Question

I have a Java backend that uses Inflater. I wish to feed data to it via Node.js.

Is there any equivalent to the Deflater class?

EDIT: I should clarify a little. I have tried using https://github.com/dankogai/js-deflate and then base64 encoding the result and passing it to a very simple Java program that base64 decodes it and tries to inflate it (creating a simple emulation of the backend), but I keep getting a exception:

java.util.zip.DataFormatException: unknown compression method
    at java.util.zip.Inflater.inflateBytes(Native Method)
    at java.util.zip.Inflater.inflate(Unknown Source)
    at java.util.zip.Inflater.inflate(Unknown Source)

And I know the Base64 encoding process is working correctly on both ends.

I should also note that I cannot change the Java backend.

Answer 1

Figured it out finally. You can use the zlib library in Node.js to do this. For example:

var zip = require('zlib');
zip.createDeflate({
    level: zip.Z_DEFAULT_COMPRESSION,
    windowBits: zip.MAX_WBITS
});

or

zip.deflate(buf,callback);