Access app.set setting in controller of express application on node.js
express, node.js, settings
Solution
If you've created your `app` with the usual call to `createServer()` then there really is no other way to access option settings without going through the object returned by that function. Express does not cache the server object but simply returns the result of `new` on the object.
If you've created your application with the standard express boilerplate generated for you, you likely have a line creating `app` that looks like:
var app = module.exports = express.createServer();
This does not actually create `app` as a global variable but does make it available as a module export. You can access your `mailTemplatesDir` option from another module by requiring your `app.js` module this way:
var templateDir = require('./app').set('mailTemplatesDir');
Problem
In my `app.js` I set the following setting ``` app.set('mailTemplatesDir', __dirname + '/mails'); ``` Now I would like to read the value of `'mailTemplatesDir'` in one of my controllers, how can I access the setting there? I would prefer not to make `app` a global variable.