The inter-service data layer (fetch_data/call_action) was the least structured part of the codebase — Python _handlers dicts with ad-hoc param extraction scattered across 16 route files. This replaces them with declarative .sx query/action definitions that make the entire inter-service protocol self-describing and greppable. Infrastructure: - defquery/defaction special forms in the sx evaluator - Query/action registry with load, lookup, and schema introspection - Query executor using async_eval with I/O primitives - Blueprint factories (create_data_blueprint/create_action_blueprint) with sx-first dispatch and Python fallback - /internal/schema endpoint on every service - parse-datetime and split-ids primitives for type coercion Service extractions: - LikesService (toggle, is_liked, liked_slugs, liked_ids) - PageConfigService (ensure, get_by_container, get_by_id, get_batch, update) - RelationsService (wraps module-level functions) - AccountDataService (user_by_email, newsletters) - CartItemsService, MarketDataService (raw SQLAlchemy lookups) 50 of 54 handlers converted to sx, 4 Python fallbacks remain (ghost-sync/push-member, clear-cart-for-order, create-order). Net: -1,383 lines Python, +251 lines modified. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Account App
User dashboard for the Rose Ash cooperative. Provides account management, newsletter preferences, and widget pages for tickets and bookings.
Structure
app.py # Application factory (create_base_app + blueprints)
path_setup.py # Adds project root + app dir to sys.path
entrypoint.sh # Container entrypoint (Redis flush, start)
bp/
account/ # Dashboard, newsletters, widget pages (tickets, bookings)
auth/ # OAuth client routes + HTTP token exchange for non-coop clients
fragments/ # auth-menu fragment (sign-in button / user menu)
models/ # Re-export stubs pointing to shared/models/
services/ # register_domain_services() — wires all domains
templates/ # Account-specific templates (override shared/)
Auth menu
Account serves the auth-menu fragment consumed by all other apps' headers. It renders either a sign-in button (anonymous) or the user's email with a dropdown (authenticated), for both desktop and mobile layouts.
OAuth token exchange
POST /auth/oauth/token provides HTTP-based token exchange for non-coop OAuth clients (e.g., Artdag).
Cross-domain communication
services.blog.*— post queries for page contextservices.calendar.*— calendar/entry queries for bookings panelservices.cart.*— cart summary + orders for tickets panel
Fragments served
- auth-menu — sign-in button or user email menu (desktop + mobile)