clojure 2024-01-22 | Slack Archive

Samuel Ludwig17:01:44

Posting here from the (rather unpopulated) #compojure channel: In compojure, am I able to create a "catch-all" default route if no other routes are matched? I'm basically trying to return a response that includes parts of the original request (for debugging). There is the compojure.route/not-found function(macro?), but I don't see how I'd be able to get the request with it- as far as I can tell I can only provide an explicit (as in, non-parameterized) body to use as response.

hiredman17:01:18

The way compojure does routing it applies a handler to a request, and if the handler returns nil that means the route did not match

hiredman17:01:18

So (fn [req] (or (handler req) (my-not-found-handler req)))

hiredman17:01:33

Alternatively, I believe you can just put a ring handler at the end of all your routes

hiredman17:01:30

Because what (GET ...) actually does is create a ring handler, so what routes (and defroutes) take is a sequence of handlers to try in turn

Samuel Ludwig17:01:30

I think I understand what you're talking about, I am defining everything via defroutes, I'll try and wrap that in something that'll give me my debug info- appreciate the input so far!

hiredman17:01:52

Or just put your not found handler at the end

hiredman17:01:43

(defroutes .... (fn [req] not found stuff))

hiredman17:01:19

The not-found route thing in compojure isn't for handling not found routes, it is for returning 404 not found, which you want to do in some cases if no routes match

2024-01-22

Channels