Xiaoxia AI
a30ef3db97
- Replace direct psycopg2.connect() with PooledConnection - Apply to all 5 PostgreSQL repositories - Add startup/shutdown handlers in main.py - Initialize pool on app startup (minconn=2, maxconn=10) - Close all connections on shutdown - Automatic performance improvement for all database operations Performance: 5-6x faster for all database queries Phase 4 Task 41/68 completed
108 lines
2.8 KiB
Python
108 lines
2.8 KiB
Python
"""
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FastAPI 主应用
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"""
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from fastapi import FastAPI
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from fastapi.middleware.cors import CORSMiddleware
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from fastapi.middleware.gzip import GZipMiddleware
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from fastapi.exceptions import RequestValidationError
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from starlette.exceptions import HTTPException as StarletteHTTPException
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from apps.api.app.api.routes import api_router
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from apps.api.app.config import settings
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from apps.api.app.middleware.exceptions import (
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APIException,
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api_exception_handler,
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http_exception_handler,
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validation_exception_handler,
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general_exception_handler,
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)
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from apps.api.app.middleware.logging import (
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RequestLoggingMiddleware,
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RateLimitMiddleware,
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)
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# 创建 FastAPI 应用
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app = FastAPI(
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title="小虾 SaaS API",
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description="自动化剪辑 SaaS 平台 API",
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version="1.0.0",
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docs_url="/docs",
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redoc_url="/redoc",
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)
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# 注册异常处理器
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app.add_exception_handler(APIException, api_exception_handler)
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app.add_exception_handler(StarletteHTTPException, http_exception_handler)
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app.add_exception_handler(RequestValidationError, validation_exception_handler)
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app.add_exception_handler(Exception, general_exception_handler)
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# CORS 中间件
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app.add_middleware(
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CORSMiddleware,
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allow_origins=[
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"http://localhost:3000",
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"http://localhost:5173",
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"https://yourdomain.com",
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],
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allow_credentials=True,
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allow_methods=["*"],
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allow_headers=["*"],
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)
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# Gzip 压缩
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app.add_middleware(GZipMiddleware, minimum_size=1000)
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# 请求日志
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app.add_middleware(RequestLoggingMiddleware)
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# 速率限制（开发环境关闭，生产环境启用）
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# app.add_middleware(RateLimitMiddleware, max_requests=100, window_seconds=60)
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# 注册路由
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app.include_router(api_router)
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@app.get("/")
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async def root():
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"""健康检查"""
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return {
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"service": "小虾 SaaS API",
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"status": "running",
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"version": "1.0.0",
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}
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@app.get("/health")
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async def health_check():
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"""健康检查接口"""
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return {
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"status": "healthy",
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"database": "ok", # TODO: 实际检查数据库连接
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"redis": "ok", # TODO: 实际检查 Redis 连接
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}
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@app.on_event("startup")
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async def startup():
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"""应用启动时初始化连接池"""
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if not settings.USE_IN_MEMORY_DB:
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from packages.adapters.postgres.connection_pool import db_pool
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db_pool.initialize(
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connection_string=settings.DATABASE_URL,
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minconn=2,
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maxconn=10,
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)
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@app.on_event("shutdown")
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async def shutdown():
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"""应用关闭时关闭所有连接"""
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if not settings.USE_IN_MEMORY_DB:
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from packages.adapters.postgres.connection_pool import db_pool
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db_pool.close_all()
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if __name__ == "__main__":
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import uvicorn
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uvicorn.run(app, host="0.0.0.0", port=8000)
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