List installations for the authenticated app

type Github = {

  token: string;

};

/**

 * List installations for the authenticated app

 * You must use a [JWT](https://docs.github.com/apps/building-github-apps/authenticating-with-github-apps/#authenticating-as-a-github-app) to access this endpoint.

The permissions the installation has are included under the `permissions` key.

 */

export async function main(

  auth: Github,

  per_page: string | undefined,

  page: string | undefined,

  since: string | undefined,

  outdated: string | undefined

) {

  const url = new URL(`https://api.github.com/app/installations`);

  for (const [k, v] of [

    ["per_page", per_page],

    ["page", page],

    ["since", since],

    ["outdated", outdated],

  ]) {

    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();

}