A node library for encoding and decoding bencoded data, according to the BitTorrent specification.
bencode.js uses indutny/bn.js as Integer because JavaScript support only 53-bit precise integers :(
var bencode = require('bencode.js')
var data = {
string: new Buffer('Hey there!'),
integer: new bencode.BN(42),
dict: { key: new Buffer('dict-key-string') },
list: [ new bencode.BN(1), new Buffer('str'), new bencode.BN(5), {}, [] ]
}
console.log(bencode.encodingLength(data))
// 90
var encoded = bencode.encode(data)
console.log(encoded.toString())
// d4:dictd3:key15:dict-key-stringe7:integeri42e4:listli1e3:stri5edelee6:string10:Hey there!e
console.log(bencode.decode(encoded))
// { dict: { key: <Buffer 64 69 63 74 2d 6b 65 79 2d 73 74 72 69 6e 67> },
// integer: <BN: 2a>,
// list: [ <BN: 1>, <Buffer 73 74 72>, <BN: 5>, {}, [] ],
// string: <Buffer 48 65 79 20 74 68 65 72 65 21> }
Torrent file for benchmark: Fedora-Live-MATE_Compiz-x86_64-23.torrent
$ cd benchmark
$ npm i
...
$ npm start
decode
33,311 op/s » bencode
34,559 op/s » bencode.js
23,026 op/s » bencoding
33,448 op/s » dht_bencode
546 op/s » bncode
27,194 op/s » dht
encode
11,413 op/s » bencode
11,562 op/s » bencode.js
6,444 op/s » bencoding
8,108 op/s » dht_bencode
5,586 op/s » bncode
10,278 op/s » dht
MIT
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