Computer scienceBackendKtorKtor Introduction

Ktor Engines

Theory

Launching the application

Report a typo

Select the two identical launches of the Ktor application.

1)

fun main() {
    embeddedServer(Netty, port = 8080, configure = {
        callGroupSize = 10
        connectionGroupSize = 2
        workerGroupSize = 5
    }) {
    routing {
        get("/") {
            call.respondText("Hello World!")
        }
    }
    }.start(wait = true)
}

2)

fun main(args: Array<String>) {
    EngineMain.main(args)
}

fun Application.module() {
    routing {
        get("/") {
            call.respondText("Hello, world!")
        }
    }
}

application.conf:

ktor {
    deployment {
        port = 80

        callGroupSize = 10
        connectionGroupSize = 2
        workerGroupSize = 5
    }
    application {
        modules = [ com.example.ApplicationKt.module ]
    }
}

3)

fun main() {
    embeddedServer(Netty, port = 8080) {
    routing {
        get("/") {
            call.respondText("Hello!")
        }
    }
    }.start(wait = true)
}

4)

fun main(args: Array<String>) {
    EngineMain.main(args)
}

fun Application.module() {
    routing {
        get("/") {
            call.respondText("Hello, world!")
        }
    }
}

application.conf:

ktor {
    deployment {
        port = 8080

        callGroupSize = 10
        connectionGroupSize = 2
        workerGroupSize = 5
    }
    application {
        modules = [ com.example.ApplicationKt.module ]
    }
}

5)

fun main() {
    embeddedServer(Netty, port = 8080, configure = {
        requestReadTimeoutSeconds = 10
        responseWriteTimeoutSeconds = 10
    }) {
    routing {
        get("/") {
            call.respondText("Hello World!")
        }
    }
    }.start(wait = true)
}

6)

fun main(args: Array<String>) {
    EngineMain.main(args)
}

fun Application.module() {
    routing {
        get("/") {
            call.respondText("Hello, world!")
        }
    }
}

application.conf:

ktor {
    deployment {
        port = 80
    }
    application {
        modules = [ com.example.ApplicationKt.module ]
    }
}
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