Configuring Lifecycle Management

If you have any questions during the development, post them on the Issues page of GitHub. For details about parameters and usage of each API, see the API Reference.

When uploading an object or initializing a multipart upload, you can directly set the expiration time for the object. Sample code is as follows:

// Initialize configuration parameters.
ObsConfig config = new ObsConfig();
config.Endpoint = "https://your-endpoint";
// Hard-coded or plaintext AK/SK are risky. For security purposes, encrypt your AK/SK and store them in the configuration file or environment variables. In this example, the AK/SK are stored in environment variables for identity authentication. Before running this example, configure environment variables AccessKeyID and SecretAccessKey.
// Obtain an AK/SK pair on the management console. For details, see https://support.huaweicloud.com/intl/en-us/usermanual-ca/ca_01_0003.html.
string accessKey= Environment.GetEnvironmentVariable("AccessKeyID", EnvironmentVariableTarget.Machine);
string secretKey= Environment.GetEnvironmentVariable("SecretAccessKey", EnvironmentVariableTarget.Machine);
// Create an instance of ObsClient.
ObsClient client = new ObsClient(accessKey, secretKey, config);

try
{
    PutObjectRequest request = new PutObjectRequest()
    {
        BucketName = "bucketname",
        ObjectKey = "objectname",
        FilePath = "localfile",// Path of the local file uploaded. The file name must be specified.
        Expires = 30 // When uploading an object, set the object to expire after 30 days.
    };
    PutObjectResponse response = client.PutObject(request);
    Console.WriteLine("put object response: {0}", response.StatusCode);

    InitiateMultipartUploadRequest initiateRequest = new InitiateMultipartUploadRequest
    {
        BucketName = "bucketname",
        ObjectKey = "objectname",
        // When initializing a multipart upload, set the object to expire 60 days after combination.
        Expires = 60
    };

    InitiateMultipartUploadResponse initResponse = client.InitiateMultipartUpload(initiateRequest);
    Console.WriteLine("InitiateMultipartUpload status: {0}", initResponse.StatusCode);
    Console.WriteLine("InitiateMultipartUpload UploadId: {0}", initResponse.UploadId);
}
catch (ObsException ex)
{
    Console.WriteLine("ErrorCode: {0}", ex.ErrorCode);
    Console.WriteLine("ErrorMessage: {0}", ex.ErrorMessage);
}

• The previous mode specifies the time duration in days after which an object will expire. The OBS server automatically clears expired objects.
• The object expiration time set in the preceding method takes precedence over the bucket lifecycle rule.