Rails - Jan 2012 - how to send a post request and receive json back in rails

I''ve looked through a fair amount of the questions - yet, I am still
confused.

I am making a Rails app that connects with the Healthgraph API (here
http://developer.runkeeper.com/healthgraph/registration-authorization).

I am supposed to make a POST request via Rails - based on a parameter
I recieve and then recieve the JSON. I have tried the outh2, runkeeper
and other gems and they don''t work because of a certain dependency.
However, I am lost on how to POST via Rails and recieve a response.

I do get the code back in my controller - however, I still don''t know
how to get an access token.

  def rktest

    respond_to

    if params[:code]
      require ''oauth2''

      @code=params[:code]

      @cc_id=client_id
      @client_s=client_secret

    else

      @code="None"

    end

I''m trying to also do it via Javascript - but I''d rather not -
since
it leaves my client secret exposed. Also, I don''t recieve data back
either.

    <script type="text/javascript" src="javascripts/
jquery-1.7.1.min.js"></script>

    <script type="text/javascript">

    function get_access_token(code,ccid,cc_s){

    $.ajaxSetup({
    ''beforeSend'': function(xhr){
    xhr.setRequestHeader("Accept", "text/javascript")
    }
    });

    var sent = { ''grant_type'':
''authorization_code'',
    ''code'': code,
    ''client_id'': ccid,
    ''client_secret'': cc_s,
    ''redirect_uri'':
''http://myurl.com/rktest''
    };

    document.write("<p>" + sent + "</p>");

    $.ajax({
    url: ''https://runkeeper.com/apps/token'',
    data: sent,
    type: ''POST'',
    dataType: ''json'',
    success: function(data, status, xhr){
    if (status === ''error'' || !xhr.responseText){
    handleError();
    }else{

    document.write("<p>" + data + "</p>");
    document.write("<p>" + status + "</p>");
    document.write("<p>" + xhr + "</p>");

    }
    }
    });

    }

    <%=
''get_access_token(\''''+@code+''\'',\''''+@cc_id+''\'',\''''+@cc_s
+''\'');'' %>

   </script>

Also, here is my routes file currently:

    match ''/rktest'', :to =>
''main#rktest'', :via => [:get, :post]

Even this does not work.

    RestClient.post ''https://runkeeper.com/apps/token'',
{:params => {
        :grant_type => ''authorization_code'',
        :code => @code,
        :client_id => ''8e9b36478b764ac38ef1bdabc6d14d60'',
        :client_secret =>
''fb66f35c944246588db30e1288501315'',
	:redirect_uri => "http%3A%2F%2Fopenhealthdesigns.com%2Frktest"}}

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Archit Bhise wrote in post #1041310:
> I''m trying to also do it via Javascript - but I''d rather
not - since
> it leaves my client secret exposed. Also, I don''t recieve data
back
> either.
>
> ...
> ...
>     $.ajaxSetup({
>     ''beforeSend'': function(xhr){
>     xhr.setRequestHeader("Accept", "text/javascript")
>     }
>     });
Here''s an decent explanation of why you JavaScript solution will not 
work:

http://www.jquery-tutorial.net/ajax/same-origin-policy/

The same origin policy will prevent your did sending a request directly 
to another domain. Look into JSONP for a workaround to the same origin 
policy.

You should, however, be able to send the request from the server side 
using Ruby.

See open-uri for more details. Here''s one example that I found via 
Google:

http://juretta.com/log/2006/08/13/ruby_net_http_and_open-uri/

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