Decoding mongodump's stderr

Question

I'm trying to mongodump my DB from my Node.js code:

var args = ['--db', 'DBName', '--out', backupDirectory];
        var mongodump = spawn('/usr/local/bin/mongodump', args);

        mongodump.stdout.on('data', function (data) {
           console.log(data);
        });
        mongodump.stderr.on('data', function (data) {
            console.log(data);
        });
        mongodump.on('exit', function (code: number) {
            console.log('mongodump exited with code ' + code);
        });

mongodump.stderr is reached. There, I get a byte array containing 155 bytes.

How can I decode the byte array into a readable message? What's the format that the stderr is encoded to?

Both the DB and my app run on the same machine whose OS is Ubuntu 14.

Answer 1

您可以尝试使用data.toString（）。