By a combination of a custom typescript worker and a completion provider we can provide completions for modules that are not imported in the current file and automatically import them when selected.
See the demo at https://pieterjanv.github.io/monaco-editor-module-auto-import-demo.
index.js sets up the editor, and registers a custom typescript worker and a
completion provider.
To register a custom worker, we provide Monaco with a url
to a script, myWorker.js, providing a global factory function that
returns a worker that overrides the default completions by calling the
language service method with additional options. Monaco will call this
factory function when it needs a worker.
See the comments and follow the type hints in the code for more details.