Question

I am trying to integrate yahoo in my app. I am trying,

private static final String YAHOO_CALLBACK_URI = "MyApp://oauth";
public static final String YAHOO_REQUEST_TOKEN_URL = "http://api.login.yahoo.com/oauth/request_token";//api.login.yahoo.com
public static final String YAHOO_ACCESS_TOKEN_URL = "http://api.login.yahoo.com/oauth/access_token";
public static final String YAHOO_AUTHORIZE_URL = "http://api.login.yahoo.com/authorize";


CommonsHttpOAuthConsumer consumer = new CommonsHttpOAuthConsumer(YAHOO_CONSUMER_KEY, YAHOO_CONSUMER_SERECT_KEY);
    OAuthProvider provider = new CommonsHttpOAuthProvider(YAHOO_REQUEST_TOKEN_URL, YAHOO_ACCESS_TOKEN_URL, YAHOO_AUTHORIZE_URL);
    provider.setOAuth10a(true);
    try {
        String authUrl = provider.retrieveRequestToken(consumer, YAHOO_CALLBACK_URI);// Can I pass Null for callback url.
        System.out.println("AuthURL = " + authUrl);
    } catch (OAuthMessageSignerException e) {
        e.printStackTrace();
    } catch (OAuthNotAuthorizedException e) {
        e.printStackTrace();
    } catch (OAuthExpectationFailedException e) {
        e.printStackTrace();
    } catch (OAuthCommunicationException e) {
        e.printStackTrace();
    }

getting

oauth.signpost.exception.OAuthCommunicationException: Communication with the service provider failed: Service provider responded in error: 404 (Not Found)

Why we are unable to retrieve request token.

Answer 1

1. Make sure your app on Yahoo is registered as Web-Based. When you register as a Web-Based application, give a valid Application URL and App Domain of your choice (both should be the same domain), but has not been used by anyone else. I, for example, have the url of a website I own. This will also be used as the callback url in your consumer.
2. Instead of calling “MyApp://oauth”, give a valid http callback url (the same one you used to register the app). With that much, your code above should work.
3. Open a new Webview and call the authUrl. Once your app is authorised, intercept the call to your application url by overriding the “onPageStarted” method. There, make a callback to your app by launching a new intent pointing to “MyApp://oauth”.

Please let me know if any of the obove steps confuse you – I am more than happy to help.