COS offers AWS S3-compatible APIs. Therefore, after your data is migrated from S3 to COS, you can make your client application conveniently compatible with the COS service by simply modifying the configurations. This document describes how to adapt the S3 SDK to different development platforms. After adding adaptation, you can use the APIs of S3 SDK to access files in COS.
The following describes how to adapt the AWS SDK 2.14.2 for Android to COS. If COS is accessed from a device, a permanent key placed into the client code is at great risk of being leaked; therefore, you are recommended to connect to the STS service to obtain a temporary key. For more information, see Temporary Key Generation and Usage Guide.
When initiating an instance, you need to set the temporary key provider and Endpoint. Suppose that the bucket region is ap-guangzhou:
AmazonS3Client s3 = new AmazonS3Client(new AWSCredentialsProvider() {
@Override
public AWSCredentials getCredentials() {
// Here, the backend requests for a temporary key from STS
return new BasicSessionCredentials(
"<TempSecretID>", "<TempSecretKey>", "<STSSessionToken>"
);
}
@Override
public void refresh() {
//
}
});
s3.setEndpoint("cos.ap-guangzhou.myqcloud.com"); The following describes how to adapt the AWS SDK 2.10.2 for iOS to COS. If COS is accessed from a device, a permanent key placed into the client code is at great risk of being leaked; therefore, you are recommended to connect to the STS service to obtain a temporary key. For more information, see Temporary Key Generation and Usage Guide.
AWSCredentialsProvider protocol-(AWSTask<AWSCredentials *> *)credentials{
// Here, the backend requests for a temporary key from STS
AWSCredentials *credential = [[AWSCredentials alloc]initWithAccessKey:@"<TempSecretID>" secretKey:@"<TempSecretKey>" sessionKey:@"<STSSessionToken>" expiration:[NSDate dateWithTimeIntervalSince1970:1565770577]];
return [AWSTask taskWithResult:credential];
}
- (void)invalidateCachedTemporaryCredentials{
}EndpointSuppose that the bucket region is ap-guangzhou:
NSURL* bucketURL = [NSURL URLWithString:@"http://cos.ap-guangzhou.myqcloud.com"];
AWSEndpoint* endpoint = [[AWSEndpoint alloc] initWithRegion:AWSRegionUnknown service:AWSServiceS3 URL:bucketURL];
AWSServiceConfiguration* configuration = [[AWSServiceConfiguration alloc]
initWithRegion:AWSRegionUSEast2 endpoint:endpoint
credentialsProvider:[MyCredentialProvider new]]; // `MyCredentialProvider` implements the `AWSCredentialsProvider` protocol
[[AWSServiceManager defaultServiceManager] setDefaultServiceConfiguration:configuration];The following describes how to adapt the AWS SDK 2.509.0 for JS to COS.
When initiating an instance, set the Tencent Cloud key and Endpoint. Supposing that the bucket region is ap-guangzhou, the sample code is as follows:
var AWS = require('aws-sdk');
AWS.config.update({
accessKeyId: "<Tencent Cloud SecretID>",
secretAccessKey: "<Tencent Cloud SecretKey>",
region: "ap-guangzhou",
endpoint: 'https://cos.ap-guangzhou.myqcloud.com',
});
s3 = new AWS.S3({apiVersion: '2006-03-01'});The following describes how to adapt the AWS SDK 1.11.609 for Java to COS.
Below is an example of modifying the configuration and certificate files of AWS on Linux.
The default configuration file of the AWS SDK is typically located under the user directory. For more information, see Configuration and Certificate Files.
~/.aws/config):[default]
s3 =
addressing_style = virtual ~/.aws/credentials): [default]
aws_access_key_id = [Tencent Cloud SecretID]
aws_secret_access_key = [Tencent Cloud SecretKey] Endpoint in the codeSupposing that the bucket region is ap-guangzhou, the sample code is as follows:
AmazonS3 s3Client = AmazonS3ClientBuilder.standard()
.withEndpointConfiguration(new AwsClientBuilder.EndpointConfiguration(
"http://cos.ap-guangzhou.myqcloud.com",
"ap-guangzhou"))
.build();The following describes how to adapt the AWS SDK 1.9.205 for Python to COS.
