Objective-C

Gzip Compress In Memory and Base64 Encode

See more Gzip Examples

Demonstrates how to Gzip compress in-memory data and then encode the compressed data to base64. Objective-C

#import <CkoGzip.h>
#import <CkoBinData.h>
#import <NSString.h>

BOOL success = NO;

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

CkoGzip *gzip = [[CkoGzip alloc] init];

// This example will load a file into the fileData object.
// Your application might load fileData from other sources..
CkoBinData *fileData = [[CkoBinData alloc] init];
success = [fileData LoadFile: @"qa_data/xml/hamlet.xml"];
if (success != YES) {
    NSLog(@"%@",@"Failed to load file.");
    return;
}

// In-place compress the contents of fileData
success = [gzip CompressBd: fileData];
if (success != YES) {
    NSLog(@"%@",gzip.LastErrorText);
    return;
}

// Get the base64 encoded compressed data (in a single line).
NSString *strBase64 = [fileData GetEncoded: @"base64"];
NSLog(@"%@",strBase64);
NSLog(@"%@",@"--------");

// To get the base64 in multiple lines, as it might appear in MIME,
// use "base64-mime".
NSString *strBase64MultiLine = [fileData GetEncoded: @"base64-mime"];
NSLog(@"%@",strBase64MultiLine);