Code to recursively parse through JSON that was extra quoted/stringified in multiple nests.

recursiveJSONParse.js

// Function to recursively parse through JSON
// that was extra quoted during stringifying for
// nested levels. This function undoes all that
// work and makes JSON objects for every object
// that it can traverse.
function recursiveJSONParse(obj) {
  if (!obj)
    return obj;

  switch (typeof obj) {
    case "string":
      try {
	obj = JSON.parse(obj);
      } catch (ex) {
	return obj;
      }
      break;
    case "object":
      break;
    default:
      return obj;
  }

  if (typeof obj !== "object")
    return obj;

  const nonArray = obj.length === undefined;
  if (nonArray) {
    var keys = Object.keys(obj);
    keys.forEach(function(key) {
      obj[key] = recursiveJSONParse(obj[key]);
    });
  } else {
    for (i=0; i < obj.length; i++) {
      obj[i] = recursiveJSONParse(obj[i]);
    }
  }

  return obj;
}

function main() {
  const inJSON = require("./Transloadit.json");
  const util = require("util");

  var obj = recursiveJSONParse(inJSON);
  console.log(util.inspect(obj, {depth: 10}));
}

// If imported in a module, this part will be skipped
// otherwise when run directly e.g node <thisFile>
// that's only when main will be run.
if (process.argv.length >1 && process.argv[1] === __filename) {
  main();
}