I am trying to run a Ktor server without using an `application.conf`file, but I find no way of confi...

# ktor

[strindberg]

I am trying to run a Ktor server without using an `application.conf`file, but I find no way of configuring the `rootPath`when using embeddedServer. This snippet compiles, but does not affect the root path - the application still uses / as root path:

fun main() {
embeddedServer(
Netty,
port = 8097,
configure = { applicationEngineEnvironment { rootPath = "/api" } },
module = Application::main
).start(wait = true)
}

Does anyone know it it's possible to configure rootPath when using embeddedServer?

[Aleksei Tirman [JB]]

The rootPath property is only applied for the servlet containers. What behavior do you expect with the above code?

[strindberg]

Well, when running through EngineMain, I can configure `rootPath`to "/api", and all endpoint paths within my application will have the prefix "/api", i.e. I can specify a route "/users", and it will be available for requests at "/api/users" . I wanted to do the same, but with embeddedServer.

[david dereba]

If am am getting you right @strindberg, to achieve that you need to do something like this

routing {
route("/users"){
post("/add") {
val requestUser = call.receive<User>()
val userId = UserDao.addUser(requestUser.name)
val newUser = User(userId, requestUser.name)
call.respond(HttpStatusCode.Created, newUser)
}


I hope this helps

[strindberg]

Thank you David, but my problem is not with the implementation of my route. What I want to achieve is for all rest paths to have the prefix "/api", without having to specify if for every endpoint. This can be achieved when running through EngineMain, configuring it in application.conf, but I can find no way of doing the same kind of configuration in EmbeddedServer.

[david dereba]

I now understand you @strindberg, but from my side have not tried implementing that before and I should try but in the meantime, I hope you will find someone who has a solution, thanks.

[Aleksei Tirman [JB]]

@strindberg the problem is that you've configured the server incorrectly. Here is a correct way:

embeddedServer(
    Netty,
    applicationEngineEnvironment {
        rootPath = "/api"
        connector {
            port = 8097
        }
        module(Application::main)
    }
).start(wait = true)

[strindberg]

@Aleksei Tirman [JB] Thank you! That solved my problem.