How to teach webpack to build into a separate file without dependencies?

Question

JavaScript

{ //....
  entry: {
        index: './bootstrap',
        vendor: ["mithril"],
        apps_api: './AppsAPI/AppsAPILibrary'
    },
    output: {
        path: path.join(__dirname, 'public'),
        filename: '[name].js'
    }
// ...
}

There is a project and an application system for this project (the project is built by webpack), applications are loaded in a frame, you need to compile apps_api into separate files so that it works without loading other libraries (Now there is an error about the absence of the webpackJSONP function). How to solve such a problem?