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Asked: 2026-05-17T22:39:09+00:00

I come into a trouble implementing a Flex 3.0.0 client that receives compressed HTTP

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I come into a trouble implementing a Flex 3.0.0 client that receives compressed HTTP body from server via a socket HTTP library (not class HTTPService ).

First it seems that nginx supports ONLY gzip compression with gzip on;. (Correct me if I’m wrong.) So, add HTTP header of Accept-Encoding: gzip to request.

Then I get a compressed ByteArray from HTTP response with header Content-Encoding: gzip.

The problem here is to decompress the compressed data, namely the HTTP body, correctly.

In later version of Flex, there is a function deflate in ByteArray. But it is absent in Flex 3.0.0. Upgrading to higher version is not an option as it would make existing applications unstable with some new seen and unseen bugs.

Is there an alternative way, code or library, to decompress the gzip data in ByteArray?

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1 Answer

  1. Editorial Team

    The ByteArray methods that are needed aren’t tied to a particular version of Flex. (The ByteArray class isn’t a Flex class — it’s part of the built-in classes in Flash Player and AIR.) So even if your app uses Flex 3, if you can target Flash Player 10+ or AIR 1+ then you should be able to use that library.

    If that’s absolutely not possible, there is another possibility but it will take some work.

    This ActionScript library is created for working with .zip files:
    http://nochump.com/blog/archives/15

    However, it doesn’t use the built-in ByteArray compression but instead includes an ActionScript implementation of the flate algorithm. So you could (theoretically) use the Inflater class from that library in place of the call to ByteArray.uncompress() in the GZip library mentioned by Chubbard

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