Use the new url parameter in answerCallbackQuery to create buttons that open your bot with user-specific parameters

Author: pengrad

src/main/java/com/pengrad/telegrambot/request/AnswerCallbackQuery.java

@@ -21,4 +21,7 @@ public AnswerCallbackQuery showAlert(boolean showAlert) {
         return add("show_alert", showAlert);
     }
 
+    public AnswerCallbackQuery url(String url) {
+        return add("url", url);
+    }
 }