(Objective-C) Demonstrate S3_DownloadBytes

Demonstrates how to download a file into memory from the Amazon S3 service.

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#import <CkoHttp.h>
#import <NSString.h>
#import <CkoFileAccess.h>

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

CkoHttp *http = [[CkoHttp alloc] init];

http.AwsAccessKey = @"AWS_ACCESS_KEY";
http.AwsSecretKey = @"AWS_SECRET_KEY";

NSString *bucketName = @"chilkat.qa";
NSString *objectName = @"images/sea_creatures/starfish.jpg";
NSString *localFilePath = @"qa_output/starfish.jpg";

NSData jpgBytes;

jpgBytes = [http S3_DownloadBytes: bucketName objectName: objectName];
if (http.LastMethodSuccess != YES) {
    NSLog(@"%@",http.LastErrorText);
    return;
}

NSLog(@"%@",@"Download successful.");

CkoFileAccess *fac = [[CkoFileAccess alloc] init];
BOOL success = [fac WriteEntireFile: localFilePath fileData: jpgBytes];
NSLog(@"%@%d",@"File saved success = ",success);