Hello Alain, Even I'm facing the similar problem, ( irrespective of which service I use ).
It would be nice to have a look at some working Java code . No code sample (for web apps + gdata + OAuth ) has been bundled with the samples ! Regards, Shoubhik Bose. On Jun 10, 8:53 pm, Alain Vongsouvanh <[email protected]> wrote: > Hello, > > Is this related to the Calendar API? You mentioned trying to retrieve > "Contacts" (which is not the API being supported in this forum) and your > code shows that you are trying to retrieve Docs. > Also, try to print the message returned by the exception as it might give > more information as to what is wrong with your code. > > Best, > Alain > > > > > > > > > > On Thu, Jun 9, 2011 at 12:12 AM, manoj <[email protected]> wrote: > > Hi, > > > I am trying to create a simple app on the app engine where users log > > in through their Google account, and then it adds an event to their > > calendar. > > And I am using Java along with Eclipse for this. I have found a simple > > code online: > > > public void doGet(HttpServletRequest req, HttpServletResponse resp) > > throws ServletException, IOException { > > // Create an instance of GoogleOAuthParameters > > GoogleOAuthParameters oauthParameters = new > > GoogleOAuthParameters(); > > oauthParameters.setOAuthConsumerKey(CONSUMER_KEY); > > oauthParameters.setOAuthConsumerSecret(CONSUMER_SECRET); > > oauthParameters.setScope("http://docs.google.com/feeds/";); > > > GoogleOAuthHelper oauthHelper = new GoogleOAuthHelper( > > new OAuthHmacSha1Signer()); > > > // Remember the token secret that we stashed? Let's get it > > back > > // now. We need to add it to oauthParameters > > String oauthTokenSecret = (String) > > req.getSession().getAttribute( > > "oauthTokenSecret"); > > oauthParameters.setOAuthTokenSecret(oauthTokenSecret); > > > // The query string should contain the oauth token, so we > > can just > > // pass the query string to our helper object to correctly > > // parse and add the parameters to our instance of > > oauthParameters > > > oauthHelper.getOAuthParametersFromCallback(req.getQueryString(), > > oauthParameters); > > > try { > > > // Now that we have all the OAuth parameters we > > need, we can > > // generate an access token and access token secret. > > These > > // are the values we want to keep around, as they > > are > > // valid for all API calls in the future until a > > user revokes > > // our access. > > String accessToken = > > oauthHelper.getAccessToken(oauthParameters); > > String accessTokenSecret = > > oauthParameters.getOAuthTokenSecret(); > > > // In a real application, we want to redirect the > > user to a new > > // servlet that makes API calls. For the safe of > > clarity and > > simplicity, > > // we'll just reuse this servlet for making API > > calls. > > oauthParameters = new GoogleOAuthParameters(); > > oauthParameters.setOAuthConsumerKey(CONSUMER_KEY); > > > oauthParameters.setOAuthConsumerSecret(CONSUMER_SECRET); > > > // This is interesting: we set the OAuth token and > > the token secret > > // to the values extracted by oauthHelper earlier. > > These values are > > // already in scope in this example code, but they > > can be populated > > // from reading from the datastore or some other > > persistence > > mechanism. > > oauthParameters.setOAuthToken(accessToken); > > > oauthParameters.setOAuthTokenSecret(accessTokenSecret); > > oauthParameters.setOAuthCallback(" > >http://www.facebook.com";); > > > oauthHelper.getUnauthorizedRequestToken(oauthParameters); > > > // Create an instance of the DocsService to make API > > calls > > DocsService client = new DocsService("Malware > > Inc."); > > > // Use our newly built oauthParameters > > client.setOAuthCredentials(oauthParameters, new > > OAuthHmacSha1Signer()); > > > URL feedUrl = new URL(" > >https://docs.google.com/feeds/default/ > > private/full"); > > DocumentListFeed resultFeed = > > client.getFeed(feedUrl, > > DocumentListFeed.class); > > for (DocumentListEntry entry : > > resultFeed.getEntries()) { > > > resp.getWriter().println(entry.getTitle().getPlainText()); > > } > > > } catch (OAuthException e) { > > // Something went wrong. Usually, you'll end up here > > if we have > > invalid > > // oauth tokens > > resp.getWriter().println("Here is the problem"); > > //Server shows 500 problem > > } catch (ServiceException e) { > > // Handle this exception > > } > > } > > > I have registered my application and added the KEY and Secret above > > the function, but when I deploy it to the app engine it gives a 500 > > server error. > > Could someone post a simple java program that uses gdata and oauth to > > log in a Google user and print the contacts on the screen? > > Thanks. > > > -Manoj > > > -- > > You received this message because you are subscribed to the Google > > Groups "Google Calendar Data API" group. > > To post to this group, send email to > > [email protected] > > To unsubscribe from this group, send email to > > [email protected] > > For more options, visit this group at > >http://code.google.com/apis/calendar/community/forum.html > > -- > Alain Vongsouvanh -- You received this message because you are subscribed to the Google Groups "Google Calendar Data API" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://code.google.com/apis/calendar/community/forum.html
