Get a thread subscription for the authenticated user

type Github = {

  token: string;

};

/**

 * Get a thread subscription for the authenticated user

 * This checks to see if the current user is subscribed to a thread. You can also [get a repository subscription](https://docs.github.com/rest/reference/activity#get-a-repository-subscription).

Note that subscriptions are only generated if a user is participating in a conversation--for example, they've replied to the thread, were **@mentioned**, or manually subscribe to a thread.

 */

export async function main(auth: Github, thread_id: string) {

  const url = new URL(

    `https://api.github.com/notifications/threads/${thread_id}/subscription`

  );

  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();

}