Check if a user can be assigned to a issue

type Github = {

  token: string;

};

/**

 * Check if a user can be assigned to a issue

 * Checks if a user has permission to be assigned to a specific issue.

If the `assignee` can be assigned to this issue, a `204` status code with no content is returned.

Otherwise a `404` status code is returned.

 */

export async function main(

  auth: Github,

  owner: string,

  repo: string,

  issue_number: string,

  assignee: string

) {

  const url = new URL(

    `https://api.github.com/repos/${owner}/${repo}/issues/${issue_number}/assignees/${assignee}`

  );

  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.text();

}