How To Code Well

139 - Shopping carts are hard

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Changelog

  • No live stream tonight, My internet has been super patchy today so I’m not even going to try.
  • Unfortunately no PHP 8 short this week. It has been recorded, I just haven’t had the chance to upload and do the thumbnail yet.
  • We documented the 7th lesson of the new PHP course. This included some TDD, some array nesting and some PHP 8 array shapes

    • Shopping carts are hard

    A shopping cart needs to be frictional-less to the end user (Customer). The quicker a customer can purchase a product the better.

    There are many questions that need to be answered when designing the user flow of a shopping cart

    These are just some things to think about:

    Shipping

    • Will you be shipping a physical good and if so will the shipping cost be dependent on user location?
    • Will shipping be based on the item(s) weight?
    • Will shipping be discounted in certain regions?
    • Will you require shipping information to make a payment (Security checks)?
    • Will there be discounted shipping based on quantity?
    • Will there be a quantity limit based on different regions?

      • Currency

      • What currency will you be offering?
      • What is the conversion rate?
      • How will you track that?
      • What are the tax implications for you versus the customer?
      • How are you going to calculate tax?

        • Users

        • Will you require an actual user to login before and order is created?
        • Can someone make a guest account?
        • Will there be teams or individual accounts?
        • Will you require the customer to be verified before making a purchase. Some places like Stripe require a user email address?

          • Product

          • Is it a digital good?
          • Will there be stock?
          • How will the stock be recorded/monitored?
          • How will an out of stock product be displayed?
          • Can products be bundled?
          • Do bundled products get a discount?
          • How are products removed from the cart?
          • How are products updated on the cart?
          • How are quantities updated on the cart?

            • Checkout

            • What happens when a logged out user access the checkout page?
            • What happens to abandoned carts?
            • What defines an abandoned cart?
            • At what point does the cart get created in the database?
            • At what point does the cart get associated with the user?

              • Other items to consider

              • Refunds
              • Subscriptions
              • Cancelations
                • ...more
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                How To Code WellBy Peter Fisher
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