This. In my last project I tried to use scalatra with slick, and while I really liked scalatra, slick made me go nuts. I had to jump over so many hoops that it

This. In my last project I tried to use scalatra with slick, and while I really liked scalatra, slick made me go nuts. I had to jump over so many hoops that it was just a pain. I'm currently working on a new project (still research phase) where I was pondering going with Spray and a lightweight Postgresql wrapper because I primarily need to read data from a database, do some transformations on it, and write it out as JSON as fast as possible. I had it working in Spray, but I had issues with server crashes and the speed wasn't as I'd have expected. I fiddled with it for one day, and then, out of frustration, decided to give openresty a try. I've never written much Lua in my life, but after only a couple of hours, I had it working, and it was far, far faster than the Spray implementation. I did some research there, and it seems that the database stuff took a whole lot longer in Scala/Spray than in Lua. Now, of course, I loose type safety, so there may be hidden issues in there, but since I'm really just doing simple data transformations, I think I'm fine with lua / openresty. As a first verdict, I really, really like what I've seen of Openresty so far.