(Objective-C) OSS List Buckets (Alibaba Cloud)

See more Alibaba Cloud OSS Examples

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

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

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

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

// 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;
}