@Produces @Twitter @ApplicationScoped public static OAuthAppSettings createSettings() { String apiKey = System.getenv(PROP_API_KEY); String apiSecret = System.getenv(PROP_API_SECRET); String apiCallback = System.getenv(PROP_API_CALLBACK); if(apiCallback == null) { apiCallback = "auth"; } SimpleOAuthAppSettingsBuilder builder = new SimpleOAuthAppSettingsBuilder(); builder.apiKey(apiKey).apiSecret(apiSecret).callback(apiCallback); return builder.build(); }