@cgsmith Pushed some latest changes - master...feature/stripe-billing-and-invoicing Docs are updated. // FYI

I'm going to finish the webhooks implementation and the {payment/subscription management} via the customer portal.

I added logic for working with Stripe webhooks, but, since we already have similar logic for Shopify, it would be great to combine some parts. I've created #177 for this. Once, these two branches are merged, I will implement this.

• Updated SubscriptionService
• Implemented the logic with subscription history
• Removed some other Stripe logic and values
• Upgraded StripeCheckoutSessionCompletedJob

Working on:

• Changes for the /subscription page based on the changes for subscription history (active subscription is stored here)
• Catching changes on Stripe's subscription side
• Subscription cancel webhook

@cgsmith

• Implemented the /subscription page (screenshot below)
• Implemented the ability to get the latest invoice (screenshot below)
• Added the ability to use the Customer Portal (screenshot below)

Working on:

• Cancel subscription using the Customer Portal
• Different switches: from trial to active, pause/resume, failed payment, etc. It's a bit time-consuming to handle these states)

Thanks @bohdan-vorona let me review what you currently have. I think you might be adding more of a direct integration instead of leveraging their customer portal.

No problem if you did!

Check - Stripe (webhooks + Dashboard):

• Trial period starts (by user)
• Trial period ends (automatically)
• Cancel trial period (by user)
• Switching from trial period to "real" subscription
• Cancel "real" subscription (by user)
• Unpaid "real" subscription (by user)
• "Real" subscription update (by user)
• Dashboard -> Delete customer
• Dashboard -> Delete customer -> Delete subscription via webhook -> Delete subscription on the website
• Dashboard -> Delete subscription -> Delete subscription via webhook -> Delete subscription on the website
• Dashboard -> Update subscription -> Update subscription via webhook -> Update subscription on the website
• Dashboard -> Add subscription -> Add subscription via webhook -> Add subscription on the website
• Change plan from monthly to yearly or yearly-monthly
• per unit

Check - website:

• Pricing table subscription
• Invoice
• Customer portal
• Cron -> Make inactive past-due subscriptions

@cgsmith In general, I've finished the main part of Stripe integration. Implemented the following webhooks: customer.deleted, checkout.session.completed, customer.subscription.created, customer.subscription.trial_will_end, customer.subscription.deleted, customer.subscription.updated.

I'm working on usage-based measurement.

Some moments I need help with:

1. For the moment, to get the current customer I use this mock code:

$customer = Customer::findOne(1); // I find the first customer
$subscriptionService = new SubscriptionService($customer);

How shall I determine the current customer? As I see, in the User model we have such code:

    public function getCustomerId()
    {
        return $this->customer_id;
    }

But also, as I see, one user can have several customers:

    public function getCustomerIds()
    {
        return ArrayHelper::getColumn(
            $this->hasMany('frontend\models\UserCustomer', ['user_id' => 'id'])
                ->select('customer_id')
                ->asArray()
                ->all(),
            'customer_id');
    }

So, shall I use the field customer_id from the user table or ...?

2. There was old billing logic I used:

        if (!Yii::$app->session->has($module->switchIdentitySessionKey) &&
            !Yii::$app->user->identity->isAdmin &&
            Yii::$app->user->identity->isDirectCustomer()) {
                // code...
        }

I left all these checks for my logic too. Is it correct? It means that I will check the current active subscription only if it's not an admin and is a direct customer and it's not switching between users.

3. Please have a look at the screenshots below. Let me know if you want something to change or add.

I can propose not showing our header and footer when the user sees the pricing widget. Just add a neat button Back + Logo or something like that.

Menu:

Subscription page:

Active trial:

Active subscription:

Thx for subscribing:

Redirect if no active subscription:

Stripe qty usage: