I am using asp.net web api2 token based authentication. Works enough
 $("#Login").click(function () {
    var userName = $("#UserName").val();
    var password = $("#Password").val();
    $.ajax({
        url: "http://api.foo.net/token",
        type: "POST",
        crossDomain: true,
        data: {
            "username": userName,
            "password": password,
            "grant_type": "password"
        },
        dataType: "json",
        success: function (result) {
            alert("Logged in successfully");
            localStorage.setItem('Token', JSON.stringify(result));
        },
        error: function (xhr, status, error) {
            alert(status + " " + error);
        }
    });
});
but I want to convert AngularJS,i wrote a factory in app.js
.factory("API", function ($http) {
    var tokenLink = 'http://api.foo.net/token';
    return {
        getToken: function (username, password, success) {
            $http({
                url: tokenLink,
                method: 'POST',
                data: {
                    "username": username,
                    "password": password,
                    "grant_type": "password"
                },
                headers: {
                    'Accept': 'application/json, text/javascript, */*',
                    'Content-Type': 'application/x-www-form-urlencoded; charset=UTF-8'
                }
            }).success(function (data) {
                success(data);
            }).error(function (data, status, headers, config) {
                console.log("error");
            });
        }
    }
})
also controller.js
.controller('LoginCtrl', function ($scope, $http, API) {
    $scope.doLogin = function () {
        var loginData = {
            userName: $scope.loginData.username,
            password: $scope.loginData.password
        };
        API.getToken(loginData.userName,loginData.password,function(data){
            console.log(data);
            alert(data);
        });
    };
})
Well, while Jquery Ajax method works fine but this angular factory (API) not works. Throws "The response had HTTP status code 400."
However.Jquery $.ajax running but AngularJS $Http. not! Can someone help me?
