error_handler.py

import logging
import traceback

from flask import make_response
from flask.typing import ResponseReturnValue
from werkzeug.exceptions import HTTPException

from eligibility_signposting_api.api_error_response import INTERNAL_SERVER_ERROR

logger = logging.getLogger(__name__)


def handle_exception(e: Exception) -> ResponseReturnValue | HTTPException:
    logger.exception("Unexpected Exception", exc_info=e)

    # Let Flask handle its own exceptions for now.
    if isinstance(e, HTTPException):
        return e

    full_traceback = "".join(traceback.format_exception(e))
    response = INTERNAL_SERVER_ERROR.log_and_generate_response(
        log_message=f"An unexpected error occurred: {full_traceback}", diagnostics="An unexpected error occurred."
    )
    return make_response(response.get("body"), response.get("statusCode"))