Now modify the filemain.pyto receive a body from aPUTrequest. Declare the body using standard Python types, thanks to Pydantic. fromtypingimportUnionfromfastapiimportFastAPIfrompydanticimportBaseModelapp=FastAPI()classItem(BaseModel):name:strprice:floatis_offer:Union[bool,None]=None@app.get("/")...
Whenever a new request arrives,FastAPIwill take care of: Calling your dependency ("dependable") function with the correct parameters. Get the result from your function. Assign that result to the parameter in yourpath operation function. This way you write shared code once andFastAPItakes care of...
处理根路径的 GET 请求,并使用 log_request 作为依赖项。 Args: dependency: 依赖项函数的返回值,这里没有返回值,仅执行函数逻辑。 Returns: dict: 包含欢迎信息的字典。 """ return {"message": "欢迎来到山海摸鱼人的 FastAPI 世界"} 代码解释 依赖项函数log_request:这是一个简单的函数,它的作用是打印一条...
last_query:Optional[str]=None):ifnotq:returnlast_queryreturnq@app.get("/sub_dependency")asyncdefsub_dependency(final_query:str=Depends(sub_query,# 默认就是True,表示当多个依赖有一个共同的子依赖时,每次request请求只会调用一次子依赖,多次调用则从缓存中获取use_cache=True)):return...
)@app.get("/unicorns/{name}")asyncdefread_unicorn(name:str):ifname =="yolo":raiseUnicornException(name=name)return{"unicorn_name": name} 在抛出HTTPException异常时,FastAPI有很多默认的handler,比如RequestValidationError,可以使用此方法重写默认的handler: ...
async def needy_dependency(fresh_value: Annotated[str, Depends(get_value, use_cache=False)]): 6-23-5 | 装饰器依赖 某些情况下,不需要依赖返回值,只需要执行业务逻辑,此时可在路径操作函数的装饰器上添加 async def verify_token(x_token: Annotated[str, Header()]): if x_token != "token": rai...
424 FAILED_DEPENDENCY 425 TOO_EARLY 426 UPGRADE_REQUIRED 428 PRECONDITION_REQUIRED 429 TOO_MANY_REQUESTS 431 REQUEST_HEADER_FIELDS_TOO_LARGE 451 UNAVAILABLE_FOR_LEGAL_REASONS 500 INTERNAL_SERVER_ERROR 501 NOT_IMPLEMENTED 502 BAD_GATEWAY 503 SERVICE_UNAVAILABLE 504 GATEWAY_TIMEOUT 505 HTTP_VERSION_NOT...
对于抛出的异常,可以使用@app.exception_handler自定义handler进行处理: 代码语言:javascript 复制 from fastapiimportFastAPI,Request from fastapi.responsesimportJSONResponseclassUnicornException(Exception):def__init__(self,name:str):self.name=name app=FastAPI()@app.exception_handler(UnicornException)...
Now modify the filemain.pyto receive a body from aPUTrequest. Declare the body using standard Python types, thanks to Pydantic. fromtypingimportUnionfromfastapiimportFastAPIfrompydanticimportBaseModelapp=FastAPI()classItem(BaseModel):name:strprice:floatis_offer:Union[bool,None]=None@app.get("/")...
return last_query return q @app05.get("/sub_dependency") async def sub_dependency(final_query: str = Depends(sub_query, use_cache=True)): """use_cache默认是True, 表示当多个依赖有一个共同的子依赖时,每次request请求只会调用子依赖一次,多次调用将从缓存中获取""" return {"sub_dependency": ...