Make a snapshot of a search-index

gistfile1.js

var si = require('search-index')({logLevel:false});
var fs = require('fs');

si.snapShot(function(rs) {
  rs.pipe(fs.createWriteStream('backup.gz'))
    .on('close', function() {
      console.log('great success dear leader')
    })
    .on('error', function() {
      console.log('err')
    });
});