47 lines
1.8 KiB
Python
47 lines
1.8 KiB
Python
from __future__ import annotations
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from fastapi import FastAPI, Request
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from fastapi.encoders import jsonable_encoder
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from fastapi.exceptions import RequestValidationError
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from fastapi.responses import JSONResponse
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from starlette.exceptions import HTTPException as StarletteHTTPException
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from services.protocol.error_response import anthropic_error_response, openai_error_response
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def _is_openai_compatible_path(path: str) -> bool:
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return path == "/v1" or path.startswith("/v1/")
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def _is_anthropic_messages_path(path: str) -> bool:
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return path == "/v1/messages"
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def _compatible_error_response(
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request: Request,
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detail: object,
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status_code: int,
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headers: dict[str, str] | None = None,
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) -> JSONResponse:
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if _is_anthropic_messages_path(request.url.path):
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return anthropic_error_response(detail, status_code, headers=headers)
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return openai_error_response(detail, status_code, headers=headers)
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def install_exception_handlers(app: FastAPI) -> None:
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@app.exception_handler(StarletteHTTPException)
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async def http_exception_handler(request: Request, exc: StarletteHTTPException) -> JSONResponse:
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if _is_openai_compatible_path(request.url.path):
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return _compatible_error_response(request, exc.detail, exc.status_code, exc.headers)
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return JSONResponse(
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status_code=exc.status_code,
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content={"detail": jsonable_encoder(exc.detail)},
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headers=exc.headers,
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)
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@app.exception_handler(RequestValidationError)
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async def validation_exception_handler(request: Request, exc: RequestValidationError) -> JSONResponse:
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if _is_openai_compatible_path(request.url.path):
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return _compatible_error_response(request, exc.errors(), 422)
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return JSONResponse(status_code=422, content={"detail": jsonable_encoder(exc.errors())})
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