生成一组图像文件的预签名URL

Question

Is it possible to call AWS API only once, specifically Presign function, in order to obtain Authorization token, and then use it for set of, lets say 50, image files on S3?

I don't want to invoke AWS API X times in order to generate URLs for image files on S3. Is there a way around it?

Answer 1

I'm not aware of a pre-sign SDK method, in any of the SDKs, that accepts a list of S3 keys.

However, you should just go ahead and call the pre-sign method, file by file. It's not a network API call. It's a purely local signing operation.