Javalin: Server working but not sure of

[soatesuk]

Dear All,

The jetty server is working(see below) but not sure of the results on http://localhost:7000 see below

"C:\Program Files\Java\jdk1.8.0_191\bin\java.exe" "-javaagent:C:\Program Files\JetBrains\IntelliJ IDEA Community Edition 2018.2.5\lib\idea_rt.jar=51419:C:\Program Files\JetBrains\IntelliJ IDEA Community Edition 2018.2.5\bin" -Dfile.encoding=UTF-8 -classpath "C:\Program Files\Java\jdk1.8.0_191\jre\lib\charsets.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\deploy.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\ext\access-bridge-64.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\ext\cldrdata.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\ext\dnsns.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\ext\jaccess.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\ext\jfxrt.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\ext\localedata.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\ext\nashorn.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\ext\sunec.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\ext\sunjce_provider.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\ext\sunmscapi.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\ext\sunpkcs11.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\ext\zipfs.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\javaws.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\jce.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\jfr.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\jfxswt.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\jsse.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\management-agent.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\plugin.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\resources.jar;C:\Program Files\Java\jdk1.8.0_191\jre\lib\rt.jar;C:\IntelliJ Projects\javalin-kotlin-example-master\target\classes;C:\Users\user.m2\repository\io\javalin\javalin\2.3.0\javalin-2.3.0.jar;C:\Users\user.m2\repository\org\slf4j\slf4j-api\1.7.25\slf4j-api-1.7.25.jar;C:\Users\user.m2\repository\org\eclipse\jetty\jetty-server\9.4.12.v20180830\jetty-server-9.4.12.v20180830.jar;C:\Users\user.m2\repository\javax\servlet\javax.servlet-api\3.1.0\javax.servlet-api-3.1.0.jar;C:\Users\user.m2\repository\org\eclipse\jetty\jetty-http\9.4.12.v20180830\jetty-http-9.4.12.v20180830.jar;C:\Users\user.m2\repository\org\eclipse\jetty\jetty-util\9.4.12.v20180830\jetty-util-9.4.12.v20180830.jar;C:\Users\user.m2\repository\org\eclipse\jetty\jetty-io\9.4.12.v20180830\jetty-io-9.4.12.v20180830.jar;C:\Users\user.m2\repository\org\eclipse\jetty\jetty-webapp\9.4.12.v20180830\jetty-webapp-9.4.12.v20180830.jar;C:\Users\user.m2\repository\org\eclipse\jetty\jetty-xml\9.4.12.v20180830\jetty-xml-9.4.12.v20180830.jar;C:\Users\user.m2\repository\org\eclipse\jetty\jetty-servlet\9.4.12.v20180830\jetty-servlet-9.4.12.v20180830.jar;C:\Users\user.m2\repository\org\eclipse\jetty\jetty-security\9.4.12.v20180830\jetty-security-9.4.12.v20180830.jar;C:\Users\user.m2\repository\org\eclipse\jetty\websocket\websocket-server\9.4.12.v20180830\websocket-server-9.4.12.v20180830.jar;C:\Users\user.m2\repository\org\eclipse\jetty\websocket\websocket-common\9.4.12.v20180830\websocket-common-9.4.12.v20180830.jar;C:\Users\user.m2\repository\org\eclipse\jetty\websocket\websocket-api\9.4.12.v20180830\websocket-api-9.4.12.v20180830.jar;C:\Users\user.m2\repository\org\eclipse\jetty\websocket\websocket-client\9.4.12.v20180830\websocket-client-9.4.12.v20180830.jar;C:\Users\user.m2\repository\org\eclipse\jetty\jetty-client\9.4.12.v20180830\jetty-client-9.4.12.v20180830.jar;C:\Users\user.m2\repository\org\eclipse\jetty\websocket\websocket-servlet\9.4.12.v20180830\websocket-servlet-9.4.12.v20180830.jar;C:\Users\user.m2\repository\com\fasterxml\jackson\module\jackson-module-kotlin\2.8.6\jackson-module-kotlin-2.8.6.jar;C:\Users\user.m2\repository\com\fasterxml\jackson\core\jackson-databind\2.8.6\jackson-databind-2.8.6.jar;C:\Users\user.m2\repository\com\fasterxml\jackson\core\jackson-core\2.8.6\jackson-core-2.8.6.jar;C:\Users\user.m2\repository\com\fasterxml\jackson\core\jackson-annotations\2.8.0\jackson-annotations-2.8.0.jar;C:\Users\user.m2\repository\org\jetbrains\kotlin\kotlin-reflect\1.0.5\kotlin-reflect-1.0.5.jar;C:\Users\user.m2\repository\org\slf4j\slf4j-simple\1.7.25\slf4j-simple-1.7.25.jar;C:\Users\user.m2\repository\org\jetbrains\kotlin\kotlin-stdlib-jdk8\1.2.71\kotlin-stdlib-jdk8-1.2.71.jar;C:\Users\user.m2\repository\org\jetbrains\kotlin\kotlin-stdlib\1.2.71\kotlin-stdlib-1.2.71.jar;C:\Users\user.m2\repository\org\jetbrains\kotlin\kotlin-stdlib-common\1.2.71\kotlin-stdlib-common-1.2.71.jar;C:\Users\user.m2\repository\org\jetbrains\annotations\13.0\annotations-13.0.jar;C:\Users\user.m2\repository\org\jetbrains\kotlin\kotlin-stdlib-jdk7\1.2.71\kotlin-stdlib-jdk7-1.2.71.jar" app.MainKt
[main] INFO org.eclipse.jetty.util.log - Logging initialized @413ms to org.eclipse.jetty.util.log.Slf4jLog
[main] INFO io.javalin.Javalin -

