tiennm99
376a7ae688
Deterministic frame-based confetti fired from the wheel center during the winner hold, seeded by winner index and colored from the theme palette. Uses Remotion's random() so each GIF frame renders identically.
wheelofnames
Self-hosted API that renders wheel-of-names GIF animations with Remotion.
API
POST /api/gif
Content-Type: application/json
Accept: image/gif
Authorization: Bearer change-me
{
"options": ["alice", "bob", "carol"],
"winnerIndex": 1,
"durationMs": 6500,
"holdMs": 1200,
"fps": 15,
"size": 512,
"theme": "classic"
}
Response is image/gif with winner metadata headers:
X-Wheel-Winner-IndexX-Wheel-WinnerX-Render-Duration-Ms
X-Wheel-Winner is URL-encoded so non-ASCII labels are safe in HTTP headers.
Local
Install dependencies and Chromium once:
pnpm install
pnpm browser:ensure
Start the local API:
pnpm dev
Generate GIF files locally
Generate the quick smoke fixture at the git-ignored path
fixtures/smoke.gif:
pnpm render:smoke
Generate the complete fixture set at fixtures/smoke.gif,
fixtures/vietnamese.gif, and fixtures/sixteen-options.gif:
pnpm render:fixtures
Render a custom GIF directly without starting the API server:
pnpm render:local -- `
--output wheel.gif `
--option "Chiều nay uống CraneTea" `
--option "Chiều nay uống CraneTea" `
--option "Cà phê" `
--winner 1
macOS, Linux, or Git Bash:
pnpm render:local -- \
--output wheel.gif \
--option "Chiều nay uống CraneTea" \
--option "Chiều nay uống CraneTea" \
--option "Cà phê" \
--winner 1
--winner is a zero-based index and is random when omitted. Run
pnpm render:local -- --help for duration, hold, FPS, size, theme, and timeout
options. The documented root wheel.gif and fixtures/*.gif outputs are
git-ignored and safe to delete; custom output paths may need their own ignore
rule.
Verify
Run the API smoke test and quality gates:
pnpm api:smoke
pnpm lint
pnpm typecheck
pnpm test
Deploy
Use a container runtime first. Static-only platforms cannot satisfy
POST /api/gif because Remotion server rendering needs Node, Chromium/runtime
dependencies, and FFmpeg/compositor support.
docker build -t wheelofnames .
docker run --rm -p 3000:3000 -e API_TOKEN=change-me wheelofnames
Recommended starting resources: 1-2 vCPU and 1-2 GB RAM, with
MAX_CONCURRENT_RENDERS=1. RENDER_TIMEOUT_MS defaults to 15000 and is
raised to Remotion's 7000ms browser timeout floor when configured lower.
API_TOKEN is required when NODE_ENV=production.