Objective-C

OSS List Buckets (Alibaba Cloud)

See more Alibaba Cloud OSS Examples

Demonstrates how to list AliCloud OSS buckets.

The Chilkat S3 functions in the HTTP class are compatible with Alibaba Cloud's OSS service.

Objective-C

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

BOOL success = NO;

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

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

// Insert your AccessKey ID here:
http.AwsAccessKey = @"access-key";

// Insert your AccessKey Secret here:
http.AwsSecretKey = @"secret-key";

// See Alibaba Object Storage Service Regions and Endpoints
http.AwsEndpoint = @"oss-us-west-1.aliyuncs.com";

NSString *bucketsXml = [http S3_ListBuckets];

if (http.LastMethodSuccess != YES) {
    NSLog(@"%@",http.LastErrorText);
    return;
}

CkoXml *xml = [[CkoXml alloc] init];
[xml LoadXml: bucketsXml];
NSLog(@"%@",[xml GetXml]);

// Use this online tool to generate parsing code from sample XML: 
// Generate Parsing Code from XML

// Sample output:

// <?xml version="1.0" encoding="UTF-8"?>
// <ListAllMyBucketsResult xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
//     <Owner>
//         <ID>5035535379748121</ID>
//         <DisplayName>5035535379748121</DisplayName>
//     </Owner>
//     <Buckets>
//         <Bucket>
//             <Comment/>
//             <CreationDate>2021-10-28T21:30:56.000Z</CreationDate>
//             <ExtranetEndpoint>oss-us-east-1.aliyuncs.com</ExtranetEndpoint>
//             <IntranetEndpoint>oss-us-east-1-internal.aliyuncs.com</IntranetEndpoint>
//             <Location>oss-us-east-1</Location>
//             <Name>chilkat</Name>
//             <Region>us-east-1</Region>
//             <StorageClass>STANDARD</StorageClass>
//         </Bucket>
//         <Bucket>
//             <Comment/>
//             <CreationDate>2021-10-29T00:12:54.000Z</CreationDate>
//             <ExtranetEndpoint>oss-us-west-1.aliyuncs.com</ExtranetEndpoint>
//             <IntranetEndpoint>oss-us-west-1-internal.aliyuncs.com</IntranetEndpoint>
//             <Location>oss-us-west-1</Location>
//             <Name>chilkat-testbucket</Name>
//             <Region>us-west-1</Region>
//             <StorageClass>STANDARD</StorageClass>
//         </Bucket>
//         <Bucket>
//             <Comment/>
//             <CreationDate>2021-10-28T23:52:10.000Z</CreationDate>
//             <ExtranetEndpoint>oss-us-west-1.aliyuncs.com</ExtranetEndpoint>
//             <IntranetEndpoint>oss-us-west-1-internal.aliyuncs.com</IntranetEndpoint>
//             <Location>oss-us-west-1</Location>
//             <Name>chilkat2</Name>
//             <Region>us-west-1</Region>
//             <StorageClass>STANDARD</StorageClass>
//         </Bucket>
//     </Buckets>
// </ListAllMyBucketsResult>

NSString *CreationDate = 0;
NSString *ExtranetEndpoint = 0;
NSString *IntranetEndpoint = 0;
NSString *Location = 0;
NSString *Name = 0;
NSString *Region = 0;
NSString *StorageClass = 0;

NSString *ListAllMyBucketsResult_xmlns = [xml GetAttrValue: @"xmlns"];
NSString *ID = [xml GetChildContent: @"Owner|ID"];
NSString *DisplayName = [xml GetChildContent: @"Owner|DisplayName"];
int i = 0;
int count_i = [[xml NumChildrenHavingTag: @"Buckets|Bucket"] intValue];
while (i < count_i) {
    xml.I = [NSNumber numberWithInt: i];
    CreationDate = [xml GetChildContent: @"Buckets|Bucket[i]|CreationDate"];
    ExtranetEndpoint = [xml GetChildContent: @"Buckets|Bucket[i]|ExtranetEndpoint"];
    IntranetEndpoint = [xml GetChildContent: @"Buckets|Bucket[i]|IntranetEndpoint"];
    Location = [xml GetChildContent: @"Buckets|Bucket[i]|Location"];
    Name = [xml GetChildContent: @"Buckets|Bucket[i]|Name"];
    Region = [xml GetChildContent: @"Buckets|Bucket[i]|Region"];
    StorageClass = [xml GetChildContent: @"Buckets|Bucket[i]|StorageClass"];
    i = i + 1;
}