type Trello = {

  key: string;

  token: string;

};

/**

 * Batch Requests

 * Make up to 10 GET requests in a single, batched API call.

 */

export async function main(auth: Trello, urls: string | undefined) {

  const url = new URL(`https://api.trello.com/1/batch`);

  for (const [k, v] of [

    ["urls", urls],

    ["key", auth.key],

    ["token", auth.token],

  ]) {

    if (v !== undefined && v !== "") {

      url.searchParams.append(k, v);

    }

  }

  const response = await fetch(url, {

    method: "GET",

    headers: {

      Authorization: undefined,

    },

    body: undefined,

  });

  if (!response.ok) {

    const text = await response.text();

    throw new Error(`${response.status} ${text}`);

  }

  return await response.text();

}