Node.js

Compress Bytes to Base64 (or any other encoding)

See more Compression Examples

Compresses bytes to base64 or any other encoding. Also decompress to return the original. Node.js

NODEJS_PRELUDE

function chilkatExample() {

    var success = false;

    //  This example assumes the Chilkat API to have been previously unlocked.
    //  See Global Unlock Sample for sample code.

    //  First create some binary data to compress.
    var binData = new chilkat.BinData();

    var i;
    for (i = 1; i <= 16; i++) {
        binData.AppendEncoded("000102030405060708090A0B0C0D0E0F","hex");
    }

    var compress = new chilkat.Compression();
    compress.Algorithm = "deflate";
    compress.EncodingMode = "base64";

    uncompressedBytes = binData.GetBinary();

    //  Compress and return the compressed bytes in base64 format.
    var compressedBase64 = compress.CompressBytesENC(uncompressedBytes);
    console.log("compressed and base64 encoded: " + compressedBase64);

    //  Compress and return in hex format:
    compress.EncodingMode = "hex";
    var compressedHex = compress.CompressBytesENC(uncompressedBytes);
    console.log("compressed and hex encoded: " + compressedHex);

    //  Now decompress..
    var binData2 = new chilkat.BinData();

    //  Decompress the base64..
    compress.EncodingMode = "base64";
    uncompressedBytes = compress.DecompressBytesENC(compressedBase64);
    binData2.AppendBinary(uncompressedBytes);
    //  Show the uncompressed bytes in hex format:
    console.log(binData2.GetEncoded("hex"));
    console.log("--");

    //  Decompress the hex..
    compress.EncodingMode = "hex";
    uncompressedBytes = compress.DecompressBytesENC(compressedHex);
    binData2.Clear();
    binData2.AppendBinary(uncompressedBytes);
    //  Show the uncompressed bytes in hex format:
    console.log(binData2.GetEncoded("hex"));
    console.log("--");

}

chilkatExample();