Buy one-time addon

//native

type Zoho = {

  token: string;

};

/**

 * Buy one-time addon

 * Include a one-time addon in the subscription.

 */

export async function main(

  auth: Zoho,

  subscription_id: string,

  X_com_zoho_subscriptions_organizationid: string,

  body: {

    addons: {

      addon_code: string;

      quantity?: number;

      tags?: { tag_id?: number; tag_option_id?: number }[];

      item_custom_fields?: { label?: string; value?: string }[];

      price?: number;

      tax_id: {};

      tax_exemption_id?: {};

      tax_exemption_code?: {};

      product_type?: string;

    }[];

    exchange_rate?: never;

    coupon_code?: {};

    add_to_unbilled_charges?: false | true;

  },

) {

  const url = new URL(

    `https://www.zohoapis.com/billing/v1/subscriptions/${subscription_id}/buyonetimeaddon`,

  );

  const response = await fetch(url, {

    method: "POST",

    headers: {

      "X-com-zoho-subscriptions-organizationid":

        X_com_zoho_subscriptions_organizationid,

      "Content-Type": "application/json",

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

    },

    body: JSON.stringify(body),

  });

  if (!response.ok) {

    const text = await response.text();

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

  }

  return await response.json();

}