gistfile2.txt

test.js

var db = require('riak-js').getClient(),
  assert = require('assert'),
  buf1 = new Buffer('bloooooo lala lalala lalala lala lalala lalala lala lalala lalala lala lalala lalala lala uuuuuuhhhh'),
  buf2 = new Buffer('THIS ONLY OVERWRITES THE FIRST 40 BYTES')

db.saveLarge('text3', buf1, function(err, data, meta) {

  // first save callback, wait for 1 sec
  setTimeout(function() {
    
    db.saveLarge('text3', buf2, meta, function(err) {

      // second save callback, wait for 1 sec
      setTimeout(function() {
        
        db.getLarge('text3', function(err, data) {
          // first read callback, assert data is what was saved last
          assert.equal(data.toString(), buf2.toString())
        })
        
      }, 1000)
    
    })
    
  }, 1000)
})