40 lines
1.2 KiB
Python
40 lines
1.2 KiB
Python
from fastapi import FastAPI
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from fastapi.middleware.cors import CORSMiddleware
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from contextlib import asynccontextmanager
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from app.config import settings
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@asynccontextmanager
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async def lifespan(app: FastAPI):
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# 启动时：初始化 DB 连接池、Redis 事件总线与外部适配器
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print(f"Starting {settings.PROJECT_NAME} in [{settings.ENVIRONMENT}] mode...")
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yield
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# 关闭时：优雅断开连接
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print(f"Shutting down {settings.PROJECT_NAME}...")
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app = FastAPI(
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title=settings.PROJECT_NAME,
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version=settings.VERSION,
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lifespan=lifespan,
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docs_url="/docs" if settings.ENVIRONMENT != "production" else None,
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redoc_url="/redoc" if settings.ENVIRONMENT != "production" else None
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)
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# CORS 配置
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app.add_middleware(
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CORSMiddleware,
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allow_origins=settings.CORS_ORIGINS,
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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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@app.get("/health", tags=["System"])
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async def health_check():
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"""生产探活与健康检查端点 (Blue-Green Probe)"""
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return {
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"status": "ok",
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"service": "wtfx-backend",
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"version": settings.VERSION,
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"environment": settings.ENVIRONMENT
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}
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