More reusable internal API?

[myguidingstar-zz]

I'm working on two other versions of cljs-http that work on Nodejs and ArangoDB/Foxx. Of course it's fine to just refer to some vars in cljs-http.client. But do you think it's sensible to make internal API more reusable, given that only several things need to be changed in each version. And since cljs-http internal API work on plain Clojure data structure, most of it can be ported to JVM Clojure seamlessly.