Geopolitical and Macro Analyst for the upcoming big crisis of 2026 https://read.markets
Find a file
Giorgio Gilestro 6c13f855e9 polar: build /api/polar/webhook handler
Standalone router for inbound Polar (merchant-of-record) deliveries.
No bearer-token dep — authenticity comes from the Standard Webhooks
HMAC instead. Wired up so it's safe to deploy dark: empty
POLAR_WEBHOOK_SECRET makes the endpoint return 503 (loud) rather than
accept unsigned events.

Behaviour
- Standard Webhooks signature verification: HMAC-SHA256 over
  `{webhook-id}.{webhook-timestamp}.{body}`, base64 secret prefixed
  whsec_, ±5min replay window, constant-time compare against any of
  the space-separated v1 tokens.
- Idempotency via UNIQUE on polar_events.event_id — a replayed
  webhook-id short-circuits to 200 "duplicate" without re-running.
- Event dispatch table covers the 10 events we subscribed to:
  subscription.{created,active,updated,uncanceled} -> tier=paid +
  persist polar_customer_id / polar_subscription_id.
  subscription.revoked -> tier=free (customer id kept so a resub
  matches the same User row).
  canceled / past_due / order.* / refund.created -> audit only.
- Unknown event types are acked 200 + recorded; we don't want to 4xx
  on something Polar adds in the future and trigger their retry loop.

Schema (migration 0018)
- users.polar_customer_id, users.polar_subscription_id (both nullable
  String(64)); UNIQUE on polar_customer_id so two users can't claim
  the same Polar identity.
- polar_events table: event_id (unique), event_type, received_at,
  processed_at, error, raw payload (truncated to 16 KiB).

Tests
- 7 in tests/test_polar_webhook.py: bad signature -> 401, stale
  timestamp -> 401, missing headers -> 400, subscription.active flips
  tier to paid + stores IDs, subscription.revoked drops to free while
  keeping customer link, replayed webhook-id is no-op, unknown event
  is acked.
- Full suite: 212 passed, 5 skipped.

Operator next steps before saving the webhook in Polar
1. Pull this branch to prod and apply migration 0018.
2. Save the webhook in Polar pointing at
   https://read.markets/api/polar/webhook — Polar will accept the
   save even though our endpoint still 503s (no secret yet).
3. Copy the secret Polar reveals into the prod .env as
   POLAR_WEBHOOK_SECRET=whsec_... and restart the app.
4. Trigger a test event from Polar's dashboard to confirm 200 OK.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-26 17:42:41 +02:00
alembic polar: build /api/polar/webhook handler 2026-05-26 17:42:41 +02:00
app polar: build /api/polar/webhook handler 2026-05-26 17:42:41 +02:00
config add ECB Data Portal source; group-aware stale thresholds 2026-05-15 23:13:58 +01:00
docs/superpowers docs: implementation plan for beta + paid-gap rollout 2026-05-25 18:28:39 +02:00
tasks phase G: data minimisation + passwordless auth + DeepSeek-first LLM 2026-05-18 14:16:57 +01:00
tests polar: build /api/polar/webhook handler 2026-05-26 17:42:41 +02:00
.dockerignore initial commit — cassandra v0.1 2026-05-15 21:56:10 +01:00
.env.example initial commit — cassandra v0.1 2026-05-15 21:56:10 +01:00
.gitignore initial commit — cassandra v0.1 2026-05-15 21:56:10 +01:00
alembic.ini initial commit — cassandra v0.1 2026-05-15 21:56:10 +01:00
docker-compose.override.yml sync: encrypted cloud backup for portfolios + settings UX rework 2026-05-23 16:15:54 +02:00
docker-compose.prod.yml deploy: uvicorn --proxy-headers so https stays https behind NPM 2026-05-22 21:47:48 +01:00
docker-compose.test.yml test: standalone test container, isolated from the live prod stack 2026-05-25 23:58:55 +02:00
docker-compose.yml deploy: mount app/ + alembic from host in base compose 2026-05-25 12:49:27 +02:00
Dockerfile test+fix: make the suite run cleanly in the test container 2026-05-26 00:11:18 +02:00
pyproject.toml test: standalone test container, isolated from the live prod stack 2026-05-25 23:58:55 +02:00
README.md deploy: split compose into base (prod-ready) + dev override 2026-05-22 21:30:28 +01:00

Read the Markets

Containerised macro-strategy dashboard — hourly market data, RSS news, Trading 212 portfolio, and an AI-generated strategic log written by Cassandra, the in-product seer. Read-only by design.

Production:

The Python package is still named cassandra and several internal identifiers (cookie names, advisory-lock keys, CASSANDRA_TOKEN env var, CSS filename) keep the legacy name on purpose — renaming them would invalidate live sessions / locks / configs for no user benefit. See app/branding.py for the brand single-source-of-truth.

Quick start (local dev)

cp .env.example .env       # fill in API keys; set CASSANDRA_TOKEN if exposing
docker compose up --build  # db + app + scheduler + daily backup sidecar
open http://localhost:8000/  # or whichever CASSANDRA_PORT you set

docker-compose.override.yml is auto-loaded and adds the host port binding so the app is reachable on localhost.

Production (VPS, NPM-fronted)

Always invoke with explicit -f flags — that way the dev override is skipped and the prod overlay (no host port, joins the external intranet Docker network, uvicorn on port 80) is applied:

docker compose -f docker-compose.yml -f docker-compose.prod.yml up -d --build

Point Nginx Proxy Manager at upstream readmarkets-app-1:80.

Architecture

  • app (FastAPI + Jinja2 + HTMX) — web dashboard on port 8000
  • scheduler (APScheduler) — hourly ingestion jobs (market, news, portfolio, AI log)
  • db (MariaDB 11) — quotes, headlines, portfolio snapshots, strategic logs, job runs
  • backup (sidecar) — daily mariadb-dump to ./backup/

See /home/gg/.claude/plans/ok-i-think-this-tidy-lake.md for the design plan.

Config

File Purpose
config/default.toml Universal data tables: indicator groups, RSS feeds, keyword presets
config/portfolio.toml User-specific portfolios (overrides default.toml)
.env Secrets and runtime knobs — mounted read-only into containers

Endpoints

  • GET / — dashboard
  • GET /portfolio/{name} — portfolio detail
  • GET /news — news feed
  • GET /log — strategic-log archive
  • GET /api/health — job status (last success / failure per job)

All authenticated routes require Authorization: Bearer $CASSANDRA_TOKEN if the env is set; if unset, the app is open (LAN-only mode).