angular2-library-example | example repository for building your own Angular 2 library | Frontend Framework library

Packaging Angular libraries is still a bit of a black art. It is on the angular-cli roadmap to provide better out-of-the-box support. Meanwhile, you can consult this excellent overview.

Basically, you need to compile your modules and components with ngc, based on a tsconfig.json with specific settings, this being a necessary step in order to create the metadata required by Angular builds, and in-line the templates and CSS (pre-processed if necessary) if they are in external files. The consuming application then imports the modules and components from the directory into which they have been compiled, often something like dist or lib, which can be accomplished with an entry in package.json such as "module": "dist/index.js". If you are publishing to npm, then you could simply publish the dist directory. It is beyond the scope of this short answer to provide more exhaustive details.