node package manager



A layer between your unserialized data and the file system.


FileCache(parse, serialize)

load(fname, next)

next is called with (err, data)

  • check cache
    • if nothing's there or if cache is older than the file, load and parse the file, updating the cache
    • otherwise give back the data as you received it

save(fname, data, next)

next is called with (err)

  • serialize the data
  • save it to the file
  • update the cache


where parse and serialize are filled in as JSON.parse and JSON.stringify