A node library for encoding and decoding bencoded data, according to the BitTorrent specification.
from Wikipedia:
Bencode (pronounced like B encode) is the encoding used by the peer-to-peer file sharing system BitTorrent for storing and transmitting loosely structured data.
It supports four different types of values:
- byte strings
- integers
- lists
- dictionaries
Bencoding is most commonly used in torrent files. These metadata files are simply bencoded dictionaries.
Install with npm
npm install bencode
34,832 op/s » bencode
17,475 op/s » bencoding
15,947 op/s » dht_bencode
15,036 op/s » bncode
21,577 op/s » dht
50,460 op/s » bencode
45,318 op/s » bencoding
60,672 op/s » dht_bencode
2,928 op/s » bncode
49,488 op/s » dht
Benchmarks run on an 2,6 GHz Intel Core i5 with node 5.5.0
To run the benchmarks simply use
npm run bench
var bencode = require( 'bencode' )You can also use node-bencode with browserify to be able to use it in a lot of modern browsers.
var data = {
string: 'Hello World',
integer: 12345,
dict: {
key: 'This is a string within a dictionary'
},
list: [ 1, 2, 3, 4, 'string', 5, {} ]
}
var result = bencode.encode( data )d4:dictd3:key36:This is a string within a dictionarye7:integeri12345e4:listli1ei2ei3ei4e6:stringi5edee6:string11:Hello Worlde
var data = new Buffer( 'd6:string11:Hello World7:integeri12345e4:dictd3:key36:This is a string within a dictionarye4:litli1ei2ei3ei4e6:stringi5edeee' )
var result = bencode.decode( data ){
string: <Buffer 48 65 6c 6c 6f 20 57 6f 72 6c 64>,
integer: 12345,
dict: {
key: <Buffer 54 68 69 73 20 69 73 20 61 20 73 74 72 69 6e 67 20 77 69 74 68 69 6e 20 61 20 64 69 63 74 69 6f 6e 61 72 79>
},
list: [ 1, 2, 3, 4, <Buffer 73 74 72 69 6e 67>, 5, {} ]
}Automagically convert bytestrings to strings:
var result = bencode.decode( data, 'utf8' ){
string: 'Hello World',
integer: 12345,
dict: {
key: 'This is a string within a dictionary'
},
list: [ 1, 2, 3, 4, 'string', 5, {} ]
}
Buffer|Array|String|Object|Numberdata
Returns Buffer
BufferdataStringencoding
If encoding is set, bytestrings are
automatically converted to strings.
Returns Object | Array | Buffer | String | Number