Convert json data to webtorrent and seed, then download json from webtorrent

0-json_to_webtorrent.js

//jQuery and Webtorrent (https://webtorrent.io/) dependencies

var json_source_url = ""; //json data source
var filename = ""; //filename.json

$.getJSON(json_source_url, function( data ) {

  var jsonstring = JSON.stringify(data);
  var blob = new Blob([jsonstring], {type: "application/json"});
  var client = new WebTorrent()
  
  client.seed(blob, {name: filename}, function (torrent) {
    console.log('Client is seeding ' + torrent.infoHash);
  })   
	
});

1-webtorrent_to_json.js

//jQuery and Webtorrent dependencies, also requires decodeUtf8 function

var infohash = ""; //json torrent infohash
var client = new WebTorrent()
var magnetUri = 'magnet:?xt=urn:btih:'+infohash;

client.add(magnetUri, function (torrent) {  
  torrent.files.forEach(function (file) { 
    file.getBuffer(function (err, buffer) {
	if (err) throw err
	var jsonstring = decodeUtf8(buffer);
	var data = JSON.parse(jsonstring);
				    
	console.log(data); //json data
				  
	client.destroy();
    })
  })
})

2-decodeUtf8.js

// from https://gist.github.com/boushley/5471599

function decodeUtf8(arrayBuffer) {
  var result = "";
  var i = 0;
  var c = 0;
  var c1 = 0;
  var c2 = 0;

  var data = new Uint8Array(arrayBuffer);

  // If we have a BOM skip it
  if (data.length >= 3 && data[0] === 0xef && data[1] === 0xbb && data[2] === 0xbf) {
    i = 3;
  }

  while (i < data.length) {
    c = data[i];

    if (c < 128) {
      result += String.fromCharCode(c);
      i++;
    } else if (c > 191 && c < 224) {
      if( i+1 >= data.length ) {
        throw "UTF-8 Decode failed. Two byte character was truncated.";
      }
      c2 = data[i+1];
      result += String.fromCharCode( ((c&31)<<6) | (c2&63) );
      i += 2;
    } else {
      if (i+2 >= data.length) {
        throw "UTF-8 Decode failed. Multi byte character was truncated.";
      }
      c2 = data[i+1];
      c3 = data[i+2];
      result += String.fromCharCode( ((c&15)<<12) | ((c2&63)<<6) | (c3&63) );
      i += 3;
    }
  }
  return result;
}