(this obviously adds the burden of dealing with er...

# http4k

[dave]

(this obviously adds the burden of dealing with errors yourself at the benefit of better performance, which most apps won't generally care about)

[Razvan]

It was more about custom application error messages, but I guess it can also be done with a filter on the response (in the exception case).

And while I'm at lenses should I use shared object with them if I'm using same in several places or they are cheap to create ?

[dave]

We always share them by default. Or at least try not to create them every time. They should be cheap though - the JVM is pretty wicked at optimisation