Download the contents of an attachment

//native

type Grist = {

  apiKey: string;

  host: string;

};

/**

 * Download the contents of an attachment

 *

 */

export async function main(auth: Grist, docId: string, attachmentId: string) {

  const url = new URL(

    `https://${auth.host}/api/docs/${docId}/attachments/${attachmentId}/download`,

  );

  const response = await fetch(url, {

    method: "GET",

    headers: {

      Authorization: "Bearer " + auth.apiKey,

    },

    body: undefined,

  });

  if (!response.ok) {

    const text = await response.text();

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

  }

  return await response.text();

}