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File size: 2,059 Bytes
62516b8 | 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 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 | from __future__ import annotations
from typing import Any
from fastapi import FastAPI, HTTPException, Request
from fastapi.exceptions import RequestValidationError
from fastapi.responses import JSONResponse
from src.core.api_response import (
build_error_response,
error_code_from_status,
normalize_exception_detail,
)
class ServiceError(Exception):
def __init__(
self,
message: str,
status_code: int = 400,
*,
code: str | None = None,
details: Any | None = None,
) -> None:
self.message = message
self.status_code = status_code
self.code = code
self.details = details
super().__init__(message)
def register_exception_handlers(app: FastAPI) -> None:
@app.exception_handler(ServiceError)
async def handle_service_error(request: Request, exc: ServiceError) -> JSONResponse:
return build_error_response(
request,
status_code=exc.status_code,
code=exc.code or error_code_from_status(exc.status_code),
message=exc.message,
details=exc.details,
)
@app.exception_handler(HTTPException)
async def handle_http_exception(request: Request, exc: HTTPException) -> JSONResponse:
message, details = normalize_exception_detail(
exc.detail,
default_message="HTTP request failed.",
)
return build_error_response(
request,
status_code=exc.status_code,
code=error_code_from_status(exc.status_code),
message=message,
details=details,
headers=exc.headers,
)
@app.exception_handler(RequestValidationError)
async def handle_validation_error(
request: Request, exc: RequestValidationError
) -> JSONResponse:
return build_error_response(
request,
status_code=422,
code="validation_error",
message="Request validation failed.",
details=exc.errors(),
)
|