How to do Mongodb Backup with node js

I am wirting a mongodb auto backup code but i am stuck in some error: 'mongodump' is not recognized as an internal or external command. can anyone help me out?

or is there another way to get auto backup with mongodb

exports.dbAutoBackUp = () => {

        let cmd =
        'mongodump --host ' +
        dbOptions.host +
        ' --port ' +
        dbOptions.port +
        ' --db ' +
        dbOptions.database +
        ' --username ' +
        dbOptions.user +
        ' --password ' +
        dbOptions.pass +
        ' --out ' +
        newBackupPath;

        exec(cmd, (error, stdout, stderr) => {
            console.log("Error : "+error)
            console.log("Error 1: "+stdout)
            console.log("Error 2: "+stderr)
        if (this.empty(error)) {
            // check for remove old backup after keeping # of days given in configuration.
            if (dbOptions.removeOldBackup == true) {
            if (fs.existsSync(oldBackupPath)) {
                exec('rm -rf ' + oldBackupPath, err => {
                    console.log(err);
                });
            }
            }
        }
        });
    }
};