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