Manage symbolic links

A symbolic link can have multiple versions. When you create a symbolic link in a versioning-enabled bucket,the version ID of the link is automatically generated by OSS and is returned as the x-oss-version-id header in the response. You can create a symbolic link and point it to the current version of the target object.

using Aliyun.OSS;
var endpoint = "<yourEndpoint>";
var accessKeyId = "<yourAccessKeyId>";
var accessKeySecret = "<yourAccessKeySecret>";
var bucketName = "<yourBucketName>";
var targetObjectName = "<yourTargetObjectName>";
var symlinkObjectName = "<yourSymlinkObjectName>";
var objectContent = "More than just cloud." ;
// Create an OSSClient instance.
var client = new OssClient(endpoint, accessKeyId, accessKeySecret);
try
{
    // Upload the target object.
    byte[] binaryData = Encoding.ASCII.GetBytes(objectContent);
    MemoryStream requestContent = new MemoryStream(binaryData);
    client.PutObject(bucketName, targetObjectName, requestContent);
    // Create the symbolic link.
    client.CreateSymlink(bucketName, symlinkObjectName, targetObjectName);
}
catch (Exception ex)
{
    Console.WriteLine("Failed with error info: {0}", ex.Message);
}

By default, GetSymlink obtains the current version of the target symbolic link. You can specify the version ID in the request to obtain the specified version of a symbolic link. If the current version of the target symbolic link is a delete marker, OSS returns the 404 Not Found error and includes oss-delete-marker = true and x-oss-version-id in the response header.

using Aliyun.OSS;
var endpoint = "<yourEndpoint>";
var accessKeyId = "<yourAccessKeyId>";
var accessKeySecret = "<yourAccessKeySecret>";
var bucketName = "<yourBucketName>";
var symlinkObjectName = "<yourSymlinkObjectName>";
var versionid = "<yourArchiveObjectVersionid>";
// Create an OSSClient instance.
var client = new OssClient(endpoint, accessKeyId, accessKeySecret);
try
{
    // Obtain the name of the object to which the symbolic link points.
    var request = new GetSymlinkRequest(bucketName, symlinkObjectName)
    {
        // Obtain the specified version of a symbolic link.
        VersionId = versionid
    };
    var ossSymlink = client.GetSymlink(request);
    Console.WriteLine("Target object is {0}", ossSymlink.Target);
}
catch (Exception ex)
{
    Console.WriteLine("Failed with error info: {0}", ex.Message);
}