Clojurians Log v2

thanks, that worked

I am having trouble getting this up and running...

prompt@prompt:~/projects/example$ ./task dev
  
   tailwindcss 1.9.6
  
   🚀 Building: tailwind.css
  
   ✅ Finished in 5.7 s
   📦 Size: 2.33MB
   💾 Saved to www/css/main.css
  
SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See <http://www.slf4j.org/codes.html#StaticLoggerBinder> for further details.
Nov 10, 2020 12:37:59 PM io.undertow.Undertow start
INFO: starting server: Undertow - 2.1.3.Final
Nov 10, 2020 12:38:00 PM org.xnio.Xnio &lt;clinit&gt;
INFO: XNIO version 3.8.0.Final
Nov 10, 2020 12:38:00 PM org.xnio.nio.NioXnio &lt;clinit&gt;
INFO: XNIO NIO Implementation Version 3.8.0.Final
Nov 10, 2020 12:38:00 PM org.jboss.threads.Version &lt;clinit&gt;
INFO: JBoss Threads version 3.1.0.Final
shadow-cljs - server version: 2.11.6 running at <http://localhost:9630>
shadow-cljs - nREPL server started on port 7888
Execution error (BindException) at <http://sun.nio.ch.Net/bind0|sun.nio.ch.Net/bind0> (Net.java:-2).
Address already in use

Full report at:
/tmp/clojure-742481856711000833.edn
prompt@prompt:~/projects/example$ 

prompt@prompt:~$ lsof -i :8080
prompt@prompt:~$

I don't seem to be having anything running on port 8080

openjdk 11.0.9 2020-10-20
OpenJDK Runtime Environment (build 11.0.9+11-Ubuntu-0ubuntu1.20.04)
OpenJDK 64-Bit Server VM (build 11.0.9+11-Ubuntu-0ubuntu1.20.04, mixed mode, sharing)
jason@

Clojure 1.10.1

I am following this guide https://findka.com/biff/#introduction

hm, haven't seen that problem come up before. You can use a different port by putting this in config/main.edn:

{...
 :dev {:biff.web/port 8081
       ...}}

Let me try it out

(edited cause I see the log says ubuntu 20.04)

Yep

Funny, I actually do not have :biff.web/port 8081 in web dev config. Let me add it

that's expected; it's set to 8080 by default in the code

Makes sense

Looking much better...

SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See <http://www.slf4j.org/codes.html#StaticLoggerBinder> for further details.
Nov 10, 2020 1:26:59 PM io.undertow.Undertow start
INFO: starting server: Undertow - 2.1.3.Final
Nov 10, 2020 1:26:59 PM org.xnio.Xnio &lt;clinit&gt;
INFO: XNIO version 3.8.0.Final
Nov 10, 2020 1:26:59 PM org.xnio.nio.NioXnio &lt;clinit&gt;
INFO: XNIO NIO Implementation Version 3.8.0.Final
Nov 10, 2020 1:26:59 PM org.jboss.threads.Version &lt;clinit&gt;
INFO: JBoss Threads version 3.1.0.Final
shadow-cljs - server version: 2.11.6 running at <http://localhost:9630>
shadow-cljs - nREPL server started on port 7888

Go to <http://localhost:9630> -&gt; "Builds" -&gt; "start watch" -&gt; "Dashboard".
After the build finishes, go to <http://localhost:8080>.
Connect your editor to nrepl port 7888.
See `./task help` for a complete list of commands.

System started.

Although it reports I should go to 8080. I changed the port to 8085

Perfect. looks like it worked. that's what I meant by the message being hardcoded--I just have (println "... go to <http://localhost:8080>") in the code, it doesn't actually look at what port you used. so if you go to http://localhost:8085 you should see a sign-in form I'd also be interested to see if you can get some other program to run on port 8080, e.g. python3 -m http.server 8080

ah perfect

Nope can't get that to work

prompt@prompt:~/projects/example$ python3 -m http.server 8080
Traceback (most recent call last):
  File "/usr/lib/python3.8/runpy.py", line 194, in _run_module_as_main
    return _run_code(code, main_globals, None,
  File "/usr/lib/python3.8/runpy.py", line 87, in _run_code
    exec(code, run_globals)
  File "/usr/lib/python3.8/http/server.py", line 1294, in <module>
    test(
  File "/usr/lib/python3.8/http/server.py", line 1249, in test
    with ServerClass(addr, HandlerClass) as httpd:
  File "/usr/lib/python3.8/socketserver.py", line 452, in __init__
    self.server_bind()
  File "/usr/lib/python3.8/http/server.py", line 1292, in server_bind
    return super().server_bind()
  File "/usr/lib/python3.8/http/server.py", line 138, in server_bind
    socketserver.TCPServer.server_bind(self)
  File "/usr/lib/python3.8/socketserver.py", line 466, in server_bind
    self.socket.bind(self.server_address)
OSError: [Errno 98] Address already in use

I have something running on 8080

Doing some detective work... Thank you. 🙂

I think jetty server keeps restarting on 8080

tcp6       0      0 127.0.0.1:8080          :::*                    LISTEN      26610/java

All good, I will keep using 8085 for now.

I tried biff and ran into this error right after generating a new project “Refused to execute script from ‘http://localhost:8080/cljs/app/main.js’ because its MIME type (‘text/html’) is not executable, and strict MIME type checking is enabled.”

Did the cljs build finish (at localhost:9630) before you signed in? is there a file at www/cljs/app/main.js?

If the file isn't there, Biff would return the 404 page which would produce the error you have.

Good catch. The file is missing. I had expected a 404 in the console and not a content type mismatch.

I was mislead by that login page existing…

IMHO the error in biff is that it should return a 404 if anything under /cljs/ is not found.

Sounds reasonable. Technically I believe it does return a 404, but the body and content type is for the html not found page, so yeah, confusing. (edit: actually I guess it would've returned a 200 with /app/index.html due to the :biff.http/spa-path option. it would've returned the 404 page in the MPA template). I think I'll add a :biff.http/asset-paths config option which defaults to #{"/cljs/" "/js/" "/css/"}. I'll also add a message to /app/index.html so instead of just Loading... , it also says something like "If you see this page for more than a second, go to localhost:9630 etc"

(also, you probably have figured this out already--but the login page exists since it's just a static html page, not rendered with cljs)