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[main] INFO io.javalin.Javalin - Starting Javalin ...
[main] INFO org.eclipse.jetty.server.Server - jetty-9.4.12.v20180830; built: 2018-08-30T13:59:14.071Z; git: 27208684755d94a92186989f695db2d7b21ebc51; jvm 1.8.0_191-b12
[main] INFO org.eclipse.jetty.server.session - DefaultSessionIdManager workerName=node0
[main] INFO org.eclipse.jetty.server.session - No SessionScavenger set, using defaults
[main] INFO org.eclipse.jetty.server.session - node0 Scavenging every 660000ms
[main] INFO org.eclipse.jetty.server.handler.ContextHandler - Started i.j.c.u.initialize$httpHandler$1@27c20538{/,null,AVAILABLE}
[main] INFO org.eclipse.jetty.server.handler.ContextHandler - Started o.e.j.s.ServletContextHandler@6c49835d{/,null,AVAILABLE}
[main] INFO org.eclipse.jetty.server.AbstractConnector - Started ServerConnector@3b088d51{HTTP/1.1,[http/1.1]}{0.0.0.0:7000}
[main] INFO org.eclipse.jetty.server.Server - Started @1651ms
[main] INFO io.javalin.Javalin - Jetty is listening on: [http://localhost:7000]
[main] INFO io.javalin.Javalin - Javalin has started \o/

Local Host;

JSON and raw data : Not found

Content-Length: 11
Content-Type: application/json
Date: Tue, 05 Mar 2019 16:59:59 GMT
Server: Javalin

Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,/;q=0.8
Accept-Encoding: gzip, deflate
Accept-Language: en-US,en;q=0.5
Connection: keep-alive
Host: localhost:7000
Upgrade-Insecure-Requests: 1
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:65.0) Gecko/20100101 Firefox/65.0

Thanks in advance

Simon Oates

[tipsy]

Hi @soatesuk. It looks like you're hitting an unmapped endpoint. What's the issue?

[soatesuk]

Hi David,

I very new to web development. I expected to see the users as per the CRUD rest api listed on the local host? I guess this is where seeing the expected outcome helps?

Thanks

Simon

[tipsy]

Could you post your server code?

[soatesuk]

Hi David,

Thanks for your help. I'm not sure how to do this from intellij, that's why I posted the jetty log. I will try to get this to you over the next couple of days but do you have a link how this can be done?

Regards
Simon

[tipsy]

I just mean the code you are running. What is the result of running

import io.javalin.Javalin

fun main(args: Array<String>) {
    val app = Javalin.create().start(7000)
    app.get("/") { ctx -> ctx.result("Hello World") }
}

and visiting http://localhost:7000 in your browser?

[soatesuk]

No, It was the following;

package app

import app.user.User
import app.user.UserDao
import io.javalin.apibuilder.ApiBuilder.*
import io.javalin.Javalin

fun main(args: Array<String>) {

    val userDao = UserDao()

    val app = Javalin.create().apply {
        exception(Exception::class.java) { e, ctx -> e.printStackTrace() }
        error(404) { ctx -> ctx.json("not found") }
    }.start(7000)

    app.routes {

        get("/users") { ctx ->
            ctx.json(userDao.users)
        }

        get("/users/:user-id") { ctx ->
            ctx.json(userDao.findById(ctx.pathParam("user-id").toInt())!!)
        }

        get("/users/email/:email") { ctx ->
            ctx.json(userDao.findByEmail(ctx.pathParam("email"))!!)
        }

        post("/users") { ctx ->
            val user = ctx.body<User>()
            userDao.save(name = user.name, email = user.email)
            ctx.status(201)
        }

        patch("/users/:user-id") { ctx ->
            val user = ctx.body<User>()
            userDao.update(
                    id = ctx.pathParam("user-id").toInt(),
                    user = user
            )
            ctx.status(204)
        }

        delete("/users/:user-id") { ctx ->
            userDao.delete(ctx.pathParam("user-id").toInt())
            ctx.status(204)
        }

    }

}

[tipsy]

If I remember correctly that tutorial doesn't have a path mapped for http://localhost:7000. If you visit http://localhost:7000/users you should see the list of users.

[soatesuk]

Hi David,

Happy Days.

{"0":{"name":"Alice","email":"[email protected]","id":0},"1":{"name":"Bob","email":"[email protected]","id":1},"2":{"name":"Carol","email":"[email protected]","id":2},"3":{"name":"Dave","email":"[email protected]","id":3}}

Thanks for your help.

Great write up in the Java magazine. I hope this creates further success,

Simon

[tipsy]

Great write up in the Java magazine. I hope this creates further success,

Thank you!