f94a18fee7
Add error handling for configuration loading at application startup. If the config file is missing or invalid, the app will exit with a clear error message instead of crashing later. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
112 lines
3.3 KiB
Python
112 lines
3.3 KiB
Python
import sys
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from fastapi import FastAPI, Request
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from fastapi.exceptions import RequestValidationError
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from fastapi.responses import JSONResponse
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from config.settings import load_settings
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# 加载配置文件，失败则退出
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try:
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settings = load_settings()
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except FileNotFoundError as e:
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print(f"配置文件错误: {e}")
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sys.exit(1)
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except Exception as e:
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print(f"加载配置失败: {e}")
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sys.exit(1)
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from app.api.v1.location import router as location_router
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from app.api.v1.box import router as box_router
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from app.services.location_service import DuplicateLocationError
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from app.services.box_service import ZongpaiNotFoundError, DuplicateBoxItemError, InvalidZongpaiError
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app = FastAPI(title="CargoTrace API", version="0.1.0")
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app.include_router(location_router, prefix="/CargoTrace")
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app.include_router(box_router, prefix="/CargoTrace")
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@app.exception_handler(DuplicateLocationError)
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async def duplicate_location_handler(request: Request, exc: DuplicateLocationError):
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return JSONResponse(
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status_code=409,
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content={
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"error_code": "DUPLICATE_LOCATION",
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"message": "该总排号已存在货位记录",
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"location_code": exc.location_code,
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"registered_at": exc.registered_at,
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},
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)
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@app.exception_handler(RequestValidationError)
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async def validation_error_handler(request: Request, exc: RequestValidationError):
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for err in exc.errors():
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msg = err.get("msg", "")
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if "INVALID_ZONGPAI" in msg or "INVALID_LOCATION" in msg or "INVALID_BOX_NO" in msg or "INVALID_QUANTITY" in msg:
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error_code = msg.replace("Value error, ", "")
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return JSONResponse(
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status_code=400,
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content={
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"error_code": error_code,
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"message": error_code,
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},
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)
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return JSONResponse(
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status_code=422,
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content={"detail": exc.errors()},
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)
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@app.exception_handler(ValueError)
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async def value_error_handler(request: Request, exc: ValueError):
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error_code = str(exc)
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return JSONResponse(
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status_code=400,
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content={
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"error_code": error_code,
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"message": error_code,
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},
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)
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@app.exception_handler(InvalidZongpaiError)
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async def invalid_zongpai_handler(request: Request, exc: InvalidZongpaiError):
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return JSONResponse(
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status_code=400,
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content={
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"error_code": "INVALID_ZONGPAI",
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"message": "总排号格式不合法",
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},
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)
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@app.exception_handler(ZongpaiNotFoundError)
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async def zongpai_not_found_handler(request: Request, exc: ZongpaiNotFoundError):
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return JSONResponse(
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status_code=404,
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content={
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"error_code": "ZONGPAI_NOT_FOUND",
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"message": "未找到该总排号对应的排产号信息",
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},
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)
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@app.exception_handler(DuplicateBoxItemError)
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async def duplicate_box_handler(request: Request, exc: DuplicateBoxItemError):
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return JSONResponse(
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status_code=409,
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content={
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"error_code": "DUPLICATE_BOX_NO",
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"message": f"排产号 {exc.paichan_no} 下箱号 {exc.box_no} 已存在",
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"paichan_no": exc.paichan_no,
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"box_no": exc.box_no,
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},
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)
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@app.get("/")
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async def root():
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return {"message": "Welcome to CargoTrace API"}
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