$ npx create-cljs-project node-server-test [snip...] ---- Done. Actual project initialization will follow soon. ---- $ cd node-server-test/ $ npx shadow-cljs node-repl shadow-cljs - config: /home/harold/node-server-test/shadow-cljs.edn shadow-cljs - updating dependencies shadow-cljs - dependencies updated shadow-cljs - server version: 2.26.2 running at http://localhost:9630 shadow-cljs - nREPL server started on port 36159 shadow-cljs - #4 ready! cljs.user=> (defn handler [req res] (println "INSIDE") (.write res "Hello!") (.end res)) #'cljs.user/handler cljs.user=> (require '["http" :as http]) nil cljs.user=> (def s (http/createServer handler)) #'cljs.user/s cljs.user=> (.listen s 8000) #object[Server [object Object]] ;; Then, in another terminal: $ curl localhost:8000 Hello! ;; And this is seen in the terminal repl: cljs.user=> INSIDE

(cider-jack-in-cljs) shadow node-repl ;; Connected to nREPL server - nrepl://localhost:42703 ;; CIDER 1.9.0 (Barcelona), nREPL 1.0.0 ;; Clojure 1.11.1, Java 11.0.21 ;; Docs: (doc function-name) ;; (find-doc part-of-name) ;; Source: (source function-name) ;; Javadoc: (javadoc java-object-or-class) ;; Exit: <C-c C-q> ;; Results: Stored in vars *1, *2, *3, an exception in *e; ;; Startup: /usr/local/bin/npx shadow-cljs -d nrepl/nrepl:1.0.0 -d cider/cider-nrepl:0.41.0 -d cider/piggieback:0.5.3 server ;; ;; ClojureScript REPL type: shadow ;; ClojureScript REPL init form: (do (require '[shadow.cljs.devtools.api :as shadow]) (shadow/node-repl)) ;; To quit, type: :cljs/quit [:selected :node-repl] shadow.user> cljs.user> (defn handler [req res] (println "INSIDE") (.write res "Hello!") (.end res)) #'cljs.user/handler cljs.user> (require '["http" :as http]) nil cljs.user> (def s (http/createServer handler)) #'cljs.user/s cljs.user> (.listen s 8000) #object[Server [object Object]] ;; And now in the other terminal curl works works again (:  ;; but the "INSIDE" print output is never seen :| cljs.user>