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. The sample code is as follows:

// Initialize configuration parameters.
ObsConfig config = new ObsConfig();
config.Endpoint = "https://your-endpoint";
// Hard-coded or plaintext AK and SK are risky. For security purposes, encrypt your AK and SK before storing them in the configuration file or environment variables. In this example, the AK and SK are stored in environment variables. Before running the code in 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 to be uploaded, in which 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 initiating a multipart upload, configure the object to expire 60 days after being created from part assembling.
        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.