LOOKER API -Java Integration

[mpvinaykumar]

Hi Team,

I followed as suggested in the documentation for Looker SDK integration with Java (maven):
https://github.com/looker-open-source/sdk-codegen/tree/23b3dbfa1761d8b5d6abf6bbaf59318b91082393/exam...

Question 1: Can I use this Looker SDK integration with Java (maven) approach in Production..?
 

Question 2: when I followed steps and run project, getting below error. kindly guide what I’m missing here..?

Running on Java 8

mvnw exec:java
[INFO] Scanning for projects...
[WARNING]
[WARNING] Some problems were encountered while building the effective model for com.looker:example_maven:jar:1.0-SNAPSHOT
[WARNING] 'dependencies.dependency.systemPath' for com.looker:kotlin-sdk:jar should not point at files within the project directory, ${basedir}/lib/looker-kotlin-sdk.jar will be unresolvable by dependent projects @ line 64, column 19
[WARNING]
[WARNING] It is highly recommended to fix these problems because they threaten the stability of your build.
[WARNING]
[WARNING] For this reason, future Maven versions might no longer support building such malformed projects.
[WARNING]
[INFO]
[INFO] ----------------------< com.looker:example_maven >----------------------
[INFO] Building example_maven 1.0-SNAPSHOT
[INFO] --------------------------------[ jar ]---------------------------------
[INFO]
[INFO] --- exec-maven-plugin:3.0.0:java (default-cli) @ example_maven ---
java.lang.NoClassDefFoundError: io/ktor/client/features/json/GsonSerializer
        at com.looker.rtl.TransportKt$customClient$1$1.invoke(Transport.kt:183)
        at com.looker.rtl.TransportKt$customClient$1$1.invoke(Transport.kt:182)
        at io.ktor.client.HttpClientConfig$install$2.invoke(HttpClientConfig.kt:64)
        at io.ktor.client.HttpClientConfig$install$2.invoke(HttpClientConfig.kt:18)
        at io.ktor.client.features.json.JsonFeature$Feature.prepare(JsonFeature.kt:132)
        at io.ktor.client.features.json.JsonFeature$Feature.prepare(JsonFeature.kt:128)
        at io.ktor.client.HttpClientConfig$install$3.invoke(HttpClientConfig.kt:72)
        at io.ktor.client.HttpClientConfig$install$3.invoke(HttpClientConfig.kt:18)
        at io.ktor.client.HttpClientConfig.install(HttpClientConfig.kt:92)
        at io.ktor.client.HttpClient.<init>(HttpClient.kt:168)
        at io.ktor.client.HttpClient.<init>(HttpClient.kt:81)
        at io.ktor.client.HttpClientKt.HttpClient(HttpClient.kt:43)
        at com.looker.rtl.TransportKt.customClient(Transport.kt:181)
        at com.looker.rtl.AuthSession.doLogin(AuthSession.kt:222)
        at com.looker.rtl.AuthSession.login(AuthSession.kt:102)
        at com.looker.rtl.AuthSession.login$default(AuthSession.kt:102)
        at com.looker.rtl.AuthSession.getToken(AuthSession.kt:83)
        at com.looker.rtl.AuthSession.authenticate(AuthSession.kt:66)
        at com.looker.rtl.APIMethods$authRequest$1.invoke(APIMethods.kt:34)
        at com.looker.rtl.APIMethods$authRequest$1.invoke(APIMethods.kt:34)
        at com.looker.rtl.Transport.httpRequestBuilder(Transport.kt:332)
        at com.looker.sdk.LookerSDK.me(methods.kt:20659)
        at com.looker.sdk.LookerSDK.me$default(methods.kt:9041)
        at com.looker.sdk.LookerSDK.me(methods.kt)
        at com.looker.example.ExampleRunner.runCallMe(ExampleRunner.java:44)
        at com.looker.example.ExampleRunner.main(ExampleRunner.java:20)
        at org.codehaus.mojo.exec.ExecJavaMojo$1.run(ExecJavaMojo.java:254)
        at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.ClassNotFoundException: io.ktor.client.features.json.GsonSerializer
        at java.net.URLClassLoader.findClass(URLClassLoader.java:382)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:418)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:351)
        ... 28 more

[李美萱]

I'm not sure if you are using eclipse development environment for windows environment.

If so, you need to first confirm whether these jars have been added to your java build path.