Middleware compilers don't get access to route path

[valerauko]

:compile'ing middleware takes a bit of effort around the internals if the compiler function would need the route path.

In my case, I have a logger middleware that would include the route path template (also available as :template in Match) in the log. This information is fixed at compile time, so it feels wasteful to extract it every request from the Match.

Workaround

Using a :compile like below (in the case of reitit.ring/router) injects the :path into the data passed into the compiler.

(defn compile-add-path
  [[path data extra] opts]
  (reitit.ring/compile-result [path (assoc data :path path) extra] opts))

Path is a special case because it's treated separately from the data. Documentation around :compile isn't that rich, so I think it'd be preferable to inject the path into route-data (rather than have people copy-paste a compiler function they don't understand)