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rose-ash/blog/queries.sx
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Replace inter-service _handlers dicts with declarative sx defquery/defaction
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>
2026-03-04 08:13:50 +00:00

39 lines
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;; Blog service — inter-service data queries
(defquery post-by-slug (&key slug)
"Fetch a single blog post by its URL slug."
(service "blog" "get-post-by-slug" :slug slug))
(defquery post-by-id (&key id)
"Fetch a single blog post by its primary key."
(service "blog" "get-post-by-id" :id id))
(defquery posts-by-ids (&key ids)
"Fetch multiple blog posts by comma-separated IDs."
(service "blog" "get-posts-by-ids" :ids (split-ids ids)))
(defquery search-posts (&key query page per-page)
"Search blog posts by text query, paginated."
(let ((result (service "blog" "search-posts"
:query query :page page :per-page per-page)))
{"posts" (nth result 0) "total" (nth result 1)}))
(defquery page-config-ensure (&key container-type container-id)
"Get or create a PageConfig for a container."
(service "page-config" "ensure"
:container-type container-type :container-id container-id))
(defquery page-config (&key container-type container-id)
"Return a single PageConfig by container type + id."
(service "page-config" "get-by-container"
:container-type container-type :container-id container-id))
(defquery page-config-by-id (&key id)
"Return a single PageConfig by primary key."
(service "page-config" "get-by-id" :id id))
(defquery page-configs-batch (&key container-type ids)
"Return PageConfigs for multiple container IDs (comma-separated)."
(service "page-config" "get-batch"
:container-type container-type :ids (split-ids ids)))