Get contextual information for a user

type Github = {

  token: string;

};

/**

 * Get contextual information for a user

 * Provides hovercard information when authenticated through basic auth or OAuth with the `repo` scope.

 */

export async function main(

  auth: Github,

  username: string,

  subject_type:

    | "organization"

    | "repository"

    | "issue"

    | "pull_request"

    | undefined,

  subject_id: string | undefined

) {

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

  for (const [k, v] of [

    ["subject_type", subject_type],

    ["subject_id", subject_id],

  ]) {

    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();

}