Hello, guys! I just created my first http4k app th...

# http4k

[Johannes Wirde]

Hello, guys! I just created my first http4k app through your magical wizard and it yields me this error:
Error: Main method not found in class com.example.HelloWorldKt, please define the main method as:
public static void main(String[] args)
... and that is yucky Java stuff... What should I put in my fun main() function?

[dave]

I suspect this may be something regarding your envirionment. Just to make sure - I've just generated a completely vanilla toolbox and run the main class from the IDE.. It worked:

[dave]

How did you run your app?

[Johannes Wirde]

Using the gradle target "run", I can't

[Johannes Wirde]

No main function

[Johannes Wirde]

Screenshot 2024-03-29 at 22.32.06.png

[dave]

yeah - ok - this is a problem because you're using a serverless function instead of a server app. But it's easy to get it running. You should already have TestApp.kt - add a couple of lines and then run it from there..

package com.example

import org.http4k.server.SunHttp
import org.http4k.server.asServer

val app = HelloWorldAppLoader(emptyMap())

fun main() {
    app.asServer(SunHttp(8000)).start()
}

[dave]

Then you can browse to:

<http://localhost:8000/ping>

[Johannes Wirde]

Ok, it works now! Thanks!