Function main

examples/s3/listobjects-N.go:31–83

()

)

func main() {
	// Note: YOUR-ACCESSKEYID, YOUR-SECRETACCESSKEY, my-bucketname and my-prefixname
	// are dummy values, please replace them with original values.

	// Requests are always secure (HTTPS) by default. Set secure=false to enable insecure (HTTP) access.
	// This boolean value is the last argument for New().

	// New returns an Amazon S3 compatible client object. API compatibility (v2 or v4) is automatically
	// determined based on the Endpoint value.
	s3Client, err := minio.New("s3.amazonaws.com", &minio.Options{
		Creds:  credentials.NewStaticV4("YOUR-ACCESSKEYID", "YOUR-SECRETACCESSKEY", ""),
		Secure: true,
	})
	if err != nil {
		fmt.Println(err)
		return
	}

	// List 'N' number of objects from a bucket-name with a matching prefix.
	listObjectsN := func(bucket, prefix string, recursive bool, N int) (objsInfo []minio.ObjectInfo, err error) {
		ctx, cancel := context.WithCancel(context.Background())
		// Indicate ListObjects go-routine to exit and stop feeding the objectInfo channel.
		defer cancel()
		i := 1
		opts := minio.ListObjectsOptions{
			UseV1:     true,
			Prefix:    prefix,
			Recursive: recursive,
		}
		for object := range s3Client.ListObjects(ctx, bucket, opts) {
			if object.Err != nil {
				return nil, object.Err
			}
			i++
			// Verify if we have printed N objects.
			if i == N {
				break
			}
			objsInfo = append(objsInfo, object)
		}
		return objsInfo, nil
	}

	// List recursively first 100 entries for prefix 'my-prefixname'.
	recursive := true
	objsInfo, err := listObjectsN("my-bucketname", "my-prefixname", recursive, 100)
	if err != nil {
		fmt.Println(err)
	}

	// Print all the entries.
	fmt.Println(objsInfo)
}