Global Variable in app.js accessible in routes?

Question

How do i set a variable in app.js and have it be available in all the routes, atleast in the index.js file located in routes. using the express fra

Answer 1

A neat way to do this is to use app.locals provided by Express itself. Here is the documentation.

// In app.js:
app.locals.variable_you_need = 42;

// In index.js
exports.route = function(req, res){
    var variable_i_needed = req.app.locals.variable_you_need;
}