110 lines
4.2 KiB
Go
110 lines
4.2 KiB
Go
// Upload Managers
|
|
//
|
|
// The s3manager package's Uploader provides concurrent upload of content to S3
|
|
// by taking advantage of S3's Multipart APIs. The Uploader also supports both
|
|
// io.Reader for streaming uploads, and will also take advantage of io.ReadSeeker
|
|
// for optimizations if the Body satisfies that type. Once the Uploader instance
|
|
// is created you can call Upload concurrently from multiple goroutines safely.
|
|
//
|
|
// // The session the S3 Uploader will use
|
|
// sess := session.Must(session.NewSession())
|
|
//
|
|
// // Create an uploader with the session and default options
|
|
// uploader := s3manager.NewUploader(sess)
|
|
//
|
|
// f, err := os.Open(filename)
|
|
// if err != nil {
|
|
// return fmt.Errorf("failed to open file %q, %v", filename, err)
|
|
// }
|
|
//
|
|
// // Upload the file to S3.
|
|
// result, err := uploader.Upload(&s3manager.UploadInput{
|
|
// Bucket: aws.String(myBucket),
|
|
// Key: aws.String(myString),
|
|
// Body: f,
|
|
// })
|
|
// if err != nil {
|
|
// return fmt.Errorf("failed to upload file, %v", err)
|
|
// }
|
|
// fmt.Printf("file uploaded to, %s\n", aws.StringValue(result.Location))
|
|
//
|
|
// See the s3manager package's Uploader type documentation for more information.
|
|
// https://docs.aws.amazon.com/sdk-for-go/api/service/s3/s3manager/#Uploader
|
|
//
|
|
// Download Manager
|
|
//
|
|
// The s3manager package's Downloader provides concurrently downloading of Objects
|
|
// from S3. The Downloader will write S3 Object content with an io.WriterAt.
|
|
// Once the Downloader instance is created you can call Upload concurrently from
|
|
// multiple goroutines safely.
|
|
//
|
|
// // The session the S3 Downloader will use
|
|
// sess := session.Must(session.NewSession())
|
|
//
|
|
// // Create a downloader with the session and default options
|
|
// downloader := s3manager.NewDownloader(sess)
|
|
//
|
|
// // Create a file to write the S3 Object contents to.
|
|
// f, err := os.Create(filename)
|
|
// if err != nil {
|
|
// return fmt.Errorf("failed to create file %q, %v", filename, err)
|
|
// }
|
|
//
|
|
// // Write the contents of S3 Object to the file
|
|
// n, err := downloader.Download(f, &s3.GetObjectInput{
|
|
// Bucket: aws.String(myBucket),
|
|
// Key: aws.String(myString),
|
|
// })
|
|
// if err != nil {
|
|
// return fmt.Errorf("failed to upload file, %v", err)
|
|
// }
|
|
// fmt.Printf("file downloaded, %d bytes\n", n)
|
|
//
|
|
// See the s3manager package's Downloader type documentation for more information.
|
|
// https://docs.aws.amazon.com/sdk-for-go/api/service/s3/s3manager/#Downloader
|
|
//
|
|
// Get Bucket Region
|
|
//
|
|
// GetBucketRegion will attempt to get the region for a bucket using a region
|
|
// hint to determine which AWS partition to perform the query on. Use this utility
|
|
// to determine the region a bucket is in.
|
|
//
|
|
// sess := session.Must(session.NewSession())
|
|
//
|
|
// bucket := "my-bucket"
|
|
// region, err := s3manager.GetBucketRegion(ctx, sess, bucket, "us-west-2")
|
|
// if err != nil {
|
|
// if aerr, ok := err.(awserr.Error); ok && aerr.Code() == "NotFound" {
|
|
// fmt.Fprintf(os.Stderr, "unable to find bucket %s's region not found\n", bucket)
|
|
// }
|
|
// return err
|
|
// }
|
|
// fmt.Printf("Bucket %s is in %s region\n", bucket, region)
|
|
//
|
|
// See the s3manager package's GetBucketRegion function documentation for more information
|
|
// https://docs.aws.amazon.com/sdk-for-go/api/service/s3/s3manager/#GetBucketRegion
|
|
//
|
|
// S3 Crypto Client
|
|
//
|
|
// The s3crypto package provides the tools to upload and download encrypted
|
|
// content from S3. The Encryption and Decryption clients can be used concurrently
|
|
// once the client is created.
|
|
//
|
|
// sess := session.Must(session.NewSession())
|
|
//
|
|
// // Create the decryption client.
|
|
// svc := s3crypto.NewDecryptionClient(sess)
|
|
//
|
|
// // The object will be downloaded from S3 and decrypted locally. By metadata
|
|
// // about the object's encryption will instruct the decryption client how
|
|
// // decrypt the content of the object. By default KMS is used for keys.
|
|
// result, err := svc.GetObject(&s3.GetObjectInput {
|
|
// Bucket: aws.String(myBucket),
|
|
// Key: aws.String(myKey),
|
|
// })
|
|
//
|
|
// See the s3crypto package documentation for more information.
|
|
// https://docs.aws.amazon.com/sdk-for-go/api/service/s3/s3crypto/
|
|
//
|
|
package s3
|