[英]How to download a file from S3 bucket directly to the browser using AWS SDK (Ruby on Rails)?
[英]Delete from S3 bucket with Ruby SDK
我正在嘗試使用適用於Ruby的AWS開發工具包在Rails應用程序中執行一些S3上傳,下載和刪除。 上載和下載工作正常; 刪除不多。 我無休止地搜索了Google,發現了幾個“解決方案”,但是它們都不起作用。
我嘗試了嘗試#1的幾種變體。 我嘗試了delete_objects,嘗試傳遞了數組和哈希值而不是單個對象名稱,並嘗試傳遞了鍵:對象名稱,等等。
嘗試1:
def delete_file
access_key_id = Rails.configuration.app['access_key_id']
secret_access_key = Rails.configuration.app['secret_access_key']
credentials = Aws::Credentials.new(access_key_id, secret_access_key)
Aws.config[:credentials] = credentials
s3_client = Aws::S3::Client.new(region: Rails.configuration.app['s3_region'], credentials: credentials)
s3_resource = Aws::S3::Resource.new(client: s3_client)
bucket = s3_resource.bucket(Rails.configuration.app['s3_bucket'])
obj = s3_resource.bucket(Rails.configuration.app['s3_bucket']).object(object_name)
s3_response = obj.delete
Rails.logger.error("XXX")
Rails.logger.error(s3_response)
Rails.logger.error("XXX")
return s3_response
end
輸出:
XXX
#<struct Aws::S3::Types::DeleteObjectOutput delete_marker=true, version_id="null", request_charged=nil>
XXX
嘗試2:
def delete_file
access_key_id = Rails.configuration.app['access_key_id']
secret_access_key = Rails.configuration.app['secret_access_key']
credentials = Aws::Credentials.new(access_key_id, secret_access_key)
Aws.config[:credentials] = credentials
s3_client = Aws::S3::Client.new(region: Rails.configuration.app['s3_region'], credentials: credentials)
s3_resource = Aws::S3::Resource.new(client: s3_client)
bucket = s3_resource.bucket(Rails.configuration.app['s3_bucket'])
s3_response = bucket.delete_objects({
delete: {
objects: [
{
key: object_name
}
]
}
})
Rails.logger.error("XXX")
Rails.logger.error(s3_response)
Rails.logger.error("XXX")
return s3_response
end
輸出:
XXX
#<struct Aws::S3::Types::DeleteObjectsOutput deleted=[#<struct Aws::S3::Types::DeletedObject key="[object_name]?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=[stuff]%2F20170813%2Fus-east-1%2Fs3%2Faws4_request&X-Amz-Date=20170813T164341Z&X-Amz-Expires=3600&X-Amz-SignedHeaders=host&X-Amz-Signature=[stuff]", version_id=nil, delete_marker=true, delete_marker_version_id="null">], request_charged=nil, errors=[]>
XXX
請注意,我正在使用的S3存儲桶已關閉版本控制功能,因此任何上載文件都只有一個版本。 我想從給定存儲桶中完全刪除給定對象名稱。
我正在尋找一種編程方式在Rails 5.1中做到這一點。 謝謝大家
編輯:另外兩次不起作用的嘗試-與嘗試1的輸出相同:
s3_response = s3_client.delete_object({
bucket: Rails.configuration.app['s3_bucket'],
key: object_name
})
s3_response = s3_client.delete_object({
bucket: Rails.configuration.app['s3_bucket'],
key: full_object_url
})
您在代碼中的哪里定義object_name
? 另外,如果您只需要與S3存儲桶進行交互,則建議您使用更簡單的gem: https : //github.com/qoobaa/s3
解決方案是使用更簡單的gem: https : //github.com/qoobaa/s3 。 感謝CV-Gate!
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