umi-game-template/src/utils/tools/request_helper.ts

function checkStatus(response: any) {
  if (response.status >= 200 && response.status < 300) {
    return response;
  }

  const error = new Error(response.statusText);
  throw error;
}

export function parseUrl(obj: any): string {
  let result:string = "?";
  for (let key in obj) {
    if (obj[key]) {
      if (result === "?") {
        result += `${key}=${obj[key]}`;
      } else {
        result += `&${key}=${obj[key]}`;
      }
    }
  }
  if (result === "?") return "";
  return result;
}

/**
 * Requests a URL, returning a promise.
 *
 * @param  {string} url       The URL we want to request
 * @param  {object} [options] The options we want to pass to "fetch"
 * @return {object}           An object containing either "data" or "err"
 */
export default async function request(url: string, options: any = {}): Promise<any> {
  let data, response: any;
  try {
    response = await fetch(url, { credentials: 'include', ...options });

    checkStatus(response);
    if (!response.body) return true;
    data = await response.clone().json();
  } catch (err) {
    if (response && response.clone) {
      data = await response.clone().text();
    }
    return false;
  }

  return data;
}