在npm中加载包的多个版本

Question

I am setting up a web API and I'd like to offer multiple versions of the underlying library.

In short, I'd like to call it with: http://myapi/xyz/method where xyz is the version of the underlying library I'm using.

I'm using npm to handle my libraries and seem to be able to specify only one version of the dependencies.

I thought about manually downloading each versions in sub folders of my service but I'm not a big fan of it. Instead, I'd like to just have a list of allowed versions in my config and that it loads them at service start-up for future use.

What's the best way to achieve multi-versions API on a JavaScript web service? I'm open to other package managers as well (instead of npm).

Answer 1

i hope to help, if you want to use different versions, eg express:

"devDependencies": {
  "express": "~3.x",
}

So you will tell no matter npm express version you use, always be from the version "3"