react-native-surveys/Forms/utils/base64.js

Build your own forms, surveys and polls for your React Native apps.

import base64 from "./react-native-base64";
export function encodeData(data) {
  const decoded = base64.encode(data);
  return reverseString(decoded.replace(/=/g, "").replace(/\0/g, ""));
}
export function decodeData(data) {
  const parameters = base64.decode(reverseString(data));
  return queryStringToJSON(parameters.replace(/\0/g, ""));
}

function reverseString(str) {
  return str
    .split("")
    .reverse()
    .join("");
}

export function jsonToQueryString(json) {
  return Object.keys(json)
    .map(function(key) {
      return encodeURIComponent(key) + "=" + encodeURIComponent(json[key]);
    })
    .join("&");
}

function queryStringToJSON(string) {
  let pairs = string.split("&");
  let result = {};
  pairs.forEach(function(pair) {
    pair = pair.split("=");
    result[pair[0]] = decodeURIComponent(pair[1] || "");
  });
  return JSON.parse(JSON.stringify(result));
}