Get repository permissions for a user

type Github = {

  token: string;

};

/**

 * Get repository permissions for a user

 * Checks the repository permission of a collaborator. The possible repository permissions are `admin`, `write`, `read`, and `none`.

 */

export async function main(

  auth: Github,

  owner: string,

  repo: string,

  username: string

) {

  const url = new URL(

    `https://api.github.com/repos/${owner}/${repo}/collaborators/${username}/permission`

  );

  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();

}