text: const require2 = require('tomjs/handlers/require2');
  const BaseApiError = require2('tomjs/error/base_api_error');
  const { isObject } = require2('tomjs/handlers/base_tools');
  const subdomain_cfg = require2('tomjs/configs')().subdomain;
  module.exports = function () {
    let path_pattern = undefined;
    let hostname_pattern = undefined;
    if (isObject(subdomain_cfg.response_api_formatter)) {
      path_pattern = subdomain_cfg.response_api_formatter.path;
      hostname_pattern = subdomain_cfg.response_api_formatter.hostname;
    }
    return function (ctx, next) {
      switch (ctx.status) {
        case 404:
          let isAPI = false;
          if (hostname_pattern) {
            let reg = new RegExp(hostname_pattern);
            isAPI = reg.test(ctx.hostname);
          }
          if ((isAPI||hostname_pattern===undefined) && path_pattern) {
            let reg = new RegExp(path_pattern);
            isAPI = reg.test(ctx.originalUrl);
          }
          if (isAPI) { throw new BaseApiError(BaseApiError.NOT_FOUND_ERROR); }
          break
      }
      return next()
    }
  }
  