Node.js：确定package.json的手动安装的模块和版本号

I am about to prepare a webserver for "production-mode" (MEAN environment, talking about server-side), thus also creating the package.json file for my project. As it employs heaps of files and modules now, I am trying to figure out the easiest and most reliable way of defining which modules to consider for my package.json file:I am about to prepare a webserver for "producti