pythonasyncioapiasyncfastapiframeworkjsonjson-schemaopenapiopenapi3pydanticpython-typespython3redocreststarletteswaggerswagger-uiuvicornweb
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
42 lines
1.5 KiB
42 lines
1.5 KiB
"""
|
|
Default exception handlers for FastAPI applications.
|
|
|
|
Provides async handler functions for HTTP exceptions, request validation
|
|
errors, and WebSocket validation errors. These are registered automatically
|
|
when a FastAPI application is created.
|
|
"""
|
|
|
|
from fastapi.encoders import jsonable_encoder
|
|
from fastapi.exceptions import RequestValidationError, WebSocketRequestValidationError
|
|
from fastapi.utils import is_body_allowed_for_status_code
|
|
from fastapi.websockets import WebSocket
|
|
from starlette.exceptions import HTTPException
|
|
from starlette.requests import Request
|
|
from starlette.responses import JSONResponse, Response
|
|
from starlette.status import WS_1008_POLICY_VIOLATION
|
|
|
|
|
|
async def http_exception_handler(request: Request, exc: HTTPException) -> Response:
|
|
headers = getattr(exc, "headers", None)
|
|
if not is_body_allowed_for_status_code(exc.status_code):
|
|
return Response(status_code=exc.status_code, headers=headers)
|
|
return JSONResponse(
|
|
{"detail": exc.detail}, status_code=exc.status_code, headers=headers
|
|
)
|
|
|
|
|
|
async def request_validation_exception_handler(
|
|
request: Request, exc: RequestValidationError
|
|
) -> JSONResponse:
|
|
return JSONResponse(
|
|
status_code=422,
|
|
content={"detail": jsonable_encoder(exc.errors())},
|
|
)
|
|
|
|
|
|
async def websocket_request_validation_exception_handler(
|
|
websocket: WebSocket, exc: WebSocketRequestValidationError
|
|
) -> None:
|
|
await websocket.close(
|
|
code=WS_1008_POLICY_VIOLATION, reason=jsonable_encoder(exc.errors())
|
|
)
|
|
|