204 No Content about angular-file-upload

[kurtfunai]

I'm not familiar with building ASP.NET APIs, but could it be expecting any sort of explicit format?
In Rails you would set the format to json within the url.
ex: '/api/upload' could be '/api/upload.json'

Also, it could be working, but you might not be returning anything.

204 No Content The server has fulfilled the request but does not need to return an entity-body, and might want to return updated metainformation. The response MAY include new or updated metainformation in the form of entity-headers, which if present SHOULD be associated with the requested variant.

Perhaps debug the controller to see if files is being set?

Sorry I cannot be of more help :[

[parvinderahlawat]

Thanks Kurt, I was able to resolve this issue.
I verified that the files were being set properly in the angular_file_uploader item object so issue was at the receiving end.

I didn't had to specify any additional property, other than the headers tag to fix one exception.

var headers = { "Content-Type": "multipart/form-data" };
var uploader = $scope.uploader = $fileUploader.create({
    scope: $scope,                          
    url: '/upload/UploadDocuments',
    method: 'POST',
    headers: headers
});

If any other .NET person facing the same issue, I was able to resolve this by doing the POST request to a normal controller instead of a Web API controller, and read it from the Request object:

Action being called from fileUploader:
[HttpPost]
public void UploadDocuments()

and then reading the files using below code:
string filename = null;
string fileType = null;
byte[] fileContents = null;
string fileMetadata = Request.Headers["X-File-Metadata"];
if (Request.Files.Count > 0)
{
var file = Request.Files[0];
fileContents = new byte[file.ContentLength];
file.InputStream.Read(fileContents, 0, file.ContentLength);
fileType = file.ContentType;
filename = file.FileName;
}
else if (Request.ContentLength > 0)
{
fileContents = new byte[Request.ContentLength];
Request.InputStream.Read(fileContents, 0, Request.ContentLength);
filename = Request.Headers["X-File-Name"];
fileType = Request.Headers["X-File-Type"];
}