File upload using AngularJS -> .NET Web Api 2 -> SQL server - angularjs

Question

I'm looking for a solution where I can upload any file to SQL server from an AngularJS frontend to .Net Web Api 2 and straight to SQL Server Database. I've done some research and for angularjs i'm mainly looking at ng-file-upload. my problem is most of the solutions that i've looked at saves the file into a temp folder. I'm not sure if it's possible but I want it straight to an SQL server table.
I've seen some solutions where it converts the file into a byte array which can be saved to an SQL table but I'm not sure how to do this in a .NET web api 2 and from an angularjs front end. thank you in advance.

Answer 1

Don't save files to SQL server--that's not what it's for. See this answer: In MVC4, how do I upload a file (an image) to SQL Server that's part of my domain model? And this answer: Storing files in SQL Server
Uploading files in angular is easy. Do it like this:
Controller
$scope.uploadFile = function() {
//get the filename from the <input type='file'>
//angular doesn't allow attaching ngModel to file input
var fileInput = document.getElementById("myInputId");
//check if there's a file
if(fileInput.files.length === 0) return;
//you cannot send a file as JSON because json is in the string format
//for fileuploads, you must send as a FormData() object
//C# accepts HttpPostedFileBase as the file argument
var file = fileInput.files[0];
//put the file in a new formdata object
var payload = new FormData();
payload.append("file", file);
//upload file to C# controller
$http.post("path/to/C#/controller", payload, {
//you **need** to specify these options, without them upload does not work
transformRequest: angular.identity,
headers: { "Content-Type": undefined }
}).then(function(data) {
//success
}, function(error) {
//error
});
}
C#/ASP.NET
[WebMethod]
public string UploadFile(HttpPostedFileBase file) {
//access the file object here
var inputStream = file.InputStream;
var fileName = Path.GetFileName(file.FileName);
try
{
file.SaveAs("local/path" + fileName);
}
catch (IOException exc)
{
return "Error: " + exc.Message;
}
return "success";
}