I've been at this for weeks and have reviewed several different (1) questions (2) on stack around retrieving the customer ID during the stripe checkout process (node / mongoose). Neither question--despite having answers--seem to solve the issue for either the original askers or myself, so giving it another try...

During the signup flow, I'm pushing the user to a stripe portal using stripe's create-checkout-session after the user has created a profile in my database.

I'd then like to take the stripe customer_id and save it to the database so I can monitor the customer's subscription status since I cannot figure out webhooks (I'm a new-ish/intermediate programmer and am conceptually struggling with grasping webhooks).

Create checkout controller function (pushes users to the stripe portal for checkout)

 module.exports.createCheckoutSession = async (req, res) => {
     if (req.isAuthenticated()) {
         try {
             const session = await stripe.checkout.sessions.create({
                 mode: "subscription",
                 line_items: [
                     {
                         price: priceId,
                         quantity: 1,
                     },
                 ],

                 // ?session_id={CHECKOUT_SESSION_ID} means the redirect will have the session ID set as a query param
                 success_url: `${webUrl}/users/${req.user._id}/activations/?session_id={CHECKOUT_SESSION_ID}`,
                 // success_url: `/users/${req.body._id}`,
                 cancel_url: `${webUrl}/canceled.html`,
                 // automatic_tax: { enabled: true }
 
             });
             console.log("customer ID ", session.customer_id);
             console.log("query params ", req.query);
             console.log("req params ", req.params);
             console.log("session", session);
             return res.redirect(303, session.url);

         } catch (e) {
             res.status(400);
             return res.send({
                 error: {
                     message: e.message,
                 }
             });
         }
     }
     req.flash('error', "You must login before changing billing");
     res.render('/login');
 }

My function redirects the user to my 'activations' page as the success url which is where I'm trying to capture the customer_id after it's been created in stripe's checkout but I can't find it. Keeping a lot of the other code out of my activations function, below is how I'm looking for the customer_id:

Activations

module.exports.showActivations = async (req, res) => {
    ...
    console.log("req params ", req.params);
    console.log("req headers ", req.headers)
    console.log("session ", session);
    res.render('users/activations', { activeEvents, qr, qrAgg });
    ...
    }
};

Output of my console.logs

• Req.params only has the user_id from my app when they hit my database to signup (prior to going to the stripe portal)

• Req.headers has some cookies but nothing from stripe

• Session returns 'ReferenceError: session is not defined'

How do I get the customer_id from stripe during the checkout so I can monitor the subscription status?

CodePudding user response：

You can take a different approach by creating the Customer beforehand, then pass its ID into the Checkout Session creation request. You can then save both the Customer Id and the Checkout Session ID into your DB. See Stripe Doc.

But down in the road, you will still need Webhook to fulfill order from Checkout. It will give you everything attached to a successful Checkout Session, after your customer paid for it.