Files
Live_RC/package.json
larssand 3373f8dddd Protect live race results and shrink cross-browser staleness
Investigated whether two admin browsers open at once can overwrite each
other's changes, per an explicit request to report the risk before
making bigger changes. Found that POST /api/state always replaces the
entire stored document with a client's in-memory copy, with no version
check and no per-field merge - and a browser only ever pushes, never
re-fetching server state after page load except on the Overlay view.
An idle browser's next save, even an unrelated edit, could silently
revert another browser's more recent changes, worst case a live race's
in-progress results.

Two scoped fixes instead of the bigger optimistic-locking rework (that
needs real UX decisions about conflicting saves, deferred separately):

1. server.js now remembers which session results were just written by
   a real live decoder passing (/api/passings) and protects that key
   for 15 seconds against being reverted by a stale full-state save,
   while still applying the rest of that save normally.
2. Every non-Overlay view now quietly refreshes its data in the
   background every 15 seconds (skipped while a local edit is
   pending), without ever calling renderView(), so it can never
   discard an open, unsaved edit form - shrinking how stale a
   browser's next save can be from hours to seconds.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
2026-09-09 12:56:58 +02:00

34 lines
1.1 KiB
JSON

{
"name": "rc-racecore",
"version": "1.4.3",
"private": true,
"description": "RC RaceCore live timing and race control with AMMC ingest and SQLite persistence",
"engines": {
"node": ">=22 <27",
"npm": ">=10"
},
"allowScripts": {
"better-sqlite3": true
},
"scripts": {
"preinstall": "node scripts/preinstall.js",
"postinstall": "node scripts/verify-install.js",
"start": "node scripts/serverctl.js start",
"start:fg": "node server.js",
"stop": "node scripts/serverctl.js stop",
"status": "node scripts/serverctl.js status",
"restart": "node scripts/serverctl.js restart",
"verify": "node scripts/verify-install.js",
"backup:restore": "node scripts/restore-backup.js",
"audit:prod": "npm audit --omit=dev",
"test": "node --experimental-default-type=module tests/run.js",
"test:browser": "node --experimental-default-type=module tests/browser_smoke.js",
"setup:windows": "powershell -NoProfile -ExecutionPolicy Bypass -File windows/setup.ps1"
},
"dependencies": {
"better-sqlite3": "^12.11.1",
"express": "5.2.1",
"qrcode": "^1.5.4"
}
}