public.js

//stripeAPI.js

import {fetch} from 'wix-fetch'; 

export async function createToken(card) {
  const apiKey = "PUBLIC_API_KEY";
  const response = await fetch("https://api.stripe.com/v1/tokens", {
  method: 'post',
  headers: {
  "Content-Type": "application/x-www-form-urlencoded",
  "Authorization": "Bearer " + apiKey
  },
  body: card
  });
  if (response.status >= 200 && response.status < 300) {
  const json = await response.json();
  return json.id;
  }
  const responseText = await response.text();
  return response.status;
}

export function encodeCard(card){
  let encoded = "";
  for (let [k, v] of Object.entries(card)) {
  encoded = encoded.concat("card[", k, "]=", encodeURI(v), "&");
}
  return encoded.substr(0, encoded.length - 1);
}