Stripe Checkout Session for custom products

Stripe is a payment processor known for its ease of implementation due to its extensive documentation and code samples. Their quick start guide allows users to select their front-end and back-end languages and copy/paste samples for simple transactions. However, the guide assumes users will set up inventory on Stripe's platform. The standard checkout_session object requires a valid Price ID defined on Stripe's platform. If users want to maintain their own inventory, they can use an alternative method by defining a product with a price_data dictionary. This dictionary includes currency, product data, and unit amount. A complete checkout session object using this method includes the price_data dictionary and quantity. This approach allows users to leverage Stripe's payment processing while maintaining their own inventory. A more scalable approach would be to populate the line_items list with values from the user's own inventory database. By using this method, users can maintain control over their inventory while still using Stripe for payment processing.