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https://github.com/karpathy/nanochat.git
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4b4aca642a
- Alembic async migrations: users, conversations, messages, is_favorited - FastAPI auth service: Google + GitHub OAuth, RS256 JWT, refresh cookie - /auth/me, /auth/refresh, /auth/validate (service-to-service) - rate limiting 10/min on OAuth routes, CORS locked to FRONTEND_URL Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
68 lines
1.8 KiB
Python
68 lines
1.8 KiB
Python
"""Alembic environment configuration for async PostgreSQL."""
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from __future__ import annotations
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import asyncio
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import os
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from logging.config import fileConfig
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from alembic import context
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from sqlalchemy import pool
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from sqlalchemy.engine import Connection
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from sqlalchemy.ext.asyncio import async_engine_from_config
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config = context.config
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if config.config_file_name is not None:
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fileConfig(config.config_file_name)
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target_metadata = None
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def _database_url() -> str:
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url = os.environ.get("DATABASE_URL")
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if not url:
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raise RuntimeError("DATABASE_URL environment variable is required for Alembic")
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if url.startswith("postgresql://"):
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url = url.replace("postgresql://", "postgresql+asyncpg://", 1)
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return url
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def run_migrations_offline() -> None:
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context.configure(
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url=_database_url(),
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target_metadata=target_metadata,
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literal_binds=True,
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dialect_opts={"paramstyle": "named"},
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)
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with context.begin_transaction():
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context.run_migrations()
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def do_run_migrations(connection: Connection) -> None:
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context.configure(connection=connection, target_metadata=target_metadata)
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with context.begin_transaction():
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context.run_migrations()
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async def run_async_migrations() -> None:
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configuration = config.get_section(config.config_ini_section) or {}
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configuration["sqlalchemy.url"] = _database_url()
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connectable = async_engine_from_config(
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configuration,
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prefix="sqlalchemy.",
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poolclass=pool.NullPool,
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)
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async with connectable.connect() as connection:
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await connection.run_sync(do_run_migrations)
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await connectable.dispose()
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def run_migrations_online() -> None:
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asyncio.run(run_async_migrations())
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if context.is_offline_mode():
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run_migrations_offline()
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else:
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run_migrations_online()
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