Cart

Podcast 2 — In conversation

Speaker A: I left a full cart online and the site emailed me like I’d abandoned a puppy.

Speaker B: Marketing loves an abandoned cart — you, less so. Clear cookies if it haunts you.

Speaker A: In the shop they say trolley; online it’s always cart.

Speaker B: British English splits hairs — supermarket trolley, golf cart, horse cart. American English leans on cart for more of them.

Speaker A: Sentence: Security carted the broken display away before anyone tripped.

Speaker B: Good — verb, physical, brisk.

Speaker A: Synonym — basket?

Speaker B: Online, basket and cart overlap; cart often implies line items and tax logic. Basket can sound softer in British retail copy.

Speaker A: Buggy?

Speaker B: Regional — sweet in the American South, confusing in a London superstore.

Speaker A: Mistake to avoid?

Speaker B: Do not pluralise your table shopping_carts as cart’s — looks like a greengrocer’s typo. And do not call a wheelchair a cart; respect the user term.

Speaker A: Right — language with manners.

Speaker B: Exactly — wheels optional, empathy compulsory.

Podcast 3 — Prompt engineering

Speaker B: In prompts, cart is your commerce primitive. Say it early so the model wires routes, state, and persistence consistently.

Speaker A: So naming matters more than pretty buttons?

Speaker B: Both — but names stop hallucinated endpoints. Navigation first:

Prompt: Design a sticky top navigation for a tea shop with Shop, Bundles, and Cart links. The Cart badge must show live item count from client state and update on add-to-cart without full reload. Use the word cart in component names like CartBadge.tsx. Specify focus order and keyboard shortcut G then C to open cart drawer on desktop.

Speaker B: Cart in identifiers anchors Redux slices and API paths — fewer fake /basket routes.

Speaker A: Side panel for checkout review?

Speaker B: Glass drawer pattern:

Prompt: Build a right-hand slide-over cart summary panel listing SKU, quantity, line total, and remove controls. Persist cart to localStorage with schema version one. If cart is empty, show illustration copy that still uses the word cart in the heading. Announce panel open to screen readers with role dialog and focus trap.

Speaker A: Feels like a real sprint ticket.

Speaker B: Schema next — relational integrity:

Prompt: Model Postgres tables users, products, carts, and cart_items with foreign keys and unique open cart per user. Add indexes on cart_items.cart_id and explain how partial unique indexes prevent duplicate rows. Migration filenames must include cart_schema. Seed three products and one sample cart for integration tests.

Speaker A: Would items alone be enough?

Speaker B: Without carts you lose checkout lifecycle — the word buys you the container entity.

Speaker B: HR swag store — fringe benefit:

Prompt: Scaffold an internal HR merch portal where staff redeem points for hoodies. Implement cart merge if they log in mid-session. Use cart_id in JWT claims documentation. Provide Cypress tests that add two sizes, open cart, adjust quantity, and assert cart total matches server quote endpoint.

Speaker A: Accounting angle?

Speaker B: Deferred revenue loves a held basket:

Prompt: Create a finance dashboard widget comparing placed orders versus open carts valued over two hundred pounds. Use Chart.js bar pairs labelled Cart value and Paid value. Export CSV must include columns date, cart_id, cart_total, and tax_band. Flag carts older than fourteen days for manual review.

Speaker A: Greenfield storefront?

Speaker B: Tight stack, cart-centred domain language:

Prompt: Generate a Next.js fourteen app with App Router: product grid, cart provider using React context, and Stripe checkout session created from server action reading cart snapshot. README must define cart as domain term and list environment variables NEXT_PUBLIC_CART_TTL. No external UI kit; Tailwind only.

Speaker A: CI messages — anything cute?

Speaker B: Keep bots sober:

Prompt: Write GitHub Actions annotations when cart integration tests fail. Messages must reference cart fixture data explicitly and never joke about shoppers. Include a Markdown job summary listing failed cart scenarios with file paths. Provide a JSON artifact upload step named cart-test-report.json for later dashboards.

Speaker A: So cart is the spine of the commerce story.

Speaker B: Yes — say it aloud and the stack stops guessing.