Update pricing

//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;

}

/**

 * Update pricing

 * Updates pricing for a plan. For example, you can update a regular billing cycle from $5 per month to $7 per month.

 */

export async function main(

  auth: Paypal,

  id: string,

  body: {

    pricing_schemes: {

      billing_cycle_sequence: number;

      pricing_scheme: {

        version?: number;

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

        pricing_model?: "VOLUME" | "TIERED";

        tiers?: {

          starting_quantity: string;

          ending_quantity?: string;

          amount: { currency_code: string; value: string };

        }[];

        create_time?: string;

        update_time?: string;

      };

    }[];

  },

) {

  const token = await getToken(auth);

  const url = new URL(

    `https://api-m.paypal.com/v1/billing/plans/${id}/update-pricing-schemes`,

  );

  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();

}