How to use

ProcessEnv

function

in

1/process

function options() {
 let options = {};
 options.port = process.env.PORT;
 options.clientDirPath = process.env.CLIENT_DIR || null;
 options.indexPath = process.env.INDEX || null;
 options.staticDirPath = process.env.STATIC_DIR || null;
 return options;
}