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bd4057b | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 | from __future__ import annotations
from fastapi import FastAPI, Request
from fastapi.encoders import jsonable_encoder
from fastapi.exceptions import RequestValidationError
from fastapi.responses import JSONResponse
from starlette.exceptions import HTTPException as StarletteHTTPException
from services.protocol.error_response import anthropic_error_response, openai_error_response
def _is_openai_compatible_path(path: str) -> bool:
return path == "/v1" or path.startswith("/v1/")
def _is_anthropic_messages_path(path: str) -> bool:
return path == "/v1/messages"
def _compatible_error_response(
request: Request,
detail: object,
status_code: int,
headers: dict[str, str] | None = None,
) -> JSONResponse:
if _is_anthropic_messages_path(request.url.path):
return anthropic_error_response(detail, status_code, headers=headers)
return openai_error_response(detail, status_code, headers=headers)
def install_exception_handlers(app: FastAPI) -> None:
@app.exception_handler(StarletteHTTPException)
async def http_exception_handler(request: Request, exc: StarletteHTTPException) -> JSONResponse:
if _is_openai_compatible_path(request.url.path):
return _compatible_error_response(request, exc.detail, exc.status_code, exc.headers)
return JSONResponse(
status_code=exc.status_code,
content={"detail": jsonable_encoder(exc.detail)},
headers=exc.headers,
)
@app.exception_handler(RequestValidationError)
async def validation_exception_handler(request: Request, exc: RequestValidationError) -> JSONResponse:
if _is_openai_compatible_path(request.url.path):
return _compatible_error_response(request, exc.errors(), 422)
return JSONResponse(status_code=422, content={"detail": jsonable_encoder(exc.errors())})
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