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kotlinlang

I was wondering something regarding lenses.
Should I define a lens such as this:
```
Body.auto&lt;RequestBody&gt;().toLens()
```
Once as a constant and use it inside of other methods?
Or write it inside of a method?
I guess what i’m asking if it will be recreated every time in the method with no reason :x

You can do either - we tend to (inconsistently) define them as constants so they can be reused easily - but TBH I suspect that recreating them every time would have a negligible effect in the grand scheme of things

I’m a bit anal about performance :smile:

but yes - sharing the instance is our preferred mechanic

and also, the JVM is *really* good at optimising hot code paths, so you might find that it makes less difference over time

Sorry dave, I’m so swamped at work I don’t even have time to run these tests, but once things calm down I’ll be using http4k in my personal project and bench mark it and share :smile: