Wie streame ich große Dateien mit Go nach AWS S3?

import (
    "github.com/aws/aws-sdk-go/aws/session"
    "github.com/aws/aws-sdk-go/service/s3/s3manager"
)

func main() {
    // Create an S3 uploader with custom options
    uploader := s3manager.NewUploader(session.Must(session.NewSession()), func(u *s3manager.Uploader) {
        u.PartSize = 5 * 1024 * 1024 // 5MB part size
        u.Concurrency = 2           // 2 concurrent uploads
    })

    // Open the file for upload
    f, err := os.Open("file.txt")
    if err != nil {
        panic(err)
    }
    defer f.Close()

    // Stream file to S3
    result, err := uploader.Upload(&s3manager.UploadInput{
        Bucket: aws.String("my-bucket"),
        Key:    aws.String("file.txt"),
        Body:   f,
    })

    if err != nil {
        panic(err)
    }

    // Display uploaded file information
    fmt.Printf("File uploaded to: %s", result.Location)
}