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Specify Content-Type in the AWS PHP Download Function

I port my code from AWS PHP SDK1 to SDK2 ( https://github.com/aws/aws-sdk-php ).

I have an image downloader. In my previous version, I would specify the Content-Type of my image like this:

$response = $this->s3->create_object(
                $bucket,
                $key,
                array(
                    'fileUpload'=>$file_resource,
                    'contentType'=>$mime, 
                    'acl' => AmazonS3::ACL_PUBLIC,
                    )
                );

This is my new version:

$response = $this->s3->upload(
                    $bucket, 
                    $key, 
                    $file_resource, 
                    'public-read',
                    array('params' => array('Metadata' => array('ContentType'=>$mime)))
                    );

I tried various spellings of ContentType, on the S3 website it changes the name to look like "x-amz-meta-contenttype", and the value of "Content-Type" is the default binary / octet stream.

I also tried using the EntityBody function, but the same results:

$response = $this->s3->upload(
                    $this->bucket, 
                    $to, 
                    EntityBody::factory($file_resource), 
                    'public-read',
                    array('params' => array('Metadata' => array('ContentType'=>$mime)))
                    );

How to set content type in this new API?

EDIT: I see somewhere in the documentation:

AWS SDK PHP Content-Type, . , Content-Type , Content-Type, ContentType .

-, , , S3, "/ ". , "ContentType", , ...

+4
2

, :

array('params' => array('ContentType' => $mime))

+9

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