Get attachment thumbnail

type Jira = {

  username: string;

  password: string;

  domain: string;

};

/**

 * Get attachment thumbnail

 * Returns the thumbnail of an attachment.

 */

export async function main(

  auth: Jira,

  id: string,

  redirect: string | undefined,

  fallbackToDefault: string | undefined,

  width: string | undefined,

  height: string | undefined

) {

  const url = new URL(

    `https://${auth.domain}.atlassian.net/rest/api/2/attachment/thumbnail/${id}`

  );

  for (const [k, v] of [

    ["redirect", redirect],

    ["fallbackToDefault", fallbackToDefault],

    ["width", width],

    ["height", height],

  ]) {

    if (v !== undefined && v !== "") {

      url.searchParams.append(k, v);

    }

  }

  const response = await fetch(url, {

    method: "GET",

    headers: {

      Authorization: "Basic " + btoa(`${auth.username}:${auth.password}`),

    },

    body: undefined,

  });

  if (!response.ok) {

    const text = await response.text();

    throw new Error(`${response.status} ${text}`);

  }

  return await response.json();

}