如何根据许可证安装仅适用于一个项目的私有 NPM package？

Question

Let's say I have an NPM organization and I just created a private npm module with my company's IP/framework that we reuse internally.

I want this module to be reused in multiple projects for multiple clients. However I want to offer this private npm package only once / project / client. (Or: once / machine / client)

How do I avoid the client taking that private npm package and reuse it for other projects without my company agreeing to it by purchasing another license?

Is there a way to protect packages like this for an agency/client type lincensed relationship?

I know with an.npmrc file the client's server where the package is installed needs to be authenticated, however I don't know if that authentication can be restricted to a single Host/IP or something similar?

Is there a solution for this? If not, what would it take to develop it?

Answer 1

Since the packages will be served via HTTP(S), you can enforce the clients to go through an API gateway, which will enforce those rules of rate limiting you want, so for example you can use Kong's Rate Limiting feature ( https://docs.konghq.com/hub/kong-inc/rate-limiting/ ), setup a Kong API gateway as a proxy for the npm registry.