AngularJs - Unable to pass object using routeProvider - angularjs

Question

I load some data from the server, and then update the view using ng-repeat. The user has the ability to edit the data in another page. Now, is the part where I'm a bit confused. I can pass some parameters using $routeProvided combined with $routeParams, lets say id and fetch the data again from the server depending on that id. I believe there's a better way, something like passing the whole object to the next controller, rather than conducting another call the server. That's what I've got working right now:
app.config(function($routeProvider) {
$routeProvider
.when('/editPost/:postId/:author', {
templateUrl: 'editPost.html',
controller: 'editPostCtrl'
});
});
app.controller('editPostCtrl', function($scope, $routeParams) {
console.log($routeParams.author + ", " + $routeParams.postId);
});
Now, I cant extract the object with the following code:
HTML:
<div ng-repeat="post in posts">
<button class="btn" ng-click="editPost(post)">Edit</button>
</div>
JS:
app.config(function($routeProvider) {
$routeProvider
.when('/editPost/:post', {
templateUrl : 'editPost.html',
controller : 'editPostCtrl'
});
});
app.controller('editPostCtrl', function($scope, $routeParams) {
console.log($routeParams.post); //results in [object object]
});
Is there a better way for achieving this?