/
aws.go
78 lines (64 loc) · 1.66 KB
/
aws.go
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package bucket
import (
"io"
"os"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/aws/session"
"github.com/aws/aws-sdk-go/service/s3"
"github.com/aws/aws-sdk-go/service/s3/s3manager"
)
type AwsConfig struct {
Config *aws.Config
BucketDownload string
BucketUpload string
}
type awsSession struct {
session *session.Session
bucketDownload string
bucketUpload string
}
func newAwsSession(cfg AwsConfig) *awsSession {
session := session.New(cfg.Config)
return &awsSession{
session: session,
bucketDownload: cfg.BucketDownload,
bucketUpload: cfg.BucketUpload,
}
}
func (session *awsSession) Download(source string, destiny string) (file *os.File, err error) {
file, err = os.Create(destiny)
if err != nil {
return
}
defer file.Close()
downloader := s3manager.NewDownloader(session.session)
_, err = downloader.Download(file,
&s3.GetObjectInput{
Bucket: aws.String(session.bucketDownload),
Key: aws.String(source),
})
return
}
func (session *awsSession) Upload(file io.Reader, key string) error {
uploader := s3manager.NewUploader(session.session)
_, err := uploader.Upload(&s3manager.UploadInput{
Bucket: aws.String(session.bucketUpload),
Key: aws.String(key),
Body: file,
})
return err
}
func (session *awsSession) Delete(source string) error {
service := s3.New(session.session)
_, err := service.DeleteObject(&s3.DeleteObjectInput{
Bucket: aws.String(session.bucketDownload),
Key: aws.String(source),
})
if err != nil {
return err
}
return service.WaitUntilObjectNotExists(&s3.HeadObjectInput{
Bucket: aws.String(session.bucketDownload),
Key: aws.String(source),
})
}