a5c00c1e90
BloxServer API (FastAPI + SQLAlchemy async): - Database models: users, flows, triggers, executions, usage tracking - Clerk JWT auth with dev mode bypass for local testing - SQLite support for local dev, PostgreSQL for production - CRUD routes for flows, triggers, executions - Public webhook endpoint with token auth - Health/readiness endpoints - Pydantic schemas with camelCase aliases for frontend - Docker + docker-compose setup Architecture documentation: - Librarian architecture with RLM-powered query engine - Stripe billing integration (usage-based, trials, webhooks) - LLM abstraction layer (rate limiting, semantic cache, failover) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
84 lines
2.2 KiB
Python
84 lines
2.2 KiB
Python
"""
|
|
Database connection and session management.
|
|
|
|
Uses SQLAlchemy async with PostgreSQL.
|
|
"""
|
|
|
|
from __future__ import annotations
|
|
|
|
import os
|
|
from collections.abc import AsyncGenerator
|
|
from contextlib import asynccontextmanager
|
|
|
|
from sqlalchemy.ext.asyncio import AsyncSession, async_sessionmaker, create_async_engine
|
|
from sqlalchemy.orm import DeclarativeBase
|
|
|
|
|
|
class Base(DeclarativeBase):
|
|
"""Base class for all ORM models."""
|
|
|
|
pass
|
|
|
|
|
|
# Database URL from environment
|
|
# Supports both PostgreSQL and SQLite (for local testing)
|
|
DATABASE_URL = os.getenv(
|
|
"DATABASE_URL",
|
|
"sqlite+aiosqlite:///./bloxserver.db", # SQLite default for easy local testing
|
|
)
|
|
|
|
# Create async engine with appropriate settings
|
|
_is_sqlite = DATABASE_URL.startswith("sqlite")
|
|
|
|
if _is_sqlite:
|
|
# SQLite doesn't support pool settings
|
|
engine = create_async_engine(
|
|
DATABASE_URL,
|
|
echo=os.getenv("SQL_ECHO", "false").lower() == "true",
|
|
connect_args={"check_same_thread": False},
|
|
)
|
|
else:
|
|
# PostgreSQL with connection pooling
|
|
engine = create_async_engine(
|
|
DATABASE_URL,
|
|
echo=os.getenv("SQL_ECHO", "false").lower() == "true",
|
|
pool_pre_ping=True,
|
|
pool_size=10,
|
|
max_overflow=20,
|
|
)
|
|
|
|
# Session factory
|
|
async_session_maker = async_sessionmaker(
|
|
engine,
|
|
class_=AsyncSession,
|
|
expire_on_commit=False,
|
|
)
|
|
|
|
|
|
async def init_db() -> None:
|
|
"""Create all tables. Call once at startup."""
|
|
async with engine.begin() as conn:
|
|
await conn.run_sync(Base.metadata.create_all)
|
|
|
|
|
|
async def get_db() -> AsyncGenerator[AsyncSession, None]:
|
|
"""Dependency for FastAPI routes. Yields a database session."""
|
|
async with async_session_maker() as session:
|
|
try:
|
|
yield session
|
|
await session.commit()
|
|
except Exception:
|
|
await session.rollback()
|
|
raise
|
|
|
|
|
|
@asynccontextmanager
|
|
async def get_db_context() -> AsyncGenerator[AsyncSession, None]:
|
|
"""Context manager for use outside of FastAPI routes."""
|
|
async with async_session_maker() as session:
|
|
try:
|
|
yield session
|
|
await session.commit()
|
|
except Exception:
|
|
await session.rollback()
|
|
raise
|