Maybe something like this? https://github.com/weavejester/lein-ring/issues/45

Or something like this by adding something to the configurator? https://stackoverflow.com/questions/28174202/how-to-disable-sslv3-for-embedded-jetty-server-for-ring-application

Hm, I'm not familiar with configuring Jetty via XML. But if needed, you can modify the way Jetty starts in Biff by copying https://github.com/jacobobryant/biff/blob/master/src/com/biffweb/impl/misc.clj#L63 into your project, edit as necessary, and use that instead of https://github.com/jacobobryant/biff/blob/master/example/src/com/example.clj#L46. Based on https://github.com/weavejester/lein-ring/issues/17, it looks like the official ring jetty adapter supports a web.xml file. Biff uses https://github.com/sunng87/ring-jetty9-adapter since it comes with bindings for websockets; not sure if that one supports using an xml file easily or not.

Let me know if it would help to replace ring-jetty9-adapter with the official ring adapter--that would be pretty straightforward as well (as long as you're not using websockets), but it'd be made a little easier if I make a couple changes to Biff.

@U7YNGKDHA Hmm yes, I saw that issue but too be honest I didn't really understand most of it 😅. Do you know an easier way to do URL rewriting in development (could be with something apart from Jetty)? I know you can configure it on nginx for production but I'm not sure how suitable that can be. I'm new to web development.

Anyways this is what I did, but I can't seem to get the hello-world function to log my message (it should run when the server starts https://ring-clojure.github.io/ring/ring.adapter.jetty.html) biffweb.clj

(defn use-jetty
  "A Biff component that starts a Jetty web server."
  [{:biff/keys [host port configurator handler]
    :or {host "localhost"
         port 8080
         configurator #'hello-world}
    :as sys}]
  (misc/use-jetty sys)

:dev {:merge [:prod]
       :biff.elham/enable-beholder true
       :biff/host "0.0.0.0"
       :biff/port 4444
       :biff/configurator  ;<--- added this
       :biff/base-url ""
       :biff.xtdb/topology :standalone
       :biff.middleware/secure false

(defn hello-world [sys]
  (while true (log/info "Is this working!!!!!"))

could you share more about your use case for url rewriting? are you wanting to use it for serving static assets? in any case, you actually should be able to do it pretty easily by writing a simple middleware function. put it at the top of the middleware stack, and have it update the :uri key in the request map before passing it on to the next handler. as for the hello-world thing--it doesn't look like the configurator key will be passed to Jetty. you'll need to copy the contents of the misc/use-jetty function into your project and edit that. (Perhaps this is unnecessary if writing some middleware does what you need.)