Files
matchmaking-v2/app/db/session.py
raulgupta b1e9cdd182 Engine v2: embeddings sift + Opus curator + Postgres feed persistence
- A1: fire the hard filter (Apify is precise); embedding vibe-ranker (embed.py)
  blends with the floor-free white-box (rank.py) to sift ~90 -> top 18
- A2: Opus curator (curate.py) reads the 18 -> honest <=count + Gemini-voiced
  report cards; graceful fallback to the white-box + templated cards
- LLM via opencode.ai/zen gateway (llm.py): Opus chat + direct-OpenAI embeddings
- Run LLM work off the event loop (asyncio.to_thread) so the Redis response publishes
- C1: dedicated Postgres (app/db/) persists the per-user feed; get_scout_feed
  replays it so matches survive navigation/refresh
- match contract + report-card fields (schema.py); skills.py; tests/
2026-06-19 15:51:16 +05:30

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983 B
Python

"""Async SQLAlchemy engine + session factory (mirrors qscore-service/app/db/session.py).
Lazily built so the service boots even when no DB is configured — `engine()` returns None then,
and every caller treats that as "persistence off".
"""
from __future__ import annotations
import logging
from functools import lru_cache
from sqlalchemy.ext.asyncio import AsyncSession, async_sessionmaker, create_async_engine
from app.config import get_settings
logger = logging.getLogger(__name__)
@lru_cache
def _engine_and_factory():
s = get_settings()
if not s.DATABASE_URL:
return None, None
eng = create_async_engine(s.DATABASE_URL, pool_pre_ping=True, pool_size=5, max_overflow=10)
factory = async_sessionmaker(eng, class_=AsyncSession, expire_on_commit=False)
return eng, factory
def engine():
return _engine_and_factory()[0]
def session_factory():
return _engine_and_factory()[1]
def db_enabled() -> bool:
return engine() is not None