Pure functional transformations over immutable, persistent data structures like Clojure's are an absolutely no-brainer for this type of apps where you get data

Pure functional transformations over immutable, persistent data structures like Clojure's are an absolutely no-brainer for this type of apps where you get data from a database system > transform > display like HTML, JSON, etc. I encourage anyone used to an object oriented approach of doing this to give Clojure a try. I used to do this for years in an MVC setting - it's a huge effort for no benefit whatsoever.