As I can see in https://npmjs.org/doc/config.html one way to expose config section of package.json to environment variables is use npm start command.
I found modules that loads package.json file as JSON and export config property after that. But the easiest way is define all configuration as module and require it on demand. Am I right? Any suggestions?
You can also load the entire package.json as a module with require('./package') and the entire JSON object will be that module's exports, so you can do console.log(require('./package').version);, for example.