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Generating web3j client wrappers

There are two ways to generate web3j client wrappers for given CorDapps.

1. Using the CLI
2. Using a Gradle task

Using command-line tool

Please refer to the CLI section.

Using a Gradle task

We should add the task to generate the CorDapp client wrappers using the following:

task generateCorDappWrappers(type: JavaExec, group: 'web3j') {
    classpath = sourceSets.main.runtimeClasspath
    main = 'org.web3j.corda.console.CordaCommandMain'

    args 'generate', 
            '--package-name', project.group,
            '--cordapps-dir', projectDir,
            '--output-dir', "$projectDir/clients"
}

It exposes a Gradle task generateCorDappWrappers which can be invoked to generate client wrappers for the CorDapps.

To use the Web3j Corda command-line from your project, you'all also need to include this in your project build file:

Maven

<dependency>
    <groupId>org.web3j.corda</groupId>
    <artifactId>web3j-corda-console</artifactId>
    <version>0.2.6</version>
</dependency>

Gradle

dependencies {
    testImplementation "org.web3j.corda:web3j-corda-console:0.2.6"
}