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
11,883 op/s ⨠ bencode
5,457 op/s ⨠ bencoding
6,550 op/s ⨠ dht_bencode
5,405 op/s ⨠ bncode
10,978 op/s ⨠ dht
30,240 op/s ⨠ bencode
25,293 op/s ⨠ bencoding
26,220 op/s ⨠ dht_bencode
824 op/s ⨠ bncode
19,824 op/s ⨠ dht
Benchmarks run on an Intel Core2 CPU T9550 @ 2.66GHz with node v0.10.5
To run the benchmarks simply use
npm run-script bench
var bencode = require( 'bencode' )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:listli1ei2ei3ei4e6: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
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