nuxt4-demo/server/service/config/errors.ts

import { ConfigKeyNotFoundError, ConfigScopeInvalidError, ConfigValueInvalidError } from ".";

function hasStatusCode(err: unknown): err is { statusCode: number } {
  return typeof err === "object" && err !== null && "statusCode" in err
    && typeof (err as { statusCode?: unknown }).statusCode === "number";
}

export function toPublicConfigError(err: unknown) {
  if (hasStatusCode(err)) {
    return err;
  }
  if (err instanceof ConfigKeyNotFoundError) {
    return createError({
      statusCode: 404,
      statusMessage: err.message,
      data: { code: err.code },
    });
  }
  if (err instanceof ConfigScopeInvalidError || err instanceof ConfigValueInvalidError) {
    return createError({
      statusCode: 400,
      statusMessage: err.message,
      data: { code: err.code },
    });
  }
  return createError({
    statusCode: 500,
    statusMessage: "服务器繁忙，请稍后重试",
  });
}