NixReaperandClaude Sonnet 5
c20df1c503
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Production-grade media metadata backend per docs/aurora-core-spec.md: Aurora-owned UUIDv7 identity system, normalized movie/TV/people/credits schema, provider abstraction with a TMDb adapter, an idempotent async ingestion pipeline (normalize -> match -> upsert -> provenance), a Postgres FTS/trigram search layer, a stateless FastAPI v1 API with Redis caching/rate-limiting, arq workers, dev/prod Docker Compose topologies, unit + integration + load tests, CI, and architecture/ database/API/ERD documentation. Co-Authored-By: Claude Sonnet 5 <[email protected]>
62 lines
1.5 KiB
Python
62 lines
1.5 KiB
Python
"""Cache abstraction over Redis (section 21).
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Redis is disposable acceleration — every function here fails open: if Redis
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is unreachable, reads report a cache miss and writes are silently skipped,
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so the API keeps serving from PostgreSQL instead of failing.
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"""
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from __future__ import annotations
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import orjson
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from redis.asyncio import Redis
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from app.core.config import get_settings
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settings = get_settings()
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CACHE_VERSION = "v1"
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def build_key(*parts: str) -> str:
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return ":".join(("aurora", CACHE_VERSION, *parts))
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async def cache_get_json(redis: Redis, key: str) -> dict | list | None:
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try:
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raw = await redis.get(key)
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except Exception:
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return None
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if raw is None:
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return None
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try:
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return orjson.loads(raw)
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except orjson.JSONDecodeError:
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return None
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async def cache_set_json(
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redis: Redis, key: str, value: dict | list, ttl: int | None = None
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) -> None:
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ttl = ttl if ttl is not None else settings.CACHE_DEFAULT_TTL
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try:
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await redis.set(key, orjson.dumps(value), ex=ttl)
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except Exception:
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return
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async def cache_delete(redis: Redis, *keys: str) -> None:
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if not keys:
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return
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try:
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await redis.delete(*keys)
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except Exception:
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return
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async def cache_delete_prefix(redis: Redis, prefix: str) -> None:
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try:
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async for key in redis.scan_iter(match=f"{prefix}*"):
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await redis.delete(key)
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except Exception:
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return
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