When running an Express app behind a proxy, set (by using app.set()) the application variable trust proxy to one of the values listed in the following table.

Overview Middleware functions are functions that have access to the request object (req), the response object (res)

Overview This article discusses performance and reliability best practices for Express applications deployed to production

Overview Express 4 is a breaking change from Express 3, so. That means an existing Express 3 app will not work if you update

Use the app.engine(ext, callback) method to create your own template engine. ext refers to the file extension, and callback is the template