从HttpContext Angular和Web API获取数据

Question

In the angular controller I have this code to transfer $scope.myModel to a Web API controller:

$scope.upload[index] = $upload.upload({
  url: settings.constants.uploadURL,
  headers: { 'myHeaderKey': 'myHeaderVal' },
  data: { model: $scope.myModel },
  file: $file,
  fileFormDataName: 'myFile'
}).then(function (response) { ...

The Web API controller post method looks like this

public HttpResponseMessage Post()
{
  return UploadFile(HttpContext.Current);
}

How do I get the data: model from out from the HttpContext??

Answer 1

WebAPI is not designed to be used in that fashion. Specifically, it is usually bad practice to refer to HttpContext.Current from within a WebAPI controller method. If you did want to check the request or response, you should refer to them by the properties of the ApiController base class, see the msdn docs .

Usually, people prefer model binding for situations like this. Suppose you had in js:

{
   foo: "bar"
}

You should declare a class in C# that maps to it:

public class MyRequestModel
{
   public string Foo { get; set; }
}

And by declaring your API method:

public HttpResponseMessage Post(MyRequestModel mdl)
{
// do stuff, mdl.Foo will have "bar" in it magically
}

This results in more object-oriented ways of transferring data from javascript to C#. It's more typesafe because you can be guaranteed that the Foo property in C# will have a string , or an int , or whatever you declare it to be as opposed to parsing the request yourself.