title: prevent multiple posts in react/mongoose
body: <p>I'm working on an app in reactjs/redux with mongoose. I have form which allows to auth ppl add a comment to the article but if user clicks like 10 times in 1 second form gonna send 10 requests.. which is bad. How can I prevent this? 
  Let's say user clicks once on a button and then he needs to wait 5 seconds to send another comment.</p>