bearer ' + token
                },
                body: JSON.stringify( {"data": [{ "email": email, "name": name } ] })
        }).then(reply => {
                console.log('success');
                console.log(reply);
        }).catch(err => {
                console.log('error');
                console.log(err);
        });
}

Hello. It's very interesting, thank you.
I can't see for now how this can be integrated in a hubs shop but I need to learn a little more about it .
I'm really into building a full Hubs shop with "buy inside" experience.

I have an answer from camelgold who did a fork and explained me how this works :)

Glad you found a solution via @camelgod's fork! Just to clarify this is to interface Stripe with Hubs for payment but it's done prior to an in-VR experience. To do purchases while being in-VR I suggest to use in-app currency or token linked to the user account and the stripe payment. I'm very skeptical about in VR payment requiring to input credit card information. It might be feasible but a pretty challenging UX.

Thank you. Yes, i understand it's maybe not the best solution to try to do in-app full payment, due to security problems. We prefer to let stripe taking care of that.
I think we will focus on the shopping experience where you can browse, get information about the product, meet and chat with other visitors and of course, chat with the shop owner.
We even maybe don't need a token or in-app currency ? Just a cart with information and total.
I think we can imagine having some data in gtlf objects like price and options for the cart.
The payment can be made after, back to a standard ecommerce cart. Maybe just plug it to a shopify API.

So, even with external payment, there's already enough to work on :)

I don't know if such a project could be interesting for others to start on discord ?

Well the information per item and per cart means tracking prices and amounts so in the end it can be thought of as an in-game token or currency.

Yes Discord would be good since I know quite a few others are interested about monetization in VR.

Thank you :)
We WILL have our hubs shop experience :) It's the right time !