Working with IBKR

[vkzp]

When I try to create a standalone application to start building some strategies for IBKR, I run into NoClassDefFoundError with the following code inside my main method:

    val feed = IBKRHistoricFeed()
    val symbols = listOf("ABN", "ASML", "KPN")
    val assets = symbols.map { Asset(it, AssetType.STOCK, "EUR", "AEB") }
    feed.retrieve(assets)
    feed.waitTillRetrieved()
    println("historic feed with ${feed.timeline.size} events and ${feed.assets.size} assets")
    feed.disconnect()

java.lang.NoClassDefFoundError: org/roboquant/ibkr/IBKRHistoricFeed$Wrapper
    at org.roboquant.ibkr.IBKRHistoricFeed.<init> (IBKRHistoricFeed.kt:52)
    at org.roboquant.ibkr.IBKRHistoricFeed.<init> (IBKRHistoricFeed.kt:40)
    at ai.cloudpeak.AppKt.main (App.kt:32)
    at ai.cloudpeak.AppKt.main (App.kt)
    at org.codehaus.mojo.exec.ExecJavaMojo.lambda$execute$0 (ExecJavaMojo.java:283)
    at java.lang.Thread.run (Thread.java:840)
Caused by: java.lang.ClassNotFoundException: org.roboquant.ibkr.IBKRHistoricFeed$Wrapper
    at org.codehaus.mojo.exec.URLClassLoaderBuilder$ExecJavaClassLoader.loadClass (URLClassLoaderBuilder.java:163)
    at java.lang.ClassLoader.loadClass (ClassLoader.java:525)
    at org.roboquant.ibkr.IBKRHistoricFeed.<init> (IBKRHistoricFeed.kt:52)
    at org.roboquant.ibkr.IBKRHistoricFeed.<init> (IBKRHistoricFeed.kt:40)
    at ai.cloudpeak.AppKt.main (App.kt:32)
    at ai.cloudpeak.AppKt.main (App.kt)
    at org.codehaus.mojo.exec.ExecJavaMojo.lambda$execute$0 (ExecJavaMojo.java:283)
    at java.lang.Thread.run (Thread.java:840)

I am not very comfortable with Kotlin and am going to have to learn to make progress, but I was hoping that someone could point me to an obvious misuse or the recommended way to work with IBKR in a standalone roboquant application.

[jbaron]

Unfortunately, it is not allowed to redistribute the Interactive Brokers Java client. So you’ll have to download the TwsApi.jar file yourself. You can download the stable version 10.19 from here: https://interactivebrokers.github.io/ and within the downloaded archive file you’ll find the required TwsApi.jar.

Then install the jar file in the local Maven repository on your machine using the following command:

mvn install:install-file -Dfile=TwsApi.jar -DgroupId=com.interactivebrokers -DartifactId=tws-api -Dversion=10.19 -Dpackaging=jar

[vkzp]

I have the suggested version of TwsApi.jar installed in my local m2 repo. 'mvn install' succeeds for me, but when i try to run it ('mvn exec:java') fails with the error I listed earlier - java.lang.NoClassDefFoundError: org/roboquant/ibkr/IBKRHistoricFeed$Wrapper.

Do I need to do anything differently?

$ ls ~/.m2/repository/com/interactivebrokers/tws-api/10.19/
_remote.repositories  tws-api-10.19.jar  tws-api-10.19.jar.lastUpdated  tws-api-10.19.pom  tws-api-10.19.pom.lastUpdated

[jbaron]

The TwsAPi.jar seems to look fine. This is my output:

ls ~/.m2/repository/com/interactivebrokers/tws-api/10.19/
_remote.repositories			tws-api-10.19.jar
tws-api-10.19-javadoc.jar.lastUpdated	tws-api-10.19.pom

Then the next question is the pom.xml file for your application (if you use maven). Does it include this library?

[vkzp]

I ran the maven archetype as suggested here and added the roboquant-ibkr to the generated pom.xml. Here is the relevant part of the pom.xml:

    <repositories>
        <repository>
            <id>mavenCentral</id>
            <url>https://repo1.maven.org/maven2/</url>
        </repository>
        <repository>
            <id>ossrh</id>
            <url>https://s01.oss.sonatype.org/content/repositories/snapshots</url>
        </repository>
    </repositories>
    <dependencies>
        <dependency>
            <artifactId>roboquant</artifactId>
            <groupId>org.roboquant</groupId>
            <version>${roboquant.version}</version>
        </dependency>
        <dependency>
            <artifactId>roboquant-ta</artifactId>
            <groupId>org.roboquant</groupId>
            <version>${roboquant.version}</version>
        </dependency>
        <dependency>
            <artifactId>roboquant-avro</artifactId>
            <groupId>org.roboquant</groupId>
            <version>${roboquant.version}</version>
        </dependency>
        <dependency>
            <artifactId>roboquant-ibkr</artifactId>
            <groupId>org.roboquant</groupId>
            <version>${roboquant.version}</version>
        </dependency>
        <dependency>
            <groupId>org.jetbrains.kotlin</groupId>
            <artifactId>kotlin-stdlib</artifactId>
            <version>${kotlin.version}</version>
        </dependency>
        <dependency>
            <groupId>org.jetbrains.kotlin</groupId>
            <artifactId>kotlin-test-junit5</artifactId>
            <version>${kotlin.version}</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-simple</artifactId>
            <version>2.0.7</version>
        </dependency>
    </dependencies>

[jbaron]

Try adding the client lib dependency also to the pom file:

<dependency>
    <groupId>com.interactivebrokers</groupId>
    <artifactId>tws-api</artifactId>
    <version>10.19</version>
</dependency>

[vkzp]

That was it, thank you!