frontAnswerer/lib/utils/parse-error.ts

import type { AxiosError } from "axios";

export type ServerError = {
  statusCode: number;
  error: string;
  message: string;
};

export const parseAxiosError = (nativeError: unknown): [string, number?] => {
  const error = nativeError as AxiosError;

  if (error.response?.data && "statusCode" in (error.response.data as ServerError)) {
    const serverError = error.response.data as ServerError;
    const translatedMessage = serverError.message;
    if (translatedMessage !== undefined) serverError.message = translatedMessage;
    return [serverError.message, serverError.statusCode];
  }

  switch (error.status) {
    case 404:
      return ["Not found.", error.status];

    case 403:
      return ["Access is restricted.", error.status];

    case 401:
      return ["Authorization error.", error.status];

    case 500:
      return ["Internal Server Error.", error.status];

    case 503:
      return ["Service unavailable.", error.status];

    default:
      return ["Unknown server error."];
  }
};