Chris Amow
8e50d5cbc2
Planning-only commit: no application code yet. The plan specifies a realtime /ES chart that derives moving averages and trendlines across multiple timeframes, projects them onto one chart in a shared (time, price) plane, and alerts when levels from different timeframes converge. Key findings that shaped it, all verified against source rather than assumed: - Schwab streams realtime futures fine (CHART_FUTURES, LEVEL_ONE_FUTURES) but provides no futures price *history* at all. An account does not change this; it is an API-surface limit. - Yahoo's chart endpoint needs no key and has exactly what Schwab lacks: ~730d of hourly ES=F (~750 sessions), enough to warm a 200DMA from startup. So it serves as both the no-keys dev source and the history seeder, behind one MarketDataSource protocol. - Yahoo anchors daily bars to midnight ET while the CME session runs 18:00-17:00 ET, so daily bars are built from hourly using our own session rules instead. - Lightweight Charts v5 replaced addCandlestickSeries() with addSeries(CandlestickSeries, ...); most tutorials online are v4. Build order defers judgment-heavy work: moving averages first (fully deterministic), then confluence scoring, then hand-drawn trendlines. Automatic trendline detection comes last, tuned against the hand-drawn lines as ground truth. Includes a real trimmed Yahoo response as a test fixture; it contains a null in the OHLC arrays, which is the parsing case that needs handling. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
2.2 KiB
chart
FastAPI backend + Vue 3 (from CDN, no build step) served at https://chart.amow.com.
Currently a placeholder: the frontend calls /api/hello and prints the JSON.
Where this is going: a realtime /ES chart that derives trendlines and moving
averages across many timeframes and alerts when they converge. The full spec lives in
docs/IMPLEMENTATION_PLAN.md — read it before writing
code; it records decisions and verified API facts that are expensive to rediscover.
Local development
docker compose up --build
Then open http://localhost:8000. Override the host port with
PORT=8010 docker compose up if 8000 is busy — on the VPS itself it always is,
that's the Coolify UI. The source tree is bind-mounted and uvicorn
runs with --reload, so edits to main.py or static/ take effect without a
rebuild. Rebuild only when requirements.txt changes.
Without Docker:
python3 -m venv .venv && . .venv/bin/activate
pip install -r requirements.txt
uvicorn main:app --reload
Layout
| Path | Purpose |
|---|---|
main.py |
FastAPI app — JSON under /api, serves the SPA at / |
static/ |
index.html, app.js, style.css — Vue 3 loaded from unpkg |
requirements.txt |
Python deps |
Procfile |
Start command; nixpacks needs this or the deploy has nothing to run |
Dockerfile.dev, docker-compose.yml |
Local dev only — production does not use them |
Deployment
Push to main → Forgejo webhook → Coolify rebuilds with nixpacks → live in
roughly 25 seconds.
git push
Two things to know before changing the deploy config:
- The Coolify domain is registered as
https://chart.amow.com:8000. The port suffix is how Coolify decides the Traefik target port; drop it and every request 502s while the container looks perfectly healthy. It does not appear in the public URL. - Ignore a 502 in the first minute after a deploy — that's the rolling container swap, and it clears on its own.
Manual redeploy:
curl -X POST -H "Authorization: Bearer $(cat ~/.coolify-token)" \
"http://127.0.0.1:8000/api/v1/deploy?uuid=dgvch0xqv8uvjfor7dl8bwl9&force=true"