List followers of a user

type Github = {

  token: string;

};

/**

 * List followers of a user

 * Lists the people following the specified user.

 */

export async function main(

  auth: Github,

  username: string,

  per_page: string | undefined,

  page: string | undefined

) {

  const url = new URL(`https://api.github.com/users/${username}/followers`);

  for (const [k, v] of [

    ["per_page", per_page],

    ["page", page],

  ]) {

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

      url.searchParams.append(k, v);

    }

  }

  const response = await fetch(url, {

    method: "GET",

    headers: {

      Authorization: "Bearer " + auth.token,

    },

    body: undefined,

  });

  if (!response.ok) {

    const text = await response.text();

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

  }

  return await response.json();

}