API Overview of OBS SDK for Go

Table 1 describes the APIs provided by OBS SDK for Go. You can click an API name in the table to see its detailed information and sample code.

**Table 1** APIs provided by OBS SDK for Go
API	Method	Function
Creating a Bucket	obsClient.CreateBucket	Creates a bucket.
Obtaining a Bucket List	obsClient.ListBuckets	Returns a list of buckets in alphabetical order.
Checking Whether a Bucket Exists	obsClient.HeadBucket	Determines whether a bucket exists.
Deleting a Bucket	obsClient.DeleteBucket	Deletes an empty bucket.
Listing Objects in a Bucket	obsClient.ListObjects	Returns some or all (up to 1,000) of the objects in a bucket.
Listing Object Versions in a Bucket	obsClient.ListVersions	Lists some or all (up to 1,000) of the object versions in a bucket.
Obtaining Bucket Metadata	obsClient.GetBucketMetadata	Returns the metadata information of a bucket.
Obtaining the Region of a Bucket	obsClient.GetBucketLocation	Returns the region where the bucket is created.
Obtaining Storage Information of a Bucket	obsClient.GetBucketStorageInfo	Returns the storage information of a bucket, including the number of objects and the space occupied by the objects in the bucket.
Configuring a Storage Quota	obsClient.SetBucketQuota	Sets a storage quota for a bucket.
Obtaining a Bucket Storage Quota	obsClient.GetBucketQuota	Returns the storage quota of a bucket.
Configuring Storage Class for a Bucket	obsClient.SetBucketStoragePolicy	Configures a storage class for a bucket.
Obtaining the Storage Class of a Bucket	obsClient.GetBucketStoragePolicy	Returns the storage class of a bucket.
Configuring a Bucket ACL	obsClient.SetBucketAcl	Configures the ACL for a bucket.
Obtaining the Bucket ACL	obsClient.GetBucketAcl	Returns the bucket ACL.
Configuring Logging for a Bucket	obsClient.SetBucketLoggingConfiguration	Configures logging for a bucket.
Obtaining the Logging Configuration of a Bucket	obsClient.GetBucketLoggingConfiguration	Returns the logging configuration of a bucket.
Configuring a Bucket Policy	obsClient.SetBucketPolicy	Configures a policy for a bucket.
Obtaining the Policy of a Bucket	obsClient.GetBucketPolicy	Returns the policy of a bucket.
Deleting a Bucket Policy	obsClient.DeleteBucketPolicy	Deletes the policy of a bucket.
Configuring Lifecycle Rules for a Bucket	obsClient.SetBucketLifecycleConfiguration	Configure lifecycle rules for a bucket to periodically transition objects between storage classes and delete objects.
Obtaining the Lifecycle Configuration of a Bucket	obsClient.GetBucketLifecycleConfiguration	Returns the lifecycle configuration of a bucket.
Deleting the Lifecycle Configuration of a Bucket	obsClient.DeleteBucketLifecycleConfiguration	Deletes all lifecycle rules of a bucket.
Configuring Static Website Hosting for a Bucket	obsClient.SetBucketWebsiteConfiguration	Configures static website hosting for a bucket.
Obtaining the Static Website Hosting Configuration of a Bucket	obsClient.GetBucketWebsiteConfiguration	Returns the static website hosting configuration of a bucket.
Deleting the Static Website Hosting Configuration of a Bucket	obsClient.DeleteBucketWebsiteConfiguration	Deletes the static website hosting configuration of a bucket.
Configuring Versioning for a Bucket	obsClient.SetBucketVersioning	Configures versioning for a bucket.
Obtaining the Versioning Status of a Bucket	obsClient.GetBucketVersioning	Returns the versioning status of a bucket.
Configuring CORS for a Bucket	obsClient.SetBucketCors	Configures CORS for a bucket to allow cross-origin requests.
Obtaining the CORS Configuration of a Bucket	obsClient.GetBucketCors	Returns the CORS rules of a bucket.
Deleting the CORS Configuration of a Bucket	obsClient.DeleteBucketCors	Deletes the CORS configuration of a bucket.
Configuring Tags for a Bucket	obsClient.SetBucketTagging	Adds tags to a bucket.
Obtaining Bucket Tags	obsClient.GetBucketTagging	Returns the tags of a bucket.
Deleting Bucket Tags	obsClient.DeleteBucketTagging	Deletes the tags of a bucket.
Uploading an Object	obsClient.PutObject	Uploads an object to a bucket.
Uploading a File	obsClient.PutFile	Uploads a file or folder to a bucket.
Download an Object	obsClient.GetObject	Downloads an object from a bucket.
Copying an Object	obsClient.CopyObject	Creates a copy for a specified object.
Deleting an Object	obsClient.DeleteObject	Deletes a single object from a bucket.
Batch Deleting Objects	obsClient.DeleteObjects	Delete multiple objects from a bucket in a batch.
Obtaining Object Metadata	obsClient.GetObjectMetadata	Returns the object metadata.
Configuring Object Metadata	obsClient.SetObjectMetadata	Configures the metadata for an object.
Configuring an Object ACL	obsClient.SetObjectAcl	Configures the ACL for an object.
Obtaining Object ACL Information	obsClient.GetObjectAcl	Returns the ACL of an object.
Initiating a Multipart Upload	obsClient.InitiateMultipartUpload	Initiates a multipart upload in a bucket.
Uploading a Part	obsClient.UploadPart	Uploads parts to a bucket by specifying the multipart upload ID.
Copying a Part	obsClient.CopyPart	Copies a part to a specified bucket.
Listing Uploaded Parts	obsClient.ListParts	Returns the uploaded parts in a bucket by specifying the multipart upload ID.
Listing Multipart Uploads	obsClient.ListMultipartUploads	Returns the multipart uploads that are initiated but have not been assembled or aborted in a bucket.
Assembling Parts	obsClient.CompleteMultipartUpload	Completes a multipart upload based on the multipart upload ID and information (including PartNumber and ETag) about the uploaded parts.
Aborting a Multipart Upload	obsClient.AbortMultipartUpload	Aborts a multipart upload in a bucket by specifying the multipart upload ID.
Restoring an Archive Object	obsClient.RestoreObject	Restores an Archive object.
Creating a Signed URL	obsClient.CreateSignedUrl	Creates a signed URL based on the specified AK and SK, HTTP method, and request parameters.
Creating Parameters for Browser-based Upload	obsClient.CreateBrowserBasedSignature	Creates request parameters for authentication to enable browser-based upload with POST.
Uploading an Object - Resumable	obsClient.UploadFile	Enables resumable uploads of objects in the event of unstable network connections or program crashes.
Downloading an Object - Resumable	obsClient.DownloadFile	Enables resumable downloads of objects in the event of unstable network connections or program crashes.