Retrieve a QR Code image

//native

type Bitly = {

  token: string;

};

/**

 * Retrieve a QR Code image

 * Get the image of a given QR Code.

 */

export async function main(

  auth: Bitly,

  qrcode_id: string,

  format: "svg" | "png" | undefined,

  Accept: string,

) {

  const url = new URL(

    `https://api-ssl.bitly.com/v4/qr-codes/${qrcode_id}/image`,

  );

  for (const [k, v] of [["format", format]]) {

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

      url.searchParams.append(k, v);

    }

  }

  const response = await fetch(url, {

    method: "GET",

    headers: {

      Accept: Accept,

      Authorization: "Bearer " + auth.token,

    },

    body: undefined,

  });

  if (!response.ok) {

    const text = await response.text();

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

  }

  return await response.json();

}