favourite/Bookmark specific api item

So i have an API that gets a list of questions asked and i have a bookmark page where the user can see the questions that he bookmarked, there is no sign in option in this website that i am doing; i want when the user clicks on bookmark icon, the bookmarked question be saved in the bookmark page via cache . is there a marketplace item for that ? how can i do it ? as Rachana BP said i didn’t understand how i could associate that object with Session on click can you tell me how to ?
1 answers

Since u do not have Users, you can use Session. 

when user clicks on Bookmark, associate that object with Session. 
In the Bookmark page, Show the objects associated with the session.