Make offer to resolve dispute

//native

type Paypal = {

  clientId: string;

  clientSecret: string;

};

async function getToken(auth: Paypal): Promise<string> {

  const url = new URL(`https://api-m.paypal.com/v1/oauth2/token`);

  const response = await fetch(url, {

    method: "POST",

    headers: {

      Authorization: `Basic ${btoa(`${auth.clientId}:${auth.clientSecret}`)}`,

    },

    body: new URLSearchParams({

      grant_type: "client_credentials",

    }),

  });

  if (!response.ok) {

    const text = await response.text();

    throw new Error(`Could not get token: ${response.status} ${text}`);

  }

  const json = await response.json();

  return json.access_token;

}

/**

 * Make offer to resolve dispute

 * Makes an offer to the other party to resolve a dispute, by ID. To make this call, the stage in the dispute lifecycle must be `INQUIRY`. If the customer accepts the offer, PayPal automatically makes a refund. Allowed offer_type values for the request is available in dispute details allowed response options object.

 */

export async function main(

  auth: Paypal,

  id: string,

  body: {

    note: string;

    offer_amount?: { currency_code: string; value: string };

    return_shipping_address?: {

      address_line_1?: string;

      address_line_2?: string;

      address_line_3?: string;

      admin_area_4?: string;

      admin_area_3?: string;

      admin_area_2?: string;

      admin_area_1?: string;

      postal_code?: string;

      country_code: string;

      address_details?: {

        street_number?: string;

        street_name?: string;

        street_type?: string;

        delivery_service?: string;

        building_name?: string;

        sub_building?: string;

      };

    };

    invoice_id?: string;

    offer_type:

      | "REFUND"

      | "REFUND_WITH_RETURN"

      | "REFUND_WITH_REPLACEMENT"

      | "REPLACEMENT_WITHOUT_REFUND";

  },

) {

  const token = await getToken(auth);

  const url = new URL(

    `https://api-m.paypal.com/v1/customer/disputes/${id}/make-offer`,

  );

  const formData = new FormData();

  for (const [k, v] of Object.entries(body)) {

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

      formData.append(k, String(v));

    }

  }

  const response = await fetch(url, {

    method: "POST",

    headers: {

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

      Authorization: "Bearer " + token,

    },

    body: JSON.stringify(body),

  });

  if (!response.ok) {

    const text = await response.text();

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

  }

  return await response.json();

}