Is mirroring Stripe (Subscriptions, Invoices, Coupons...) in your own local database efficient?

Is mirroring Stripe with your own local database is a good thing?

Mirroring using both API calls (create a new plan, coupon, subscription, etc.) and webhooks (new invoice or charge generated, payment failed.) so you can store all data (literally have similar tables with columns matching the stripe objects) locally and work with it faster.

If not, what data do you save locally and what do you request?

Thank you.

via Chebli Mohamed