ProGet Asset: downloaded installer is no longer executable

[uvonceumern_6611]

I am uploading an installer (.exe) to an asset directory (via the API using Postman at the moment).

Uploading the file works fine, I get a 201.

However, when I download the file, it is no longer a valid win32 executable. Here is the diff of the uploaded and the downloaded file:

It looks like the file header is broken and a few extra bytes were added.

What am I doing wrong?

Here is the generated C# code from Postman:

var client = new HttpClient();
var request = new HttpRequestMessage(HttpMethod.Post, "https://my-server/endpoints/modular-installers/content/Workstation_setup_latest.exe");
request.Headers.Add("X-ApiKey", "my-api-key");
request.Content = new StreamContent(File.OpenRead("/C:/Temp/Workstation_setup_v0.0.546.exe"));
var response = await client.SendAsync(request);
response.EnsureSuccessStatusCode();
Console.WriteLine(await response.Content.ReadAsStringAsync());

And here is a screenshot from file in ProGet:

Update: If I upload the file via the Web UI, this issue does not happen. It seems to be tied to how I upload the file via API.

Update 2: It seems like Chrome is adding bytes during / after download. The file size in ProGet is correct, but after the download the file size increases by 262 bytes. I tried it in Edge and this does not happen.

When I download the file from the original source (GitHub), this behavior does not occur.

Update 3: Chrome seems to add some form of header to the downloaded file:

[stevedennis]

Hi @uvonceumern_6611 ,

Thanks for providing all of the additional information; based on what you shared, it looks like the file is actually being uploaded incorrectly... using a "multi-party / form upload encoding" instead of a basic PUT of POST of the body contents.

Please see the Upload Asset File documentation for more information.

Thanks,
Steve