Passing object to function in angular js - angularjs

Question

Here I am trying to pass user entered data in to angular function so that i can send it to server. but data is not receing in function.
var app = angular.module('myApp', []);
app.controller('myCtrl', function ($scope, $http) {
$scope.submitForm = function (data) {
console.log(data + " " + data.fname + " " + data.lname);
$http({
method: 'POST',
url: "update",
data: data,
headers: {'Content-Type': 'application/x-www-form-urlencoded'}
}).success(function (result) {
console.log(result);
});
}
});
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.22/angular.min.js"></script>
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" rel="stylesheet"/>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js"></script>
<div ng-app="myApp" ng-controller="myCtrl">
<form name="update">
<div class="form-group">
<div class="col-lg-4 col-md-4">
<label for=fname">First Name</label>
</div>
<div class="col-lg-8 col-md-8">
<input type=text" class="form-control" id="fname" name="fname" placeholder="First Name"
ng-bind="user.fname" data-validation="required" data-validation-error-msg="First Name required"/>
</div>
</div>
<div class="form-group">
<div class="col-lg-4 col-md-4">
<label for="lname">Last Name</label>
</div>
<div class="col-lg-8 col-md-8">
<input type=text" class="form-control" id="lname" name="lname" placeholder="Last Name"
ng-bind="user.lname" data-validation="required" data-validation-error-msg="Last Name required"/>
</div>
</div>
<div class="form-group">
<div class="col-lg-4 col-md-4">
<label for="submit" class="sr-only" >submit</label>
</div>
<div class="col-lg-8 col-md-8">
<input type="submit" class="form-control btn btn-success" id="update"
ng-click="submitForm(user)"
name="submit" placeholder="Submit"/>
</div>
</div>
</form>
</div>

Answer 1

Instead of ng-bind use ng-model
ng-bind="user.fname" ---> ng-model="user.fname",
use this for all form elements.