Isky
17e88b4e46
Two new domain skills for amazon.com derived from a logged-in session: - cart.md: documents the empty-cart trap where `[data-asin]` selectors match recommendation widgets even on an empty cart, plus the stable subtotal selectors and the price-change banner format. - orders.md: covers the order-list card structure, the order-search quirk (the `?search=` URL param doesn't filter — must submit the form or hit the post-submit `/your-orders/search/` URL), and the tracking page (whose `data-test-id` selectors are all null — extract from `body.innerText` anchored on the "Arriving" line).
2.2 KiB
Amazon — Shopping Cart
Field-tested against amazon.com on 2026-04-22 using a logged-in Chrome session.
URL
https://www.amazon.com/gp/cart/view.html
Empty-cart trap
Do not use [data-asin] to detect whether the cart has items. The cart page renders an "Items you may like" recommendation strip and other widgets that also carry data-asin attributes — a naive scrape returns 8–12 ASINs even on a fully empty cart.
Check the empty-state string first:
empty = js("""
document.body.innerText.includes('Your Amazon Cart is empty')
""")
If empty is true, stop — do not enumerate items.
Subtotal
When the cart has items, the active subtotal lives at:
#sc-subtotal-amount-activecart (or) #sc-subtotal-amount-buybox
These elements are absent from the DOM entirely on an empty cart (not just empty-string). A null here is consistent with the empty-state check above; do not treat it as "subtotal hidden."
Price-change banners
Amazon renders an "Important messages about items in your Cart" panel above the cart contents whenever a watched item's price has moved (up or down). The panel includes Saved-for-later items, not just active cart items. The text format is stable:
... has increased from $X to $Y
... has decreased from $X to $Y
These are worth surfacing to the user on every cart visit — they are not redundant with the cart contents themselves.
Saved for later
The "Saved for later" section is on the same URL as the cart, rendered below the active cart. Item count is shown as Saved for later (N items) in the section header. For a user with many saved items this can be hundreds — do not assume the section is small.
Gotchas
[data-asin]≠ cart contents. Recommendations and "Items you may like" carrydata-asintoo. Always anchor cart-item scrapes inside[data-name="Active Items"](or check the empty string first), never on the bare attribute.- Subtotal selectors are absent, not empty, when the cart is empty.
querySelector(...)returnsnull, which is the correct signal. - The page is logged-in only. If a non-cart "Sign in to see your cart" page appears, treat as auth wall and stop.