Express 3.x - API ReferenceExpress 3.x IS NO LONGER MAINTAINED Known and unknown security and performance issues in 3.x have not been addressed since the last update (1 August, 2015). It is highly recommended to use the latest version of Express. 3.x API express() Creates an Express application. The express() function is a top-level function exported by the express module. var express = require('express') var app = express(
