Wesley:

Opensocial API will not allow you to list all people which have your app
installed. You will able to list just your friends, who have your app
installed. Example:

var req = opensocial.newDataRequest();
var viewerFriends = opensocial.newIdSpec({ "userId" : "VIEWER", "groupId" :
"FRIENDS" });
var opt_params = {};
opt_params[opensocial.DataRequest.PeopleRequestFields.FILTER ] =
opensocial.DataRequest.FilterType.HAS_APP;
req.add(req.newFetchPeopleRequest(viewerFriends, opt_params),
'viewerFriends');
req.send(onLoadFriends);

function onLoadFriends(data){
// handle stuff
}


If you want to do grab * everyone who´s using * you´ll need to write some
serverside code - it can be using php, python, or whatever you like. Would
be something like:

- During first loading, check if opensocial_owner_id is persisted on your
database. If not, save some information there to make sure this person has
your app installed;

- Load this information from your database and render it;

To do that, basically you´ll need to handle some requests, using
gadgets.io.makeRequest function.

I wrote an example some time ago. It´s not necessarily what you want, but
will give you a clue about how you can make it work. See:

http://www.opensocial-br.org/simples-exemplo-de-opensocial-com-oauth-usando-templates-e-request-com-json/

Let me know if you have any doubt.

Robson Dantas
2010/3/24 Wesley Alves Oliveira <wesle...@gmail.com>

> That's right, I want to show it to your friends list track, which has the
> added application, is how I make the call via the code. PHP?, have some
> example for me to see how it would
>
> 2010/3/24 Prashant (Google) <p...@google.com>
>
> Hi Wesley,
>>
>> Didn't quite understand what you're trying to do. But if you mean you
>> want to display all the users that are using your app to everyone who
>> has your app installed, I'm not sure that's not possible, because that
>> will be a violation of privacy. What you can do is to display the list
>> of friends of a person who have that app installed (using
>> opensocial.DataRequest.FilterType.HAS_APP).
>>
>> ~Prashant.
>>
>> On Mar 23, 7:21 pm, Wesley Alves Oliveira <wesle...@gmail.com> wrote:
>> > I wanted to create a page within my application, to display all users
>> that
>> > have added the application to your profile, creating such a one-two
>> showing
>> > the photos, link profile, and the name and description, like
>> applications
>> > such as "Happy Harvest" Which shows the list of friends who have the
>> > application.
>>
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