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https://github.com/fastapiadmin/FastapiAdmin.git
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105 lines
3.6 KiB
Python
105 lines
3.6 KiB
Python
# -*- coding: utf-8 -*-
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import aioredis
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from motor.motor_asyncio import AsyncIOMotorClient
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from fastapi import FastAPI
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from sqlalchemy.ext.asyncio import (
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create_async_engine,
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async_sessionmaker,
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AsyncSession
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)
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from app.core.logger import logger
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from app.config.setting import settings
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from app.core.exceptions import CustomException
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# 创建数据库引擎
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async_engine = create_async_engine(
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url=settings.get_database_uri,
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echo=settings.DATABASE_ECHO,
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echo_pool=settings.ECHO_POOL,
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pool_pre_ping=settings.POOL_PRE_PING,
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future=settings.FUTURE,
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pool_recycle=settings.POOL_RECYCLE,
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# pool_size=settings.POOL_SIZE, # sqlite 不支持
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# max_overflow=settings.MAX_OVERFLOW, # sqlite 不支持
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# pool_timeout=settings.POOL_TIMEOUT, # sqlite 不支持
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)
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# 创建会话工厂
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async_session = async_sessionmaker(
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bind=async_engine,
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autocommit=settings.AUTOCOMMIT,
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autoflush=settings.AUTOFETCH,
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expire_on_commit=settings.EXPIRE_ON_COMMIT,
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class_=AsyncSession
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)
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def session_connect() -> AsyncSession:
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"""获取数据库会话"""
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if not settings.SQL_DB_ENABLE:
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raise CustomException(msg="请先开启数据库连接", data="请启用 app/config/setting.py: SQL_DB_ENABLE")
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return async_session()
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async def redis_connect(app: FastAPI, status: bool) -> aioredis.Redis:
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"""创建或关闭Redis连接"""
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if not settings.REDIS_ENABLE:
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raise CustomException(msg="请先开启Redis连接", data="请启用 app/core/config.py: REDIS_ENABLE")
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if status:
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try:
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rd = await aioredis.from_url(
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url=settings.get_redis_uri,
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encoding='utf-8',
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decode_responses=True,
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health_check_interval=20,
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max_connections=settings.POOL_SIZE,
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socket_timeout=settings.POOL_TIMEOUT
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)
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app.state.redis = rd
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if await rd.ping():
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logger.info("Redis连接成功")
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return rd
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raise CustomException(msg="Redis连接失败")
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except aioredis.AuthenticationError as e:
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logger.error(f'Redis认证失败: {e}')
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raise aioredis.AuthenticationError(f"Redis认证失败: {e}")
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except aioredis.TimeoutError as e:
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logger.error(f'Redis连接超时: {e}')
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raise aioredis.TimeoutError(f"Redis连接超时: {e}")
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except aioredis.RedisError as e:
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logger.error(f'Redis连接错误: {e}')
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raise aioredis.RedisError(f"Redis连接错误: {e}")
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else:
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await app.state.redis.close()
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logger.info('Redis连接已关闭')
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async def mongodb_connect(app: FastAPI, status: bool) -> AsyncIOMotorClient:
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"""创建或关闭MongoDB连接"""
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if not settings.MONGO_DB_ENABLE:
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raise CustomException(msg="请先开启MongoDB连接", data="请启用 app/core/config.py: MONGO_DB_ENABLE")
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if status:
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try:
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client = AsyncIOMotorClient(
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settings.get_mongodb_uri,
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maxPoolSize=settings.POOL_SIZE,
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minPoolSize=settings.MAX_OVERFLOW,
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serverSelectionTimeoutMS=settings.POOL_TIMEOUT * 1000
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)
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app.state.mongo_client = client
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app.state.mongo = client[settings.MONGO_DB_NAME]
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data = await client.server_info()
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logger.info("MongoDB连接成功", data)
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return data
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except Exception as e:
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logger.error(f"MongoDB连接失败: {e}")
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raise ValueError(f"MongoDB连接失败: {e}")
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else:
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app.state.mongo_client.close()
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logger.info("MongoDB连接已关闭")
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