Hi, Edwin. I'm in the process of integrating Stripe to https://iko.ai https://iko.ai. I recently discovered Portal (https://stripe.com/docs/billing/subscription

Hi, Edwin. I'm in the process of integrating Stripe to https://iko.ai https://iko.ai. I recently discovered Portal (https://stripe.com/docs/billing/subscriptions/integrating-customer-portal https://stripe.com/docs/billing/subscriptions/integrating-cu...) and I thank you for that. Less code for me. I'm a bit ashamed to say, but I'm having trouble with checking if the customer has a valid subscription. I'm currently only storing the customer_id in the database and retrieving the information from Stripe to have it as a single source of truth and avoiding putting the Stripe info in our database and having to make sure it's synced. On the other hand, I can't make a request to Stripe with every request, so I'm thinking of memoization or something. I could find guides on how to accept payments and create subscriptions which are trivial, but no examples on what happens after that. Suppose I have an API with a single endpoint and set up a subscription for a customer, how do I not hit the Stripe API with every request to check if the subscription is still alive without storing customer info in my database and having to sync it (i.e: keep everything in Stripe)?