Nodejs bindings to the snappy compression library

npm install snappy

var snappy = require('snappy')

snappy.compress('beep boop', function (err, compressed) {
  console.log('compressed is a Buffer', compressed)
  // return it as a string
  snappy.uncompress(compressed, { asBuffer: false }, function (err, original) {
    console.log('the original String', original)
  })
})

compressed is a Buffer <SlowBuffer 09 20 62 65 65 70 20 62 6f 6f 70>
the original String beep boop

Compress input, which can be a Buffer or a String.

The callback function will be called with a single error if the operation failed for any reason. If successful the first argument will be null and the second argument will be the value as a ``Buffer`.

The synchronous version of snappy.compress, returns the compressed value.

Uncompress compressed and call callback with err and decompressed.

• 'asBuffer' (boolean, default: true): Used to determine whether to return the value of the entry as a String or a Node.js Buffer object. Note that converting from a Buffer to a String incurs a cost so if you need a String (and the value can legitimately become a UFT8 string) then you should fetch it as one with asBuffer: true and you'll avoid this conversion cost.

The callback function will be called with a single error if the operation failed for any reason. If successful the first argument will be null and the second argument will be the value as a String or Buffer depending on the asBuffer option.

The synchronous version of snappy.uncompress, returns the uncompressed value.

Check is input is a valid compressed Buffer.

The callback function will be called with a single error if the operation failed for any reason and the second argument will be true if input is a valid snappy compressed Buffer, false otherwise.

The synchronous version of snappy.isValidCompressed, returns a boolean indicating if input was correctly compressed or not.

For a streaming interface to snappy, please take a look at snappy-stream

This is the result I'm seeing on my laptop (Macbook Air from 2012) running node benchmark

  snappy.compress() x 479 ops/sec ±0.99% (80 runs sampled)
  zlib.gzip() x 289 ops/sec ±1.66% (86 runs sampled)
  snappy.uncompress() x 652 ops/sec ±0.86% (43 runs sampled)
  zlib.gunzip() x 559 ops/sec ±1.65% (64 runs sampled)

Copyright (c) 2011 - 2015 David Björklund & contributors

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