Hi all! I have develop a ktor app locally and I ha...

# ktor

[Sebastien Leclerc Lavallee]

Hi all!
I have develop a ktor app locally and I have routes likes /account or /events that I would call at <http://localhost:8080/events> for example.

Now I have deployed it on a server at something like <https://some.domain/api/> and I call endpoints at <https://some.domain/api/events> . Now there aren’t any route that is matched when I call that endpoint. I have an intercept where I print the request path and it says the path is /api/events which makes sense.

My question is, how do I tell ktor that it’s hosted under a specific path ? In this case /api . This way, it would strip the /api part and the route would get matched and my code would run as expected.
Thanks 🙂

[Aleksei Tirman [JB]]

Hey. Did you deploy a Ktor server inside a servlet container?

[Aleksei Tirman [JB]]

You can configure a rootPath in the server environment to solve your problem. Here is an example:

embeddedServer(Netty, applicationEngineEnvironment {
    rootPath = "/api"

    connector {
        port = 4444
    }

    module {
        routing {
            get("/events") {
                call.respondText { "Hello" }
            }
        }
    }

}).start(true)

[Sebastien Leclerc Lavallee]

@Aleksei Tirman [JB] Thanks! No it’s not deployed in a container. It was but Tomcat was taking too much RAM for my web hosting so I decided to deploy as a fat jar (ShadowJar).

Is it possible to set that rootPath inside the application.conf file? On the same level as the port.

[Aleksei Tirman [JB]]

Yes. This should work.

[Sebastien Leclerc Lavallee]

Currently I’m using this way of starting my web engine:

fun main(args: Array<String>): Unit = io.ktor.server.netty.EngineMain.main(args)

And my understanding is that it gets the port from the application.conf and probably other configuration.

Now is having the embeddedServer inside the main function is a better way?

embeddedServer(Netty, applicationEngineEnvironment { } )

Thanks

[Aleksei Tirman [JB]]

No. It’s just a matter of taste.

[Sebastien Leclerc Lavallee]

Great, thanks!

[Sebastien Leclerc Lavallee]

Just a little follow up. I had the time to make the changes and everything worked as expected! Thanks again!