Add attachment to an invoice

//native

type Zoho = {

  token: string;

};

/**

 * Add attachment to an invoice

 * Attach a file to an invoice.

 */

export async function main(

  auth: Zoho,

  invoice_id: string,

  organization_id: string | undefined,

  can_send_in_mail: string | undefined,

  attachment: string | undefined,

) {

  const url = new URL(

    `https://www.zohoapis.com/inventory/v1/invoices/${invoice_id}/attachment`,

  );

  for (const [k, v] of [

    ["organization_id", organization_id],

    ["can_send_in_mail", can_send_in_mail],

    ["attachment", attachment],

  ]) {

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

      url.searchParams.append(k, v);

    }

  }

  const response = await fetch(url, {

    method: "POST",

    headers: {

      Authorization: "Zoho-oauthtoken " + auth.token,

    },

    body: undefined,

  });

  if (!response.ok) {

    const text = await response.text();

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

  }

  return await response.json();

}