Below is an example of modifying the configuration and certificate files of AWS on Linux.
The default configuration file of the AWS SDK is typically located under the user directory. For more information, see Configuration and Certificate Files.
~/.aws/config):[default]
s3 =
addressing_style = virtual ~/.aws/credentials): [default]
aws_access_key_id = [Tencent Cloud SecretID]
aws_secret_access_key = [Tencent Cloud SecretKey] Endpoint in the codeSuppose that the bucket region is ap-guangzhou:
client = boto3.client('s3', endpoint_url='"https://cos.ap-guangzhou.myqcloud.com"')The following describes how to adapt the AWS SDK 3.109.3 for PHP to COS.
Below is an example of modifying the configuration and certificate files of AWS on Linux.
The default configuration file of the AWS SDK is typically located under the user directory. For more information, see Configuration and Certificate Files.
~/.aws/config):[default]
s3 =
addressing_style = virtual ~/.aws/credentials): [default]
aws_access_key_id = [Tencent Cloud SecretID]
aws_secret_access_key = [Tencent Cloud SecretKey] Endpoint in the codeSuppose that the bucket region is ap-guangzhou:
$S3Client = new S3Client([
'region' => 'ap-guangzhou',
'version' => '2006-03-01',
'endpoint' => 'https://cos.ap-guangzhou.myqcloud.com'
]);
The following describes how to adapt the AWS SDK 3.3.104.12 for .NET to COS.
When initiating an instance, set the Tencent Cloud key and Endpoint. Suppose that the bucket region is ap-guangzhou:
string sAccessKeyId = "<Tencent Cloud SecretID>";
string sAccessKeySecret = "<Tencent Cloud SecretKey>";
string region = "ap-guangzhou";
var config = new AmazonS3Config() { ServiceURL = "https://cos." + region + ".myqcloud.com" };
var client = new AmazonS3Client(sAccessKeyId, sAccessKeySecret, config);
The following describes how to adapt the AWS SDK 1.21.9 for Go to COS.
Suppose that the bucket region is ap-guangzhou:
func newSession() (*session.Session, error) {
creds := credentials.NewStaticCredentials("<Tencent Cloud SecretID>", "<Tencent Cloud SecretKey>", "")
region := "ap-guangzhou"
endpoint := "http://cos.ap-guangzhou.myqcloud.com"
config := &aws.Config{
Region: aws.String(region),
Endpoint: &endpoint,
S3ForcePathStyle: aws.Bool(true),
Credentials: creds,
// DisableSSL: &disableSSL,
}
return session.NewSession(config)
}sess, _ := newSession()
service := s3.New(sess)
// Take uploading a file as an example
fp, _ := os.Open("s3_test.go")
defer fp.Close()
ctx, cancel := context.WithTimeout(context.Background(), time.Duration(30)*time.Second)
defer cancel()
service.PutObjectWithContext(ctx, &s3.PutObjectInput{
Bucket: aws.String("alangz-1250000000"),
Key: aws.String("test/s3_test.go"),
Body: fp,
})The following describes how to adapt the AWS SDK 1.7.68 for C++ to COS.
Below is an example of modifying the configuration and certificate files of AWS on Linux.
The default configuration file of the AWS SDK is typically located under the user directory. For more information, see Configuration and Certificate Files.
~/.aws/config):[default]
s3 =
addressing_style = virtual ~/.aws/credentials): [default]
aws_access_key_id = [Tencent Cloud SecretID]
aws_secret_access_key = [Tencent Cloud SecretKey] Endpoint in the codeSupposing that the bucket region is ap-guangzhou, the sample code is as follows:
Aws::Client::ClientConfiguration awsCC;
awsCC.scheme = Aws::Http::Scheme::HTTP;
awsCC.region = "ap-guangzhou";
awsCC.endpointOverride = "cos.ap-guangzhou.myqcloud.com";
Aws::S3::S3Client s3_client(awsCC);
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