deckhearth/.convoys/pricing-online-local/brief-11-stores-nearby-api.md

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---
convoy: pricing-online-local
brief_number: 11
depends_on: [10]
recommended_model: composer-2.5
model_tier: standard
files:
- pages/api/stores/nearby.js
- lib/rate-limit.js
- test/api/stores-nearby.test.js
---
# Brief 11: Stores nearby API
## Goal (1 sentence)
Ship `GET /api/stores/nearby` with geocode + Overpass lookup, caching, and per-user refresh rate limit.
## Files in scope (do not edit anything else)
- `pages/api/stores/nearby.js`
- `lib/rate-limit.js`
- `test/api/stores-nearby.test.js`
## Conventions to follow
- **Auth required** (`getUserFromRequest` → 401). Zip from user's saved `home_zip` only — ignore arbitrary `zip` query param (security planning decision A).
- Add `stores` limiter: 1/hour/user; IP backstop for burst abuse.
- Respect `PRICING_LOCAL_ENABLED` — return 503 when `false`.
- Overpass fixed-template query only (see Brief 10).
## Acceptance criteria
- [ ] Endpoint returns store list for authenticated user with saved zip
- [ ] 401 without Bearer token
- [ ] Second call within 7 days serves from `geo_stores_cache`
- [ ] Rate limit returns 429 with `Retry-After`
- [ ] Tests pass
- [ ] No scope expansion
## Rationale (≤3 sentences)
Phase 2 API surface from convoy spec. Auth-gated zip prevents geocode relay abuse. Rate limiting protects Overpass.