Objective-C

S3 Find Bucket Region

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Demonstrates how to find out the region of an S3 bucket. Objective-C

#import <CkoRest.h>
#import <CkoAuthAws.h>
#import <NSString.h>
#import <CkoXml.h>

BOOL success = NO;

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

CkoRest *rest = [[CkoRest alloc] init];

//  Connect to the Amazon AWS REST server using the correct region (in this example, "us-west-2")
BOOL bTls = YES;
int port = 443;
BOOL bAutoReconnect = YES;
success = [rest Connect: @"s3.amazonaws.com" port: [NSNumber numberWithInt: port] tls: bTls autoReconnect: bAutoReconnect];

//  Provide AWS credentials for the REST call.
CkoAuthAws *authAws = [[CkoAuthAws alloc] init];
authAws.AccessKey = @"AWS_ACCESS_KEY";
authAws.SecretKey = @"AWS_SECRET_KEY";
authAws.ServiceName = @"s3";
success = [rest SetAuthAws: authAws];

//  The bucket name we want to know about is set in the HOST header.
//  In this example, we want to find the region for the "chilkat.qa" bucket.
rest.Host = @"chilkat.qa.s3.amazonaws.com";

//  Send the GET request to query the bucket location.
NSString *strResult = [rest FullRequestNoBody: @"GET" uriPath: @"/?location"];
if (rest.LastMethodSuccess != YES) {
    NSLog(@"%@",rest.LastErrorText);
    return;
}

int responseStatusCode = [rest.ResponseStatusCode intValue];
NSLog(@"%@%d",@"Response status code = ",responseStatusCode);
if (responseStatusCode != 200) {
    NSLog(@"%@",rest.ResponseHeader);
    NSLog(@"%@",strResult);
    NSLog(@"%@",@"Failed.");
    return;
}

NSLog(@"%@",strResult);

//  The result contains XML like this:
//  <?xml version="1.0" encoding="UTF-8"?>
//  <LocationConstraint xmlns="http://s3.amazonaws.com/doc/2006-03-01/">us-west-2</LocationConstraint>

//  Get the "us-west-2" from the XML
CkoXml *xml = [[CkoXml alloc] init];
success = [xml LoadXml: strResult];
NSLog(@"%@%@",@"region = ",xml.Content);