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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,72 @@ | ||
| package repository | ||
|
|
||
| import ( | ||
| "os" | ||
| "path/filepath" | ||
|
|
||
| "github.com/aws/aws-sdk-go/aws" | ||
| "github.com/aws/aws-sdk-go/aws/credentials" | ||
| "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" | ||
| ) | ||
|
|
||
| // downloader for csv | ||
| type downloader struct { | ||
| Token string | ||
| Region string | ||
| BucketName string | ||
| BucketDir string | ||
| SaveDir string // CSVを保存するローカル側のパス | ||
| } | ||
|
|
||
| // s3 から取得するCSVファイル名 | ||
| var targetCSVName = []string{ | ||
| "cf.csv", | ||
| "cf_lastmonth.csv", | ||
| } | ||
|
|
||
| func NewDownloader(saveDir string) *downloader { | ||
| return &downloader{ | ||
| Token: os.Getenv("AWS_SECRET_ACCESS_KEY"), | ||
| Region: os.Getenv("AWS_REGION"), | ||
| BucketName: os.Getenv("BUCKET_NAME"), | ||
| BucketDir: os.Getenv("BUCKET_DIR"), | ||
| SaveDir: saveDir, | ||
| } | ||
| } | ||
|
|
||
| func (d *downloader) Start() error { | ||
| creds := credentials.NewStaticCredentials("AccessKey", "secret", d.Token) | ||
|
|
||
| sess := session.Must(session.NewSession(&aws.Config{ | ||
| Credentials: creds, | ||
| Region: aws.String(d.Region), | ||
| })) | ||
| svc := s3manager.NewDownloader(sess) | ||
| objects := []s3manager.BatchDownloadObject{} | ||
|
|
||
| for _, fileName := range targetCSVName { | ||
| savePath := filepath.Join(d.SaveDir, fileName) | ||
| s3Key := filepath.Join(d.BucketDir, fileName) | ||
| f, err := os.OpenFile(savePath, os.O_WRONLY|os.O_CREATE, 0666) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| defer f.Close() | ||
| objects = append(objects, s3manager.BatchDownloadObject{ | ||
| Object: &s3.GetObjectInput{ | ||
| Bucket: aws.String(d.BucketName), | ||
| Key: aws.String(s3Key), | ||
| }, | ||
| Writer: f, | ||
| }) | ||
| } | ||
| iter := &s3manager.DownloadObjectsIterator{Objects: objects} | ||
| err := svc.DownloadWithIterator(aws.BackgroundContext(), iter) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| return nil | ||
| } |
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