Summary

This chapter focused on the implementation of a payment infrastructure into a web application using the Stripe API. It provided instructions on how to set up a Stripe account, create API keys, and configure the payment settings. You saw the importance of selecting the appropriate business strategy, such as subscription or one-time payment, before implementing payment options. You also saw how to track user visits and usage using a SQL database and how to create payment plans on a payment page. Additionally, the chapter outlined the functions required to retrieve and update the usage counter and described how to implement them to track a user’s payment status.

You learned how to build the charge() function, which handles the payment process when a user selects a pricing plan and submits their payment information. We covered the use of the Stripe API to create a new customer and charge object and render the charge.html template to display a confirmation message to the...