在上传到 S3 的对象上设置`Content-Disposition`？

Question

I have a .NET Core project that uploads objects to an S3 bucket. I want to set the Content-Disposition so when the object is downloaded the name is what we want to be. (Not necessarily relevant, but I don't want to change the name of the object as the "download name" I am after is not guaranteed to be unique within the bucket).

This is what I am trying:

var fileTransferUtilityRequest = new TransferUtilityUploadRequest
{
    BucketName = "my-bucket", 
    FilePath = "/tmp/54a0f73d-65ea-4719-8227-b67209c15c9f.zip",
    PartSize = 6291456, // 6 MB.
    Key = "54a0f73d-65ea-4719-8227-b67209c15c9f.zip"
};

fileTransferUtilityRequest.Metadata.Add("Content-Disposition", "attachment; filename=\"human-name.zip\"");

await transferUtility.UploadAsync(fileTransferUtilityRequest, cancellationToken);

What it ends up doing is adding meta-data to the object with the key x-amz-meta-content-disposition and the value I set via code.

Is there a way to set the Content-Disposition key during upload that I am missing?

Answer 1

You can set the ContentDisposition in the Headers of the TransferUtilityUploadRequest

var fileTransferUtilityRequest = new TransferUtilityUploadRequest
{
    BucketName = "my-bucket", 
    FilePath = "/tmp/54a0f73d-65ea-4719-8227-b67209c15c9f.zip",
    PartSize = 6291456, // 6 MB.
    Key = "54a0f73d-65ea-4719-8227-b67209c15c9f.zip"
};

fileTransferUtilityRequest.Headers.ContentDisposition = "attachment; filename=file-name.pdf";