Goal that verifies requirements and collects needed information for development.

• Verifies that node and npm (or pnpm) tools are installed.
• Frontend resources that are available inside .jar dependencies will be copied into the node_modules folder.
• If not available package.json and webpack.config.json files will be generated. file.
• package.json and webpack.generated.json will be updated.

Goal that builds the frontend bundle.

The following actions are performed when creating a package:

• Update package.json file with the @NpmPackage annotations defined in the classpath
• Copy resource files used by flow from .jar files to the node_modules folder
• Install dependencies by running npm install
• Update the generated-flow-imports.js file imports with the JsModule, Theme and JavaScript annotations defined in the classpath
• Update webpack.generated.js file.

• generateBundle boolean - Whether to generate a bundle from the project frontend sources or not. Default value is: true
• runNpmInstall boolean - Whether to run npm install after updating dependencies. Default value is: true
• generateEmbeddableWebComponents boolean - Whether to generate embeddable web components from WebComponentExporter inheritors. Default value is: true
• frontendResourcesDirectory File - Defines the project frontend directory from where resources should be copied from for use with webpack. Default value is: ${project.basedir}/" + Constants.LOCAL_FRONTEND_RESOURCES_PATH)
• optimizeBundle boolean - Whether to use byte code scanner strategy to discover frontend components. Default value is: true

• npmFolder File - The folder where package.json file is located. Default is project root dir. Default value is: ${project.basedir}
• frontendDirectory File - A directory with project's frontend source files. Default value is: "${project.basedir}/" + FRONTEND
• productionMode boolean - Whether or not we are running in productionMode. Default value is: ${vaadin.productionMode}
• eagerServerLoad boolean - Whether or not insert the initial Uidl object in the bootstrap index.html. Default value is: "${vaadin." + Constants.SERVLET_PARAMETER_INITIAL_UIDL + "}"
• webpackOutputDirectory File - The folder where webpack should output index.js and other generated files. Default value is: "${project.build.outputDirectory}/" + VAADIN_SERVLET_RESOURCES
• applicationProperties File - Application properties file in Spring project. Default value is: ${project.basedir}/src/main/resources/application.properties
• openApiJsonFile File - Default generated path of the OpenAPI json. Default value is: ${project.build.directory}/generated-resources/openapi.json
• javaSourceFolder File - .Java source folders for scanning. Default value is: ${project.basedir}/src/main/java
• javaResourceFolder File - .Java resource folder. Default value is: ${project.basedir}/src/main/resources
• generatedTsFolder File - The folder where flow will put TS API files for client projects. Default value is: "${project.basedir}/" + FRONTEND + "/generated"
• pnpmEnable boolean - Instructs to use pnpm for installing npm frontend resources. Default value is: true
• requireHomeNodeExec boolean - Whether vaadin home node executable usage is forced. If it's set to {@code true} then vaadin home 'node' is checked and installed if it's absent. Then it will be used instead of globally 'node' or locally installed 'node'. Default value is: false