On 28 Aug 2018, at 00:41, Andy Burnett <andy.burnett@knowinnovation.com> wrote:

Next step of my Asana adventure.

In a browser

https://s3.amazonaws.com/profile_photos/206785263586755.0mU1QMOxVZLp3WiRWhWX...

downloads a png.

When I try ZnEasy getPng: with the same address, I get a walkback saying expected image/png actual application/octet-stream.

In AWS S3 you have to set the correct mime-type when you upload a file, this can also be changed afterwards. If not, it remains binary (application/octet-stream). It is possible to derive mime-types from extensions, though that is not perfect. See ZnMimeType class>>#forFilenameExtension:

Is it possible to handle this with ZnEasy,

Not as it is today.

or do I have to use the ZnClient and handle the stream first?

Yes, get the bytes and create the Form yourself.

Cheers Andy