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Enable customizing the nrepl websocket port

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* Fixes #140
This commit is contained in:
PEZ 2025-12-05 22:53:46 +01:00
parent c449f55a9b
commit d215e5878b
2 changed files with 13 additions and 1 deletions
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10
doc/nrepl/README.md
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@ -42,6 +42,16 @@ you should be able evaluate expressions in `playground.cljs`. See a demo
Note that the nREPL server connection stays alive even after the browser window Note that the nREPL server connection stays alive even after the browser window
refreshes. refreshes.
### Custom host address
By default, the browser will connect to a websocket on the same host as it is loaded
from, using `window.location.hostname`. If you need something else you can specify
that setting the window variable `SCITTLE_NREPL_WEBSOCKET_HOST` like so:
``` html
<script>var SCITTLE_NREPL_WEBSOCKET_HOST = 'localhost';</script>
```
### CIDER ### CIDER
Choose `cider-connect-cljs`, select port `1339`, followed by the `nbb` REPL Choose `cider-connect-cljs`, select port `1339`, followed by the `nbb` REPL

4
src/scittle/nrepl.cljs
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@ -8,7 +8,9 @@
(when-let [ws-port (.-SCITTLE_NREPL_WEBSOCKET_PORT js/window)] (when-let [ws-port (.-SCITTLE_NREPL_WEBSOCKET_PORT js/window)]
(set! (.-ws_nrepl js/window) (set! (.-ws_nrepl js/window)
(new js/WebSocket (ws-url (.-hostname (.-location js/window)) ws-port "_nrepl")))) (new js/WebSocket (ws-url (or (.-SCITTLE_NREPL_WEBSOCKET_HOST js/window)
(.-hostname (.-location js/window)))
ws-port "_nrepl"))))
(when-let [ws (nrepl-server/nrepl-websocket)] (when-let [ws (nrepl-server/nrepl-websocket)]
(set! (.-onmessage ws) (set! (.-onmessage ws)