A simple stream-oriented ed2k hasher for nodejs.

npm install node-ed2k

Require the module:

var ed2k = require('node-ed2k');

var file_stream = fs.createReadStream('/path/to/file');
ed2k.ed2k_hash_for_stream(file_stream, function(err, hash) {
    if (err !== null) {
        console.log(hash);
    }
});

ed2k.ed2k_hash_for_filepath('/path/to/file', function(err, hash) {
    if (err !== null) {
        console.log(hash);
    }
});

stream - stream (http://nodejs.org/api/stream.html)

callback - function(err, ed2k_uri)

    err - null if success, !null if error, passed from fs modules

    ed2k_uri - String if success, undefined if err

path - String, relative or absolute path to a file

callback - function(err, ed2k_uri)

    err - null if success, !null if error, passed from fs modules

    ed2k_uri - String if success, undefined if err

hash - String, string hash of file

filename - String, name of file, path not required

size - String/Int, size of file

returns: String, ed2k uri

path - String, relative or absolute path to a file

callback - function(err, ed2k_uri)

    err - null if success, !null if error, passed from fs modules

    ed2k_uri - String if success, undefined if err

var ed2k = require('node-ed2k');

ed2k.ed2k_hash_for_filepath('/path/to/file', function(err, hash) {
    if (err !== null) {
        console.log(hash);
    }
});