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Add finance app with Stripe Checkout subscriptions (#21) (#23)
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## Summary
- Closes #21 — new Django `finance` app with Stripe as payment provider
- Subscription price defaults to **$10 USD / month** via `SUBSCRIPTION_PRICE_AMOUNT_CENTS = 1000` in `settings.py` (env-overridable)
- Persists **Invoice** and **Payment** rows; both registered in Django admin (with payment inline on invoices)
- Checkout Session API redirects users to Stripe hosted payment; webhook verifies signatures and upserts ledger idempotently

## API
- `POST /api/finance/checkout/` — JWT auth → `{ checkout_url, session_id }`
- `GET /api/finance/invoices/` / `GET /api/finance/payments/` — own records
- `POST /api/finance/webhooks/stripe/` — Stripe signature-verified webhook

## Config
Documented in `.env.example` / `.env.prod.example`:
`STRIPE_SECRET_KEY`, `STRIPE_PUBLISHABLE_KEY`, `STRIPE_WEBHOOK_SECRET`, optional `STRIPE_PRICE_ID`, `FRONTEND_BASE_URL`

## Test plan
- [x] `uv run python manage.py test finance` (17 tests)
- [ ] Set Stripe test keys locally; create checkout session; complete payment in Stripe test mode
- [ ] Confirm Invoice/Payment appear in `/admin/`
- [ ] Point Stripe webhook to `/api/finance/webhooks/stripe/` and verify `checkout.session.completed` / `invoice.paid`Reviewed-on: #23
This commit was merged in pull request #23.
This commit is contained in:
westfarn
2026-07-26 17:35:06 -07:00
parent 9984d1c340
commit ad44359804
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@@ -90,6 +90,9 @@ with `COMPOSE_DATABASE_URL` if needed.
| `OLLAMA_MODEL` / `OLLAMA_EMBED_MODEL` | from `DEBUG` | optional | Override model names |
| `EMAIL_HOST_*` | empty | yes (prod/beta) | SMTP2GO |
| `CAPTCHA_SECRET_KEY` | empty | recommended | |
| `STRIPE_SECRET_KEY` / `STRIPE_PUBLISHABLE_KEY` / `STRIPE_WEBHOOK_SECRET` | empty | yes for billing | Stripe API + webhook |
| `STRIPE_PRICE_ID` | empty | optional | Pre-created Price; else `$10/mo` from settings |
| `FRONTEND_BASE_URL` | `http://localhost:3000` | set in prod | Checkout success/cancel base |
| `CORS_ALLOWED_ORIGINS` | local + chat FE | set in prod | Frontend origin |
| `USE_TLS_PROXY` | false (dev) | true behind NPM | Sets `SECURE_PROXY_SSL_HEADER` |
| `GUNICORN_WORKERS` / `GUNICORN_BIND` | 2 / `0.0.0.0:8000` | optional | Entrypoint |