Question

我要下载特定存储桶中的所有日志文件（最终每个存储桶都有），这是我正在使用的代码

package main

import (
    "fmt"
    "os"
    "path/filepath"

    "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"
)

var (
    // variables empty for security
    Bucket         = ""                                               // Download from this bucket
    Prefix         = "" // Using this key prefix
    LocalDirectory = "s3logs"                                                    // Into this directory
)

func main() {

    client := s3.New(session.New(), &aws.Config{Region: aws.String("us-west-1")})
    params := &s3.ListObjectsInput{Bucket: &Bucket, Prefix: &Prefix}

    manager := s3manager.NewDownloader(client)
    d := downloader{bucket: Bucket, dir: LocalDirectory, Downloader: manager}

    client.ListObjectsPages(params, d.eachPage)

}

type downloader struct {
    *s3manager.Downloader
    bucket, dir string
}

func (d *downloader) eachPage(page *s3.ListObjectsOutput, more bool) bool {
    for _, obj := range page.Contents {
        d.downloadToFile(*obj.Key)
    }

    return true
}

func (d *downloader) downloadToFile(key string) {
    // Create the directories in the path
    file := filepath.Join(d.dir, key)

    if err := os.MkdirAll(filepath.Dir(file), 0775); err != nil {
        panic(err)
    }
    fmt.Printf("Downloading " + key)
    // Setup the local file
    fd, err := os.Create(file)
    if err != nil {
        panic(err)
    }

    defer fd.Close()

    // Download the file using the AWS SDK
    fmt.Printf("Downloading s3://%s/%s to %s...\n", d.bucket, key, file)
    params := &s3.GetObjectInput{Bucket: &d.bucket, Key: &key}
    d.Download(fd, params)
}

但是，当我运行此代码时，我收到一个恐慌错误

不能在s3manager.NewDownloader的参数中使用client（type * s3.S3）作为类型client.ConfigProvider： * s3.S3没有实现client.ConfigProvider（缺少ClientConfig方法）

我不知道这段代码不起作用，任何想法和/或修复

Answer 1

您将nil传递给s3manager.NewDownloader，其中需要Session

sess := session.New()
manager := s3manager.NewDownloader(sess)

从AWS S3下载日志文件恐慌：运行时错误：

1 个答案: