Passing data attributes with ui-sref

I want pass some extra data into the controller from ui-sref. I am looping a json object and adding data to the sref: <a data-imgName="{{ img.name }}" data-imgDesc="{{ img.desc }}" ui-sref="main.imgDesc({imgid: '{{ img.id }}'})">

$stateProvider.state('main.imgDesc', {
        url: '/image/:imgid',
        templateUrl: '...',
        controller: 'ImageDescCtrl'
    });

I want imgName and imgDesc into the controller. I have checked $state but its not found in it. Is there any way?

We should use params : {} to declare any kind of parameter, even complex object:

$stateProvider.state('main.imgDesc', {
    url: '/image/:imgid',
    templateUrl: '...',
    controller: 'ImageDescCtrl',
    params: {
       imageData: null,
    }
});

And we are ready to pass those

ui-sref="main.imgDesc({imgid: img.id, imageData: img })"

and controller can ask for $stateParams where both will be available (if passed as above)