how do I get a refresh token?

[Rusty Wright]

Is it the call to AuthorizationCodeRequestUrl? Or elsewhere?  Here's my code for that:

        final Credential credential = new Credential.

                Builder(BearerToken.authorizationHeaderAccessMethod()).build();

        AppEngineCredentialStore appEngineCredentialStore =

            new AppEngineCredentialStore();

        if (! appEngineCredentialStore.load(stripesActionBeanContext.getUser().getUserId(), credential)) {

            log.debug("calling AuthorizationCodeRequestUrl");

            String url =

                    new AuthorizationCodeRequestUrl("https://accounts.google.com/o/oauth2/auth",

                            Constants.GOOGLE_API_KEY)

                        .setRedirectUri(Constants

                                .googleOJCCallbackUri(stripesActionBeanContext.getRequest().getScheme(),

                                        stripesActionBeanContext.getRequest().getServerName(),

                                        stripesActionBeanContext.getRequest().getServerPort()))

                        .setScopes(Collections.singletonList("https://www.googleapis.com/auth/urlshortener"))

                        .setState(stripesActionBeanContext.getRequest().getRequestURI())

                        //.set("access_type", "offline")

                        .build();

            log.debug("redirect url: {}", url);

            return (new RedirectResolution(url));

        }

My callback has this:

        TokenResponse tokenResponse =

                new AuthorizationCodeTokenRequest(new UrlFetchTransport(),

                    new JacksonFactory(),

                    new GenericUrl("https://accounts.google.com/o/oauth2/token"),

                    this.code)

                        .setRedirectUri(Constants.googleOJCCallbackUri(

                                getContext().getRequest().getScheme(),

                                getContext().getRequest().getServerName(),

                                getContext().getRequest().getServerPort()))

                        .setClientAuthentication(

                                new ClientParametersAuthentication(

                                        Constants.GOOGLE_API_KEY,

                                        Constants.GOOGLE_API_SECRET))

                        .execute();

        Credential credential2 = new Credential.Builder(BearerToken.authorizationHeaderAccessMethod())

                .addRefreshListener(new CredentialStoreRefreshListener(getContext().getUser().getUserId(),

                        new AppEngineCredentialStore()))

                .setJsonFactory(new JacksonFactory())

                .setTokenServerUrl(new GenericUrl("https://accounts.google.com/o/oauth2/token"))

                .setClientAuthentication(

                        new ClientParametersAuthentication(

                                Constants.GOOGLE_API_KEY,

                                Constants.GOOGLE_API_SECRET))

                .setTransport(new UrlFetchTransport())

                .build()

                .setFromTokenResponse(tokenResponse);

        if (! credential2.refreshToken()) {

            this.addMessage("no refresh token");

        }

        AppEngineCredentialStore appEngineCredentialStore = new AppEngineCredentialStore();

        appEngineCredentialStore.store(getContext().getUser().getUserId(), credential2);

This is how I use the Credential.  When the token is expired this code fails.

        HttpRequestFactory requestFactory = new UrlFetchTransport()

            .createRequestFactory(getContext().getCredential());

        HttpResponse httpResponse = requestFactory

            .buildGetRequest(new GenericUrl("https://www.googleapis.com/urlshortener/v1/url/history"))

            .execute();

Thanks!

[Rusty Wright]

I can get it if I set approval_prompt to force.  Here's the latest version of my code:

http://pastebin.com/s7WQX68V

Other than having to do that I'm a happy camper.  Thanks for the library google guys.