The issue asked for two things and only one had been done. A well-formed but absent id already answered 404 — the PUT route carries a comment saying so. A malformed one still reached Postgres as text, raised 22P02 on an integer column, and surfaced through the route's catch as a 500, telling the admin the server had broken when the truth is that no such item can exist. That half is now closed everywhere rather than on the three routes that happened to have it.
Guarded: DELETE an item, DELETE an image, unpublish, and every route in adminItemDrafts — publish, regenerate, discard, restore, and the two background-removal endpoints added by #281. The last of those were flagged in that feature's own final review as sharing this pre-existing shape, so they are fixed with the rest rather than left to be found again.
Routes carrying two ids guard both. A route can guard the first and forget the second, and the forgotten one fails exactly as loudly, so there is a case each way for both image endpoints and for DELETE image.
DELETE deliberately still answers 204 for a well-formed id that is absent. The method is idempotent and the caller's intent, that the item should not exist, is satisfied either way; what must not happen is a 500. There is a test pinning that so the distinction is a decision rather than an omission.
Also replaced the raw req.params.id and Number(req.params.id) uses that sat inside routes which had already computed a validated id. They were safe, because the guard above them made them safe, but a validated id and a raw one side by side in the same handler is how this bug comes back.
The test block named "a non-numeric id on every admin item route" covered two routes. It now covers every route that takes an id, which is what makes its name true.
Closes#207
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Three routes in admin.ts answered a miss with a success. PUT /items/:id ran an UPDATE that matched nothing, committed happily, selected nothing back and replied 200 with an empty body — a success the admin client could do nothing with, and no record anywhere that the item was not found. mark-sold and mark-available did the same. The create route beside them has always used requireRow for exactly this, which is why this reads as an oversight rather than a decision.
A garbage id was worse in a different direction. Number('abc') is NaN, the driver sends it to Postgres as the text "NaN", Postgres raises 22P02 for an integer column, and the catch turned that into a 500 — so a caller asking for an item that cannot exist was told the server broke. Both now answer 404, because from the caller's side "/items/abc" identifies no item in exactly the way "/items/999999" does.
readId is shared rather than repeated, and rejects zero, negatives and fractions as well as text: every id in this schema is a positive serial, so anything else identifies nothing.
mark-sold now notifies favouriters only after the row is known to exist, so nobody is told about a sale that did not happen.
The issue asked for the same shape to be checked across the other admin routes. It was: unpublish already looks the item up and 404s, and the tags and categories PUT routes both do an existence check before their UPDATE, so their rows[0] is guaranteed. items.ts already guards the public read. These three were the only ones lying about a miss.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
bermudalambandClaude Opus 5